I just wanna share my experience of 2 weeks trying to install an autoinstaller image of noble onto a special workstation.

We have an autoinstaller image that works well for hundreds of computers and it deploys a heavily customized version of Ubuntu, where corporate login work and so forth. So far so good. I wanted to install that on a Dual AMD Epyc workstation, which proved to be impossible.

What is the main issue? the mainboard has an internal ASMB10-iKVM module, so you can access the device remotely because that thing is quite loud and is located in a dedicated room. That KVM module also provides an virtual USB LAN adapter, so that the host-system can talk to the KVM over that virtual LAN interface. That interface uses the cdc_ether module and is enumerated as enx[MAC-ADDR].

It took me a long time and many image-rebuilds to figure out, that the installer initializes the network like 3 times in a row. First in initramfs, then during the installer pre-phase and then when the actual installer launches it resets the network config again.

My first solution was to convince the network manager to assign a static IP to that interface or disable it, but rebuilding the minimal.squasfs is not the easiest task tbh and I think I have still messed something up here, because even after 10-20 rebuilds in different configurations the setup was not able to continue (either network issue or I think an issue with the checksums). I gave up after while, when i figured out I could just disable the cdc_ether module in grub. That helped to remove the enx interface and solved my network issue entirely.

But for some reason, even though I just blacklisted the module in grub, the installer was not able to perform apt-get update anymore, even though the entire image was unchanged. There is no explanation whatsoever, why this simple change can trigger apt-get update to fail, network is 100% functional at this point. I guess its just my luck. No technical explanation, just random chance.

I have tried to fix apt, but it failed with so many errors... first its not possible to set it back to cdrom anymore, even though the entire main and restricted packages are in the image. The when trying to set cdrom in the sources, it cant find the packages and release-info because all filenames are lowercase in the ISO image but apt expects capitalized names. Fixing that leads to signature errors, trying to disable the requirement for signed repos still lets the apt-get update fail. After two weeks and like 50 image rebuilds or so and hundreds of Copilot and GPT sessions I just did the simplest thing... install on a different machine and just copy the SSD to the big workstation. Now Ubuntu works and I wasted a lot of time for nothing. Im not even sure if its possible to get the installer running on that particular workstation. But at least its working and I have learned... something: Dont mess with Subiquity.

The complexity of Subiquity and the entire installer-process is quite too big TBH. If any issues occur, it feels impossible to debug even for someone like me, who installs all kinds of Linux distros since over 20 years on an almost daily basis. The layered filesystem, the multiple network inits, the apt-complexity... not even ChatGPT and Copilot were able to handle that.

Recently upgraded to 26.04 LTS.

Attached a USB external HDD with Win10 installed, plugged it into my mini-Computer that uses M.2 SSD but doesn't have any SATA connection so the HDD has to be external. This is a non dual boot drive, it only has Win10 on it.

The Disks app in Mate desktop sees the Win10 drive and allows mounting the 1st and 3rd Windows partitions but it won't mount the files partition #2. It shows "Error mounting File system" when I try to mount the files partition. I was able to read Win10 files off this same HDD back when I had 25.04 or perhaps 24.04.

I've checked AI for a solution to mounting that partition but nothing worked.

Is Ubuntu 26.04 supposed to still be able to read NTSF files like in the past? Or has that changed?

Thanks.

PS: I see an answer from V14.04 but I'd rather see something more recent if I need to use terminal commands.

My Specs is not bad GTX 1060 i7,...

tried updating drivers,disable gpu acceleration,changing wayland,Xorg but not work

Note: Not videos only, but generally any website contains thumbnails or videos

also i think local videos works good

I’m troubleshooting a suspend problem on Ubuntu. When I close the lid or run sudo systemctl suspend, the laptop screen goes black, but it does not properly sleep or resume. The power button light stays on, and the machine becomes unresponsive. I have to hold the power button to force shutdown.

This started/persists on kernel:

Linux jamshaid-laptop 7.0.0-15-generic #15-Ubuntu SMP PREEMPT_DYNAMIC Wed Apr 22 16:06:43 UTC 2026 x86_64 GNU/Linux

Hardware:

HP Pavilion Gaming Laptop 15-ec2xxx AMD Cezanne APU NVIDIA GTX 1650 Mobile / Max-Q Realtek RTL8852AE Wi-Fi/Bluetooth

Relevant current suspend mode:

cat /sys/power/mem_sleep

Output:

[s2idle] deep

  Kernel command line includes:

  mem_sleep_default=s2idle

I previously tried deep as well, but the issue persisted.

The failure pattern in journalctl is consistent. The system reaches suspend entry and then never logs a suspend exit. Example from a failed boot:

May 22 20:12:55 systemd-logind[2690]: The system will suspend now!
  May 22 20:12:56 systemd[1]: Reached target sleep.target - Sleep.
  May 22 20:12:56 systemd[1]: Starting nvidia-suspend.service - NVIDIA system suspend actions...
  May 22 20:12:56 suspend[12351]: nvidia-suspend.service
  May 22 20:12:56 systemd[1]: nvidia-suspend.service: Deactivated successfully.
  May 22 20:12:56 systemd[1]: Finished nvidia-suspend.service - NVIDIA system suspend actions.
  May 22 20:12:56 systemd[1]: Starting systemd-suspend.service - System Suspend...
  May 22 20:12:56 systemd-sleep[12540]: Successfully froze unit 'user.slice'.
  May 22 20:12:56 systemd-sleep[12540]: Performing sleep operation 'suspend'...
  May 22 20:12:56 kernel: PM: suspend entry (s2idle)

After that, there is no PM: suspend exit. The next boot only happens after a hard power-off.

I originally had NVIDIA suspend hook errors like this:

NVRM: PreserveVideoMemoryAllocations module parameter is set.
  System Power Management attempted without driver procfs suspend interface.
  nv_pmops_suspend [nvidia] returns -5

I fixed that by enabling the NVIDIA systemd services:

sudo systemctl enable nvidia-suspend.service nvidia-resume.service nvidia-hibernate.service

Now they are enabled:

nvidia-suspend.service: enabled
  nvidia-resume.service: enabled
  nvidia-hibernate.service: enabled

NVIDIA driver details:

NVIDIA driver 580.142

NVIDIA module options:

options nvidia_drm modeset=1
  options nvidia NVreg_PreserveVideoMemoryAllocations=1
  options nvidia NVreg_TemporaryFilePath=/var/tmp

/proc/driver/nvidia/params confirms:

PreserveVideoMemoryAllocations: 1
  TemporaryFilePath: "/var/tmp"

I also switched PRIME mode from full NVIDIA mode to on-demand:

prime-select query

Output:

on-demand

But suspend still freezes in the same place.

