While upgrading from 25.10 to 26.4 I had power failure. Trying to continue I was prompted to partial upgrade which, when tried, is shutting out the upgrade procedure. Messages popping up when trying Partial Upgrade but nothing happens.

i'm playing a game called Mordhau, and there is a mod to play the lute. I tried installing it but i never succeeded. Anyone who can help me?

I was trying to download one SAP application but i got the error message that I have no space left in /var/tmp. After some search, I found that the /var/tmp/opt directory is the cause of this.

One file in particular is kern.error:

• kern.error inside /var/tmp/opt = 4.9 GB

• cache = 741 MB

• lib = 2.0 GB

• log = 1.4 GB

Can I delete those files inside /var/tmp directory or is it not allowed?

I have a question concerning the creation of a customized livecd.
I have already found and followed the advice from the 'creating a custom livecd 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 and found its live-build package a very handy, simple and powerfull tool to create customized debian livecds.

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 re-installing 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 site mentioning that they were switching from their in-house script to live-build. This was back in 2011.
(https://wiki.ubuntu.com/FoundationsTeam/Specs/SwitchToLiveBuild)

So 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 lb build keeps spitting 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 base system chroot for whatever reason I cannot seem to discover) I encounter 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? (cannot find that source atm so no link, sorry).

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

I have installed Ubuntu 24.04 on a new system Lenovo M90a Pro Gen 4 Desktop (ThinkCenter). Everything works fine except the sound from internal audio speakers. I can hear sound through Bluetooth headphones though. I have tried other LTS versions of Ubuntu including the latest Ubuntu 26.04. My sound cards and audio drivers are detected properly, but there is no sound. I tried every possible solution from ChatGPT and Gemini, but nothing worked. I am attaching the screenshots. Does anyone have any thoughts?

Unfortunately Lenovo denied support as they said they do not provide support for all OSs although my new machine is still under warranty. They only provide support for those that come with Ubuntu preinstalled.

Chrome crashes with "FD ownership violation" and exit_code=133 on Ubuntu 20.04, kernel 5.15.0-139, Intel UHD 620. Started after system reboot today. VS Code also broken. Firefox works fine. Error: "Crashing due to FD ownership violation" when running chrome --type=gpu-process --no-sandbox

I have used ubuntu on servers for many years but the file rights are still playing with my brain.

I don´t think I use ACL.s

I use samba and php running in a docker container with the folder mapped for read and write.

in a folder:

drwxrwxrwt 2 root     root           1160 May 21 11:08 ./

i have a file:

\-rw-rw-rw- 1 www-data www-data          9 May 21 11:06 queueFile.txt 

this file, in my mind, has access for read and write by anyone.

If the file was created by php, my normal user will not be able to write to it, chmod it or remove it.

If the file is created with samba, then php can not append, chmod or write to it.

it is not listed as locked by samba.

read access is granted ok.

I am loosing it a bit, that file rights seems to have become ghosts that just makes up their own rules.

Any helpful suggerstions?

the folder is mounted as a memory filesystem but i had similar problems with the normal file system:

tmpfs on /uf/proxy type tmpfs (rw,relatime,size=262144k,inode64)

/dev/xvdb on /uf type btrfs (rw,relatime,ssd,space_cache=v2,subvolid=5,subvol=/)

I also tested to run the php script as root from CLI but it still say I do not have access to write to the file. So it seems its not docker related...

tried opening it in nano as root and add some text, not allowed to save it.

fuser queueFile.txt

gives an empty response

smbstatus|grep query

gives an empty response

smbstatus|grep proxy

gives:

498026       1001       DENY_NONE  0x100081    RDONLY     NONE             /uf proxy   Thu May 21 15:08:03 2026
498026       1001       DENY_NONE  0x100081    RDONLY     NONE             /uf proxy   Thu May 21 15:08:03 2026

the path has been "edited/shortened" in this text

i am new to ubuntu and try to install ofbiz and one of the steps are to "run the gradle". In the terminal it say download failed - check the logs and fix the problem. Where do i see the logs and then how do i fix such problems