Loaded relevant modules:

nvidia_uvm
  nvidia_drm
  nvidia_modeset
  nvidia
  amdgpu
  rtw89_8852ae
  rtw89_8852a
  rtw89_pci
  rtw89_core
  btusb
  bluetooth

There are also Realtek WiFi firmware/driver errors in recent logs:

rtw89_8852ae 0000:03:00.0: FW status = 0x44001100
  rtw89_8852ae 0000:03:00.0: FW BADADDR = 0xee00
  rtw89_8852ae 0000:03:00.0: SER catches error: 0x1000
  rtw89_8852ae 0000:03:00.0: firmware failed to ack for leaving ps mode
  rtw89_8852ae 0000:03:00.0: SER catches error: 0x4000

I tried turning WiFi off and stopping Bluetooth before suspend:

nmcli radio wifi off
  sudo systemctl stop bluetooth
  sudo systemctl suspend

But it still froze. Looking at logs, Bluetooth appears to have been restarted automatically by wireplumber/blueman right before suspend, so I’m not sure that test fully isolated the Realtek device.

One failed attempt showed:

NetworkManager: manager: rfkill: Wi-Fi hardware radio set disabled
  systemd: Stopping bluetooth.service - Bluetooth service...
  systemd: Stopped bluetooth.service - Bluetooth service.
  dbus-daemon: Activating via systemd: service name='org.bluez'
  systemd: Starting bluetooth.service - Bluetooth service...
  systemd: Started bluetooth.service - Bluetooth service.
  blueman-applet: adapter powered on while in off state, turning bluetooth on
  ...
  kernel: PM: suspend entry (s2idle)

  Sleep targets are not masked:

  systemctl is-enabled sleep.target suspend.target hibernate.target hybrid-sleep.target

Output:

static
  static
  static
  static

Things already tried:

1. Changed between deep and s2idle suspend modes.
2. Enabled NVIDIA suspend/resume/hibernate systemd services.
3. Verified NVIDIA PreserveVideoMemoryAllocations and TemporaryFilePath.
4. Switched PRIME mode to on-demand.
5. Tried WiFi off and Bluetooth stopped before suspend.
6. Checked for inhibitors; no persistent blocker found.

Current behavior:

• Lid close: screen goes black, power light remains on, system stalls.
• sudo systemctl suspend: same behavior.
• No successful resume.
• No "PM: suspend exit" in journal.
• Requires hard power-off.

My main questions:

1. How can I identify which device/driver is hanging after PM: suspend entry (s2idle)?
2. Could this be a kernel 7.0.0-15-generic regression with rtw89_8852ae, NVIDIA, or AMD suspend?
3. What is the correct way to fully isolate the Realtek RTL8852AE WiFi/Bluetooth module before suspend?
4. Are there known rtw89_pci module options for suspend issues, such as disabling ASPM or CLKREQ?
5. Should I boot and pin an older kernel such as 6.17.0-23-generic if suspend works there?

I am looking for a proper debugging path or workaround.

The microphone of my laptop Lenovo Ideapad 330 running Ubuntu 22.04 doesn't work, there is no hardware issue. Is it a driver's problem?

Currently suffering an outage (#1567065), but status page shows everything green, because this service is not included on that page.

I'm trying to (semi-)daily drive Ubuntu on HP Pavillion x360 Convertible. Every few days I get a functional freeze to which only REISUB is a solution. Once there also was a "dbus.service: systemd-oomd killed 44 process(es) in this unit" and back to login screen. There are minor issues, too. Please help me diagnose. I'm using info at https://last9.io/blog/ubuntu-crash-logs/ to look for logs.

I have around 20 years of intermittent experience with Linux, rather bumpy.

It's a dual-boot with Windows 10, the HDD was upgraded to SSD.

# System Details Report

Hardware information:

• Hardware model: HP HP Pavilion x360 Convertible

• Memory: 8.0 GiB

• Processor: Intel Core i5-7200U × 4

• Graphics: Intel HD Graphics 620 (KBL GT2)

• Disk capacity: 1.0 TB

Software information:

• Firmware version: F.40

• OS name: Ubuntu 25.10

• OS build: (null)

• OS type: 64-bit

• GNOME version: 49

• Windowing system: Wayland

• Kernel version: Linux 6.17.0-29-generic

I've been having issues with Ubuntu gdb for a bit more than a week, and I have no idea who else to contact. It hangs on debuginfo fetching, because the server doesn't respond. I've tried pinging debuginfod.ubuntu.com, and end up with 100% packet loss. I can unset DEBUGINFOD, and then it works. There's no trace of that server on the Canonical status page, do you know who I could contact?

Thanks,

I'm trying to install Linux mint onto my old HP touch smart 520,pc. Ivydone the drive flashing stuff but the computer won't boot from its own HD. I'm assuming it's something to do with the bios settings? Can someone help?

ich kann leider nicht aktualisieren. Die Erst-Installation erfolgte ohne die UEFI Berücksichtigung soweit ich mich erinnere. Boot/efi ist aber eingehängt...Das Kontextmenü erlaubt das Aushängen...Kann jemand helfen? Ich möchte eine Neuinstallation vermeiden...Siehe Screenshot. Ich bin normaler Anwender...Danke schonmal.

Gruß Ralph

Trying to install Ubuntu on Samsung NP930QDB-KD3US, the installation copies files and so forth normally until a fatal error that grub-install fails.

There is no dual-boot, and Windows was removed.

I tried this with Ubuntu 24.04 and 26.04. I tried with full-disk encryption and without it. I tried numerous setting changes in CMOS/BIOS, including making sure Secure Boot was disabled.

Under 24.04, I tried formatting the internal volume /dev/nvme0n with a 256MB EFI partition as /dev/nvme0n1, a 2GB /boot as /dev/nvme0n2, and a 512GB / as /dev/nvme0n3. Under 26.04, the installer automatically assigned EFI to /dev/nvme0n2 when creating /boot as /dev/nvme0n1, but the configuration was otherwise the same.

I tried both installing GRUB to /dev/nvme01n and to the EFI partition.

I tried manually overwriting the first gigabyte of the volume

dd of=/dev/nvme01n if=/dev/zero bs=1M count=1024

What totally mystifies me is that MX Linux (MX-25.1_Xfce_ahs_x64) installs and works with no trouble; it is based on Debian 13.3 (trixie). Whatever the problem is must be specific to Ubuntu.

tl;dr how do I specify a user and password within a wget .wgetrc file for a specific website?

I want to create a ~/.wgetrc file for wget that stores a user and password, e.g.

user=user1
password=s3cr3tPass

But this username and password is only for website www.website.com. How can I modify the ~/.wgetrc so that this authentication data is only used when communicating with URLs with hostname www.website.com?

In my case, I cannot use the password on the command-line, so the pass value must be stored in some file which is loaded by wget.

I have a question concerning the creation of a customized live CD. I have already found and followed the advice from the 'creating a custom live CD from scratch' page, but that was years ago and I found it to be quite a hassle.

I switched to Debian a while back after a system drive crash because I wanted to try the root distro of Ubuntu and the likes. I found its live-build package a very handy, simple and powerful tool to create customized Debian live CDs.

I use the live-build tool to create a clone (package-wise, with some custom config files added) of my current running system so I can reinstall it and have everything I use ready without the hassle of remembering and reinstalling everything after I install a new computer (or when I mess up my current install, which almost never happens anymore due to 20 years of Linux experience).

I discovered Ubuntu also has the live-build package and I found an entry on an Ubuntu dev website mentioning that they were switching from their in-house script to live-build (This was back in 2011).

I installed Lubuntu in a VM and installed live-build, but no matter how I configure the auto/config script, the process keeps quitting on me due to errors. lb config runs fine, but live-build build keeps spitting out errors.

The first error is due to start-stop-daemon not being installed. After installing this manually in the chroot (it's part of the dpkg package, but does not get auto-installed during bootstrap / creation of the base system chroot for whatever reason I cannot seem to discover) I encountered the second error.

The second error is:

'cp: cannot stat 'chroot/boot/.bin': No such file or directory'

I have no idea what the live-build script is even attempting to do here, besides that is happens right after it starts installing memtest.

Now I am wondering: am I doing it wrong? Did I misconfigure something? Or is the live-build script in Ubuntu broken, as someone on another webpage said? (I cannot find that source at the moment, so there's no link, sorry).

How are the Ubuntu devs building their live CDs nowadays? Do they still use live-build? What configuration do they use, and where can I find that configuration?

What's working thanks to @daniel-t:

#!/bin/bash

sudo XDG_RUNTIME_DIR="/run/user/$(id -u admn)" pw-play -p /usr/share/sounds/Yaru/stereo/desktop-login.oga

# or

XDG_RUNTIME_DIR=/run/user/1000 pw-play -p /usr/share/sounds/Yaru/stereo/desktop-login.oga

exit;

May 22 updates: These commands that were giving errors yesterday, are working just fine today.

sudo -u admn XDG_RUNTIME_DIR="/run/user/$(id -u admn)"  pw-play -p /usr/share/sounds/Yaru/stereo/desktop-login.oga

# or

run0 -u admn pw-play -p /usr/share/sounds/Yaru/stereo/desktop-login.oga

Also, stat /run/user/$(id -u admn)/pipewire-0 displays proper output instead of error as detailed below. I have not made any changes to the system at all.

OS: Ubuntu 26.04 Resolute

Desktop: MATE Desktop Environment 1.28.2

Installation: Fresh (Not upgraded from any previous version). Installed Ubuntu Server 26.04 and then installed MATE Desktop on it.

Note: Sound is working just fine. I can play any audio or video file through VLC just fine.

I can even play sound from a terminal with the following command just fine:

pw-play -p /usr/share/sounds/Yaru/stereo/desktop-login.oga

And still, I get this error:

error: pw_context_connect() failed: Host is down

When the same command is run from a script with sudo:

#!/bin/bash

sudo -u $USER pw-play -p /usr/share/sounds/Yaru/stereo/desktop-login.oga;

# or

pw-play -p /usr/share/sounds/Yaru/stereo/desktop-login.oga;

# or

sudo -u admn XDG_RUNTIME_DIR="/run/user/$(id -u admn)"  pw-play -p /usr/share/sounds/Yaru/stereo/desktop-login.oga;


exit;

sudo /home/admn/Downloads/test.sh

Output:
error: pw_context_connect() failed: Host is down

Pipewire and related command status:

strace -ff pw-play -p /usr/share/sounds/Yaru/stereo/desktop-login.oga |& grep 'connect.*pipewire'

Note: This did play the sound.

Output:
[pid  5345] connect(14, {sa_family=AF_UNIX, sun_path="/run/user/1000/pipewire-0"}, 28) = 0

stat /run/user/$(id -u admn)/pipewire-0

May 22 output:
File: /run/user/1000/pipewire-0
  size: 0           Blocks: 0          IO Block: 4096   socket
Device: 0,62    Inode: 97          Links: 1
Access: (0666/srw-rw-rw-)  Uid: ( 1000/    admn)   Gid: ( 1000/    admn)
Access: 2026-05-22 21:33:40.209419760 +0530
Modify: 2026-05-22 21:33:40.063359704 +0530
Change: 2026-05-22 21:33:40.063359704 +0530
 Birth: 2026-05-22 21:33:40.063336134 +0530


May 21 output:
stat: cannot stat '/run/user/1000/pipewire-0': No such file or directory (os error 2)

ps u -C pipewire

Output:
USER            PID     %CPU    %MEM       VSZ          RSS     TTY      STAT   START   TIME    COMMAND
admn            2307    0.0     0.1        104248       13652   ?        S<sl   06:44   0:02    /usr/bin/pipewire
admn            2337    0.0     0.0        82224        5596    ?        Ssl    06:44   0:00    /usr/bin/pipewire -c filter-chain.conf

pw-cli info 0

Output:
    id: 0
    permissions: r-xm-
    type: PipeWire:Interface:Core/4
    cookie: 3952953688
    user-name: "admn"
    host-name: "um26"
    version: "1.6.2"
    name: "pipewire-0"
*   properties:
*       config.name = "pipewire.conf"
*       application.name = "pipewire"
*       application.process.binary = "pipewire"
*       application.language = "C.UTF-8"
*       application.process.id = "2334"
*       application.process.user = "admn"
*       application.process.host = "um26"
*       cpu.vm.name = "oracle"
*       link.max-buffers = "16"
*       core.daemon = "true"
*       core.name = "pipewire-0"
*       default.clock.min-quantum = "1024"
*       cpu.max-align = "16"
*       default.clock.rate = "48000"
*       default.clock.quantum = "1024"
*       default.clock.max-quantum = "2048"
*       default.clock.quantum-limit = "8192"
*       default.clock.quantum-floor = "4"
*       default.video.width = "640"
*       default.video.height = "480"
*       default.video.rate.num = "25"
*       default.video.rate.denom = "1"
*       log.level = "2"
*       clock.power-of-two-quantum = "true"
*       mem.warn-mlock = "false"
*       mem.allow-mlock = "true"
*       settings.check-quantum = "false"
*       settings.check-rate = "false"
*       object.id = "0"
*       object.serial = "0"

pw-cli

Output:
Welcome to PipeWire version 1.6.2. Type 'help' for usage.
>> remote 0 is named 'pipewire-0'
Error: "unsupported type PipeWire:Interface:SecurityContext"
Error: "unsupported type PipeWire:Interface:Profiler"
remote 0 node 55 changed
remote 0 node 55 changed
remote 0 port 34 changed
remote 0 port 47 changed
remote 0 port 46 changed
remote 0 port 45 changed
remote 0 node 55 changed
pipewire-0>> q

wpctl status

Output:
PipeWire 'pipewire-0' [1.6.2, admn@um26, cookie:3470822089]
 └─ Clients:
        33. pipewire                            [1.6.2, admn@um26, pid:2338]
        35. WirePlumber                         [1.6.2, admn@um26, pid:2336]
        40. WirePlumber [export]                [1.6.2, admn@um26, pid:2336]
        58. mate-settings-daemon                [1.6.2, admn@um26, pid:3075]
        59. marco                               [1.6.2, admn@um26, pid:3132]
        60. ayatana-indicator-sound-service     [1.6.2, admn@um26, pid:3922]
        61. ayatana-indicator-sound-service     [1.6.2, admn@um26, pid:3922]
        62. Blueman                             [1.6.2, admn@um26, pid:3903]
        63. xdg-desktop-portal                  [1.6.2, admn@um26, pid:3993]
        64. mate-menu.py                        [1.6.2, admn@um26, pid:3799]
        65. Terminal                            [1.6.2, admn@um26, pid:17192]
        66. Indicator Applet Complete           [1.6.2, admn@um26, pid:3805]
        67. wnck-applet                         [1.6.2, admn@um26, pid:3801]
        69. Rhythmbox                           [1.6.2, admn@um26, pid:14616]
        70. Caja                                [1.6.2, admn@um26, pid:3792]
        79. wpctl                               [1.6.2, admn@um26, pid:21044]

Audio
 ├─ Devices:
 │      48. Built-in Audio                      [alsa]
 │  
 ├─ Sinks:
 │  *   55. Built-in Audio Analog Stereo        [vol: 1.00]
 │  
 ├─ Sources:
 │  *   56. Built-in Audio Analog Stereo        [vol: 1.00]
 │  
 ├─ Filters:
 │  
 └─ Streams:

Video
 ├─ Devices:
 │  
 ├─ Sinks:
 │  
 ├─ Sources:
 │  
 ├─ Filters:
 │  
 └─ Streams:

Settings
 └─ Default Configured Devices:

Any help is greatly appreciated.

image Video After downloading files (archives, images, deb packages), kernel panic appears in the web browser and anywhere on the disk. Tell me how to fix it. Everything works fine, but because of this it is completely impossible for me to use my Ubuntu 26.04.

Specs:

• Ubuntu 26.04

• Intel 3556U

• 8GB RAM

• 480GB SATA SSD ROM

Applications could be launched in 25.10 from the desktop. After upgrading to 26.04 all the desktop shortcuts have a red cross and at right-click there isn't any allow launch option anymore. The files do exist and were unmodified. Do you have any suggestion for the root cause of it or how to fix it? Changing files chmod to +x does not fix it, but all files have an x bit set.

The desktop files are in ~/Desktop and when opening the item from the desktop with another application (i.e Gedit) the file can be edited.

I'm running Ubuntu 26.04 LTS, 64-bit, Linux 7.0.0-15-generic, gnome version 50.

And using an NVIDIA GeForce RTX 3060.

+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 595.71.05              Driver Version: 595.71.05      CUDA Version: 13.2     |
|-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf            Pwr:Usage/Cap |           Memory-Usage | GPU-Util  Compute M. |
|                                         |                        |               MIG M. |
|=========================================+========================+======================|
|   0  NVIDIA GeForce RTX 3060        Off |   00000000:01:00.0  On |                  N/A |
|  0%   37C    P8              12W / 170W |     606MiB / 12288MiB  |     0%      Default |
|                                         |                        |                  N/A |
+-----------------------------------------+------------------------+----------------------+
                                                                                         
+-----------------------------------------------------------------------------------------+
| Processes:                                                                              |
|  GPU   GI   CI        PID   Type   Process name                              GPU Memory |
|        ID   ID                                                               Usage      |
|=========================================================================================|
|    0  N/A  N/A       4885      G   /usr/bin/gnome-shell                         123MiB |
|    0  N/A  N/A       5266      G   /usr/bin/Xwayland                              6MiB |
|    0  N/A  N/A      26226      G   ./steamwebhelper                              22MiB |
|    0  N/A  N/A      26254    C+G   ...am/ubuntu12_64/steamwebhelper               7MiB |
|    0  N/A  N/A      28378      G   ...284/usr/share/discord/Discord              86MiB |
|    0  N/A  N/A      44030      G   .../8107/usr/lib/firefox/firefox             182MiB |
|    0  N/A  N/A      46395    C+G   ptyxis                                         46MiB |
+-----------------------------------------------------------------------------------------+

I downloaded and installed the new Ubuntu, onto a newer computer. Installed Steam, and was met with the message:

"32-bit NVIDIA driver files were not found on your host system. It's best you install them for the best experience."

It then gives some terminal commands.

sudo dpkg --add-architecture i386
sudo apt update
sudo apt install libnvidia-gl-595:i386

Enter the commands in that order and it gives me this response:

@DigitalStorm-D:~$ sudo dpkg --add-architecture i386
@DigitalStorm-D:~$ sudo apt update
Hit:1 http://security.ubuntu.com/ubuntu resolute-security InRelease
All packages are up to date.
@DigitalStorm-D:~$ sudo apt install libnvidia-gl-595:i386
Solving dependencies... Error!
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

Unsatisfied dependencies:
 libnvidia-gl-595:i386 : Depends: libc6:i386 (>= 2.34) but it is not installable
                         Depends: libdrm2:i386 (>= 2.4.75) but it is not installable
                         Depends: libgbm1:i386 (>= 17.1.0~rc2) but it is not installable
                         Depends: libwayland-client0:i386 (>= 1.20.0) but it is not installable
                         Depends: libx11-6:i386 but it is not installable
                         Depends: libx11-xcb1:i386 but it is not installable
                         Depends: libxcb-dri3-0:i386 (>= 1.13) but it is not installable
                         Depends: libxcb-present0:i386 but it is not installable
                         Depends: libxcb1:i386 (>= 1.12) but it is not installable
                         Depends: libxext6:i386 but it is not installable
                         Depends: libnvidia-egl-wayland1:i386 but it is not installable
Error: Unable to satisfy dependencies. Reached two conflicting assignments:
   1. libnvidia-gl-595:i386=595.71.05-0ubuntu0.26.04.1 is selected for install
   2. libnvidia-gl-595:i386 Depends libc6:i386 (>= 2.34)
      but none of the choices are installable:
      [no choices]
@DigitalStorm-D:~$

It gives a link to github, but it's just the same instructions.

How do I fix these dependencies errors?

Update 1: Trying

grep -v '^#' /etc/apt/sources.list.d/ubuntu.sources

Results in the following:

@DigitalStorm-D:~$ grep -v '^#' /etc/apt/sources.list.d/ubuntu.sources
Types: deb
URIs: http://security.ubuntu.com/ubuntu/
Suites: resolute-security
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

Update 2: tried to install OBS, following the following commands:

sudo add-apt-repository ppa:obsproject/obs-studio
sudo apt update
sudo apt install obs-studio

However it throws a similar error.

@DigitalStorm-D:~$ sudo apt install obs-studio
Solving dependencies... Error!  
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

Unsatisfied dependencies:
 obs-studio : Depends: libavdevice62 (>= 7:8.0.1) but it is not installable
              Depends: libluajit-5.1-2 (>= 2.0.4) but it is not installable or
                       libluajit-5.1-2 (>= 2.1.0+openresty) but it is not installable
              Depends: libmbedtls21 (>= 3.6.0) but it is not installable
              Depends: libmbedx509-7 (>= 3.6.0) but it is not installable
              Depends: libopengl0 but it is not installable
              Depends: libqrcodegencpp1 (>= 1.2.1) but it is not installable
              Depends: libqt6core6t64 (>= 6.10.2) but it is not installable
              Depends: libqt6dbus6 (>= 6.3.0) but it is not installable
              Depends: libqt6gui6 (>= 6.9.1) but it is not installable
              Depends: libqt6network6 (>= 6.1.2) but it is not installable
              Depends: libqt6svg6 (>= 6.6.0) but it is not installable
              Depends: libqt6widgets6 (>= 6.10.2) but it is not installable
              Depends: libqt6xml6 (>= 6.6.0) but it is not installable
              Depends: libsrt1.5-openssl (>= 1.5.4) but it is not installable
              Depends: libxcb-composite0 but it is not installable
              Depends: libxcb-xinerama0 but it is not installable
              Depends: qt6-wayland but it is not installable
              Depends: qt6-qpa-plugins but it is not installable
Error: Unable to satisfy dependencies. Reached two conflicting assignments:
   1. obs-studio:amd64=32.1.2-0obsproject2~resolute is selected for install
   2. obs-studio:amd64 Depends libavdevice62 (>= 7:8.0.1)
      but none of the choices are installable:
      [no choices]

I tried

@DigitalStorm-D:~$ sudo apt-get install -f
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Solving dependencies... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

And again,

sudo apt-get update
Hit:1 http://security.ubuntu.com/ubuntu resolute-security InRelease
Hit:2 https://ppa.launchpadcontent.net/obsproject/obs-studio/ubuntu resolute InRelease
Reading package lists... Done

All with the same result.

I'm a new user to Ubuntu 26.04. I'm using Ubuntu to both serve a data drive to my home network as well as controlling Ubuntu (so I can learn more about it) via remote control from the MacBook. It works very nicely when it's working, but anytime I reboot I must connect a keyboard and mouse to the Ubuntu PC and manually go into System/Remote Desktop and select UNLOCK and enter my password for the system to allow remote connection on the Mac. I should mention I'm using a Mac application now called "Windows App" to initiate that remote connection.

What I really would prefer is to just reboot and be able to connect the remote desktop. The Ubuntu PC already auto logs in, but not the remote desktop screenshare.

I have a Ubuntu OS 24.04 LTS and it has a RTL8192EE PCIe wireless network adapter.

When I updated to 26.04 from terminal using sudo do-release-update -d my wireless adapter stopped working, and I have no clue why. I wonder that the drivers from that adapter are updated just for Windows, because when you visit the drivers website (https://www.realtek.com/Download/List?cate_id=672&menu_id=297) it only shows the Windows drivers, not Linux or others.

I tried re-scanning the drivers and making rm to reinstall them, viewing Secure Boot, rfkill bloq, NetworkManager restart.

Is changing the PCIe Adapter an option? Is there other way to solve it?

I'm really new to command line, and I'm trying to move a folder full of FASTQ files into my directory. I haven't had any luck in the terminal, so I tried moving files using GUIs (nautilus and thunar). However, I can't move any files and I've been receiving these errors:

(thunar:865): GLib-GIO-CRITICAL **: 15:17:18.061: GFileInfo created without standard::size

(thunar:865): GLib-GIO-CRITICAL **: 15:17:18.061: file ../../../gio/gfileinfo.c: line 1845 (g_file_info_get_size): should not be reached

Any ideas on how to fix this or if I'm missing something?

Edit:

I'm using Ubuntu 24.04.4 LTS I got both errors from Thunar and Nautilus I will try flatpak and the suggested lines of code.

VideoDownloadHelper stopped downloading mp4 videos on ubuntu 22.04 in the latest firefox versions 150.0.3 (64-bit) and 151.0 ( 64-bit), displaying the message:

Download failed

Sadly we failed at downloading that specific media

Test video:

https://www.youtube.com/watch?v=C0DPdy98e4c

How can I fix this?

Regards,

Albert

I had to rebuild my FLASH disk after a rebuild that used Ubuntu Server 24 first (because the DVD no longer contains the full Ubuntu Desktop configuration). Neither logout/login nor full reboot after the described removals works.

The previous successful answer was to rm -Rf ~/.cache/thumbnails/fail

from Ubuntu 24.04 File thumbnails not visible on desktop

That no longer works for me.

I sincerely hope the only workable answer now ISN'T starting from Ubuntu 22.04 and doing an online full system rebuild.

Starting an installation of Ubuntu 26.04 with full disk wipe using the graphical installer, I have an installation stuck at rsync command for 30+ minutes after an error.

rsync connection closed:

Apr 23 23:21:19 ubuntu subiquity_log.3615[8812]: curtin: Installation started. (24.04.0-193-g67962f8bb)
Apr 23 23:21:19 ubuntu subiquity_log.3615[8812]: {'WORKING_DIR': '/tmp/tmpjeokba_0/scratch',
'OUTPUT_FSTAB': '/tmp/tmpjeokba_0/state/fstab', 'OUTPUT_INTERFACES': '/tmp/tmpjeokba_0/state/
interfaces', 'OUTPUT_NETWORK_CONFIG': '/tmp/tmpjeokba_0/state/network_config', 'OUTPUT_NETWORK_STATE':
'/tmp/tmpjeokba_0/state/network_state', 'TARGET_MOUNT_POINT': '/target', 'CONFIG': '/tmp/tmpjeokba_0/
state/config'}
Apr 23 23:21:19 ubuntu subiquity_log.3615[8812]: start: cmd-install/stage-extract: writing install
sources to disk
Apr 23 23:21:19 ubuntu subiquity_log.3615[8812]: start: cmd-install/stage-extract/builtin: running
'curtin extract'
Apr 23 23:21:19 ubuntu subiquity_event.3615[3615]:    curtin command install
Apr 23 23:21:19 ubuntu subiquity_event.3615[3615]:      writing install sources to disk
Apr 23 23:21:19 ubuntu subiquity_event.3615[3615]:      running 'curtin extract'
Apr 23 23:21:20 ubuntu subiquity_log.3615[8812]: start: cmd-install/stage-extract/builtin/cmd-extract:
curtin command extract
Apr 23 23:21:20 ubuntu subiquity_log.3615[8812]: Installing sources: [{'type': 'tgz', 'uri': 'cp:///
tmp/tmp7ydka4xs/mount'}] to target at /target
Apr 23 23:21:20 ubuntu subiquity_log.3615[8812]: start: cmd-install/stage-extract/builtin/cmd-extract:
acquiring and extracting image from cp:///tmp/tmp7ydka4xs/mount
Apr 23 23:21:20 ubuntu subiquity_log.3615[8812]: Setting up Trivial Source for stack /tmp/tmp7ydka4xs/
mount
Apr 23 23:21:20 ubuntu subiquity_log.3615[8812]: Running command ['rsync', '-aXHAS', '--one-file-
system', '/tmp/tmp7ydka4xs/mount/', '.'] with allowed return codes [0] (capture=False)
Apr 23 23:21:20 ubuntu subiquity_event.3615[3615]:      curtin command extract
Apr 23 23:21:20 ubuntu subiquity_event.3615[3615]:        acquiring and extracting image from cp:///
tmp/tmp7ydka4xs/mount
Apr 23 23:21:20 ubuntu subiquity_log.3615[8812]: rsync: connection unexpectedly closed (0 bytes
received so far) [Receiver]
Apr 23 23:21:20 ubuntu subiquity_log.3615[8812]: rsync error: error in rsync protocol data stream
(code 12) at io.c(232) [Receiver=3.4.1]

Is there any way to proceed?

I've been using WSL on my work laptop and just recently I started getting store space errors, which is surprising because I have a 1TB SSD. I checked the storage settings and it shows Ubuntu 22.04.5 taking up 803GB of space, which is insane (see screenshot). On further examination, it shows that the app takes up 324 MB while the data is taking up 802 GB. I tried the repair and reset options, but nothing happened. I am unable to install any more applications on my PC because of this.

I am on Python 3.10 and would like to upgrade to 3.13.1. I have been trying to figure out how to do this, and have managed to get it installed, but it uses the python3.13 alias instead of the python alias.

After updating my Ubuntu to version 24.04, my desktop PC (Gigabyte H510M-K DDR4) can't detect audio drivers. Headphones work, but external speakers are not recognized.

~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC897 Analog [ALC897 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [PHL 271V8]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

In the Sound Settings, it only shows 'Dummy Output'. I have attempted various troubleshooting steps, including:

• sudo apt install --reinstall pulseaudio
• sudo apt install --reinstall alsa-base alsa-utils
• sudo apt install pulseaudio
• sudo apt install pavucontrol
• pulseaudio -k && sudo alsa force-reload
• sudo touch /usr/share/pipewire/media-session.d/with-pulseaudio
• systemctl --user restart pipewire-session-manager
• systemctl --user restart wireplumber pipewire pipewire-pulse
• sudo apt install pipewire-audio-client-libraries pipewire-pulse it
• sudo nano /etc/modprobe.d/alsa-base.conf
• sudo nano /etc/modprobe.d/blasklist.conf
• sudo modprobe snd-hda-intel
• Trying different options such as options snd-hda-intel model=auto and blacklist snd_soc_avs

But it did not work:

~$ sudo modprobe snd-hda-intel
~$ sudo alsa force-reload
Unloading ALSA sound driver modules: snd-seq-dummy snd-seq-midi snd-seq-midi-event snd-rawmidi snd-sof-pci-intel-tgl snd-sof-intel-hda-common snd-sof-intel-hda snd-sof-pci snd-sof-xtensa-dsp snd-sof snd-sof-utils snd-soc-hdac-hda snd-soc-acpi-intel-match snd-soc-acpi snd-hrtimer snd-seq snd-seq-device snd-sof-intel-hda-mlink snd-hda-codec-realtek snd-hda-codec-generic snd-hda-ext-core snd-soc-core snd-hda-codec-hdmi snd-compress snd-pcm-dmaengine snd-hda-intel snd-intel-dspcfg snd-intel-sdw-acpi snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-timer (failed: modules still loaded: snd-hrtimer snd-seq snd-seq-device snd-sof-intel-hda-mlink snd-hda-codec-realtek snd-hda-codec-generic snd-hda-ext-core snd-soc-core snd-hda-codec-hdmi snd-compress snd-pcm-dmaengine snd-hda-intel snd-intel-dspcfg snd-intel-sdw-acpi snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-timer).
Loading ALSA sound driver modules: snd-seq-dummy snd-seq-midi snd-seq-midi-event snd-rawmidi snd-sof-pci-intel-tgl snd-sof-intel-hda-common snd-sof-intel-hda snd-sof-pci snd-sof-xtensa-dsp snd-sof snd-sof-utils snd-soc-hdac-hda snd-soc-acpi-intel-match snd-soc-acpi snd-hrtimer snd-seq snd-seq-device snd-sof-intel-hda-mlink snd-hda-codec-realtek snd-hda-codec-generic snd-hda-ext-core snd-soc-core snd-hda-codec-hdmi snd-compress snd-pcm-dmaengine snd-hda-intel snd-intel-dspcfg snd-intel-sdw-acpi snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-timer

~$ pulseaudio --kill
~$ journalctl --user -u pulseaudio.service | awk '{print $5 "\t" $6}'

systemd[3097]:  Starting
pulseaudio[14920]:  Daemon
pulseaudio[14920]:  pa_pid_file_create()
systemd[3097]:  pulseaudio.service:
systemd[3097]:  pulseaudio.service:
systemd[3097]:  Failed
systemd[3097]:  pulseaudio.service:

my computer goes to busybox and (apparently) the keyboard is stuck on hebrew, therefore, i can not enter lowercase english letters and hebrew coms out as squares, how can I switch to English?

I am running xrdp on my Ubuntu 18.04 computer. I got 3 users. Two is working well. They can connect from Windows 10 rdp without any problem. But the last one does fail with a "Connection problem, giving up" message. And it is that user I use myself.

I have spend a lot of time researching and looking at log-files without any luck. I did remove and install xrdp again - no change.

I might have done something to corrupt the settings for this user. It did work for some time. If I only could somehow reset the user.

The user is not logged on locally. I use gnome desktop. From inxi for one of the functioning users i got this info:

Desktop: Gnome 3.28.2 Distro: Ubuntu 18.04.1 LTS Display Server: X.Org 1.19.6

EDIT

I compared an OK user with the malfunctioning user by looking at /var/log/xrdp.log. For the OK user, the log continues after:

 [DEBUG] xrdp_wm_log_msg: started connecting

while the other just gets a bunch of:

 [DEBUG] Closed socket 17 (AF_UNIX)

and after a while these lines appears:

 xrdp_wm_log_msg: connection problem, giving up
 xrdp_wm_log_msg: some problem

There are some differences in .xorgxrdp.10.log

Bad one:

  [ 22202.422] (II) Loading /usr/lib/x86_64-linux-gnu/nvidia/xorg/libglx.so
  [ 22202.425] (II) Module glx: vendor="NVIDIA Corporation"
  [ 22202.425]    compiled for 4.0.2, module version = 1.0.0
  [ 22202.425]    Module class: X.Org Server Extension
  [ 22202.425] (II) NVIDIA GLX Module  390.48  Wed Mar 21 23:42:56 PDT 2018
    ...
  [ 22202.428] (EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not found)

Good one

[ 24242.838] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 24242.839] (II) Module glx: vendor="X.Org Foundation"
[ 24242.839]    compiled for 1.19.6, module version = 1.0.0
[ 24242.839]    ABI class: X.Org Server Extension, version 10.0
...
[ 24242.843] (II) AIGLX: Screen 0 is not DRI2 capable
[ 24242.843] (EE) AIGLX: reverting to software rendering
[ 24242.869] (II) IGLX: enabled GLX_MESA_copy_sub_buffer
[ 24242.870] (II) IGLX: Loaded and initialized swrast
[ 24242.870] (II) GLX: Initialized DRISWRAST GL provider for screen 0

Edit xrdp.ini added

cat /etc/xrdp/xrdp.ini
[Globals]
; xrdp.ini file version number
ini_version=1

; fork a new process for each incoming connection
fork=true
; tcp port to listen
port=3389
; 'port' above should be connected to with vsock instead of tcp
use_vsock=false
; regulate if the listening socket use socket option tcp_nodelay
; no buffering will be performed in the TCP stack
tcp_nodelay=true
; regulate if the listening socket use socket option keepalive
; if the network connection disappear without close messages the connection will be closed
tcp_keepalive=true
#tcp_send_buffer_bytes=32768
#tcp_recv_buffer_bytes=32768

; security layer can be 'tls', 'rdp' or 'negotiate'
; for client compatible layer
security_layer=negotiate
; minimum security level allowed for client
; can be 'none', 'low', 'medium', 'high', 'fips'
crypt_level=high
; X.509 certificate and private key
; openssl req -x509 -newkey rsa:2048 -nodes -keyout key.pem -out cert.pem -days 365
certificate=
key_file=
; set SSL protocols
; can be comma separated list of 'SSLv3', 'TLSv1', 'TLSv1.1', 'TLSv1.2'
ssl_protocols=TLSv1, TLSv1.1, TLSv1.2
; set TLS cipher suites
#tls_ciphers=HIGH

; Section name to use for automatic login if the client sends username
; and password. If empty, the domain name sent by the client is used.
; If empty and no domain name is given, the first suitable section in
; this file will be used.
autorun=

allow_channels=true
allow_multimon=true
bitmap_cache=true
bitmap_compression=true
bulk_compression=true
#hidelogwindow=true
max_bpp=32
new_cursors=true
; fastpath - can be 'input', 'output', 'both', 'none'
use_fastpath=both
; when true, userid/password *must* be passed on cmd line
#require_credentials=true
; You can set the PAM error text in a gateway setup (MAX 256 chars)
#pamerrortxt=change your password according to policy at http://url

;
; colors used by windows in RGB format
;
blue=009cb5
grey=dedede
#black=000000
#dark_grey=808080
#blue=08246b
#dark_blue=08246b
#white=ffffff
#red=ff0000
#green=00ff00
#background=626c72

;
; configure login screen
;

; Login Screen Window Title
#ls_title=My Login Title

; top level window background color in RGB format
ls_top_window_bg_color=009cb5

; width and height of login screen
ls_width=350
ls_height=430

; login screen background color in RGB format
ls_bg_color=dedede

; optional background image filename (bmp format).
#ls_background_image=

; logo
; full path to bmp-file or file in shared folder
ls_logo_filename=
ls_logo_x_pos=55
ls_logo_y_pos=50

; for positioning labels such as username, password etc
ls_label_x_pos=30
ls_label_width=60

; for positioning text and combo boxes next to above labels
ls_input_x_pos=110
ls_input_width=210

; y pos for first label and combo box
ls_input_y_pos=220

; OK button
ls_btn_ok_x_pos=142
ls_btn_ok_y_pos=370
ls_btn_ok_width=85
ls_btn_ok_height=30

; Cancel button
ls_btn_cancel_x_pos=237
ls_btn_cancel_y_pos=370
ls_btn_cancel_width=85
ls_btn_cancel_height=30

[Logging]
LogFile=xrdp.log
LogLevel=DEBUG
EnableSyslog=true
SyslogLevel=DEBUG
; LogLevel and SysLogLevel could by any of: core, error, warning, info or debug

[Channels]
; Channel names not listed here will be blocked by XRDP.
; You can block any channel by setting its value to false.
; IMPORTANT! All channels are not supported in all use
; cases even if you set all values to true.
; You can override these settings on each session type
; These settings are only used if allow_channels=true
rdpdr=true
rdpsnd=true
drdynvc=true
cliprdr=true
rail=true
xrdpvr=true
tcutils=true

; for debugging xrdp, in section xrdp1, change port=-1 to this:
#port=/tmp/.xrdp/xrdp_display_10

; for debugging xrdp, add following line to section xrdp1
#chansrvport=/tmp/.xrdp/xrdp_chansrv_socket_7210


;
; Session types
;

; Some session types such as Xorg, X11rdp and Xvnc start a display server.
; Startup command-line parameters for the display server are configured
; in sesman.ini. See and configure also sesman.ini.
[Xorg]
name=Xorg
lib=libxup.so
username=ask
password=ask
ip=127.0.0.1
port=-1
code=20

[X11rdp]
name=X11rdp
lib=libxup.so
username=ask
password=ask
ip=127.0.0.1
port=-1
xserverbpp=24
code=10

[X11rdp2]
name=Custom
lib=libvnc.so
username=askallan
password=ask
ip=127.0.0.1
port=ask5901

[Xvnc]
name=Xvnc
lib=libvnc.so
username=ask
password=ask
ip=127.0.0.1
port=-1
#xserverbpp=24
#delay_ms=2000

[console]
name=console
lib=libvnc.so
ip=127.0.0.1
port=5900
username=na
password=ask
#delay_ms=2000

[vnc-any]
name=vnc-any
lib=libvnc.so
ip=ask
port=ask5900
username=na
password=ask
#pamusername=asksame
#pampassword=asksame
#pamsessionmng=127.0.0.1
#delay_ms=2000

[sesman-any]
name=sesman-any
lib=libvnc.so
ip=ask
port=-1
username=ask
password=ask
#delay_ms=2000

[neutrinordp-any]
name=neutrinordp-any
lib=libxrdpneutrinordp.so
ip=ask
port=ask3389
username=ask
password=ask

; You can override the common channel settings for each session type
#channel.rdpdr=true
#channel.rdpsnd=true
#channel.drdynvc=true
#channel.cliprdr=true
#channel.rail=true
#channel.xrdpvr=true

When I try to start MongoDB, I get this error:

# mongo  
MongoDB shell version: 3.2.6
connecting to: test
2016-05-21T16:14:31.183+0300 W NETWORK  [thread1] Failed to connect to      127.0.0.1:27017, reason: errno:111 Connection refused
2016-05-21T16:14:31.183+0300 E QUERY    [thread1] Error: couldn't connect $ to server 127.0.0.1:27017, connection attempt failed :
connect@src/mongo/shell/mongo.js:229:14
@(connect):1:6

exception: connect failed

After that I do some research and learned that I firstly need to start MongoDB server with mongod command. But when I try that, I get an error again: try that, i get an error again:

# mongod
2016-05-21T16:19:15.410+0300 I CONTROL  [initandlisten] MongoDB starting : pid=32019 port=27017 dbpath=/data/db 64-bit host=ibrahim-Inspiron-3542
2016-05-21T16:19:15.410+0300 I CONTROL  [initandlisten] db version v3.2.6
2016-05-21T16:19:15.410+0300 I CONTROL  [initandlisten] git version:    05552b562c7a0b3143a729aaa0838e558dc49b25
2016-05-21T16:19:15.410+0300 I CONTROL  [initandlisten] OpenSSL version:   OpenSSL 1.0.2g-fips  1 Mar 2016
2016-05-21T16:19:15.410+0300 I CONTROL  [initandlisten] allocator: tcmalloc
2016-05-21T16:19:15.410+0300 I CONTROL  [initandlisten] modules: none
2016-05-21T16:19:15.410+0300 I CONTROL  [initandlisten] build environment:
2016-05-21T16:19:15.410+0300 I CONTROL  [initandlisten]     distmod:        ubuntu1404
2016-05-21T16:19:15.410+0300 I CONTROL  [initandlisten]     distarch: x86_64
2016-05-21T16:19:15.410+0300 I CONTROL  [initandlisten]     target_arch: x86_64
2016-05-21T16:19:15.410+0300 I CONTROL  [initandlisten] options: {}
2016-05-21T16:19:15.451+0300 I STORAGE  [initandlisten] exception in initAndListen: 29 Data directory /data/db not found., terminating
2016-05-21T16:19:15.451+0300 I CONTROL  [initandlisten] dbexit:  rc: 100

I try start mongod service on console:

# service mongod start
Failed to start mongod.service: Unit mongod.service not found.

What I need to do?

My English is not so much good, please answer this question with a simple English.

I used the Universal USB Installer to put Ubuntu on a flash drive, and my computer booted from it just fine, but I decided to try a few other versions of Linux before installing it. I reformatted the flash drive and then put Mint on it, but now the computer would not boot from the drive. After this I put Ubuntu back onto it and still the computer would not boot from the drive.

I'm almost entirely certain that I did everything the same when putting Ubuntu onto the flash drive that I did the first time. I'm at a loss for what to do because I can't find any differences between now and when it was working.

This is what is displayed when I attempt to boot from the flash drive. As you can see it recognizes the flash drive, but it does not boot.

Pri. Slave Disk : None                      DDR2 at Bank(s) : 0 2
____________________________________________________________________________________

USB Storage Device : SanDisk Cruzer Glide  1.27
SATA Channel 1 . Master Disk : LBA, ATA 100, 160GB
SATA Channel 2 . Master Disk : DVD-RW, ATA 100

SATA Channel 1 . Master Disk HDD S.M.A.R.T. capability .... Disabled

PCI device listing ...
Bus No. Device No. Func No. Vendor/Device Class Device Class                IRQ
____________________________________________________________________________________
   0         2         0    8086   2772   0300  Display Cntrlr               10
   0        27         0    8086   27D8   0403  Multimedia Device            10
   0        29         0    8086   27C8   0C03  USB 1.0/1.1 UHCI Cntrlr      12
   0        29         1    8086   27C9   0C03  USB 1.0/1.1 UHCI Cntrlr      15
   0        29         2    8086   27CA   0C03  USB 1.0/1.1 UHCI Cntrlr       5
   0        29         3    8086   27CB   0C03  USB 1.0/1.1 UHCI Cntrlr      10
   0        29         7    8086   27CC   0C03  USB 2.0 EHCI Cntrlr          12
   0        31         1    8086   27DF   0101  IDE Cntrlr                   14
   0        31         2    8086   27C0   0101  IDE Cntrlr                   15
   0        31         3    8086   27DA   0C05  SMBus Cntrlr                 15
   0        31         0    10EC   8139   0200  Network Cntrlr               11
   1         5                                  ACPI Controller               9