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;

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

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:

systemctl status --user

Output:
● um26
    State: running
    Units: 206 loaded (incl. loaded aliases)
     Jobs: 0 queued
   Failed: 0 units
    Since: Thu 2026-05-21 06:43:26 UTC; 2h 15min ago
  systemd: 259.5-0ubuntu3
  Tainted: unmerged-bin
   CGroup: /user.slice/user-1000.slice/user@1000.service
           ├─app.slice
           │ ├─dconf.service
           │ │ └─3067 /usr/libexec/dconf-service
           │ ├─evolution-addressbook-factory.service
           │ │ └─4275 /usr/libexec/evolution-addressbook-factory
           │ ├─evolution-calendar-factory.service
           │ │ └─4127 /usr/libexec/evolution-calendar-factory
           │ ├─evolution-source-registry.service
           │ │ └─3953 /usr/libexec/evolution-source-registry
           │ ├─gnome-keyring-daemon.service
           │ │ └─3074 /usr/bin/gnome-keyring-daemon --foreground --components=pkcs11,secrets --control-directory=/run/user/1000/keyring
           │ ├─mpris-proxy.service
           │ │ └─2334 /usr/bin/mpris-proxy
           │ ├─obex.service
           │ │ └─4375 /usr/libexec/bluetooth/obexd
           │ └─xdg-desktop-portal-gtk.service
           │   └─4146 /usr/libexec/xdg-desktop-portal-gtk
           ├─init.scope
           │ ├─2258 /usr/lib/systemd/systemd --user
           │ └─2270 "(sd-pam)"
           └─session.slice
             ├─at-spi-dbus-bus.service
             │ ├─3010 /usr/libexec/at-spi-bus-launcher
             │ ├─3017 /usr/bin/dbus-daemon --config-file=/usr/share/defaults/at-spi2/accessibility.conf --nofork --print-address 11 --address=unix:path=/run/user/1000/at-spi/bus_0
             │ └─3077 /usr/libexec/at-spi2-registryd --use-gnome-session
             ├─dbus.service
             │ ├─2305 /usr/bin/dbus-daemon --session --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only
             │ ├─3799 mate-menu
             │ ├─3801 /usr/libexec/mate-panel/wnck-applet
             │ ├─3803 /usr/lib/mate-applets/trashapplet
             │ ├─3805 /usr/lib/mate-indicator-applet/mate-indicator-applet-complete
             │ ├─3807 /usr/lib/mate-applets/mate-multiload-applet
             │ └─3809 /usr/libexec/mate-panel/notification-area-applet
             ├─filter-chain.service
             │ └─2337 /usr/bin/pipewire -c filter-chain.conf
             ├─gvfs-afc-volume-monitor.service
             │ └─3552 /usr/libexec/gvfs-afc-volume-monitor
             ├─gvfs-daemon.service
             │ ├─ 2996 /usr/libexec/gvfsd
             │ ├─ 3002 /usr/libexec/gvfsd-fuse /run/user/1000/gvfs -f
             │ ├─ 3851 /usr/libexec/gvfsd-trash --spawner :1.15 /org/gtk/gvfs/exec_spaw/0
             │ ├─ 6031 /usr/libexec/gvfsd-network --spawner :1.15 /org/gtk/gvfs/exec_spaw/1
             │ ├─ 6048 /usr/libexec/gvfsd-dnssd --spawner :1.15 /org/gtk/gvfs/exec_spaw/2
             │ └─17248 /usr/libexec/gvfsd-computer --spawner :1.15 /org/gtk/gvfs/exec_spaw/5
             ├─gvfs-goa-volume-monitor.service
             │ └─3460 /usr/libexec/gvfs-goa-volume-monitor
             ├─gvfs-gphoto2-volume-monitor.service
             │ └─3502 /usr/libexec/gvfs-gphoto2-volume-monitor
             ├─gvfs-metadata.service
             │ └─3173 /usr/libexec/gvfsd-metadata
             ├─gvfs-mtp-volume-monitor.service
             │ └─3603 /usr/libexec/gvfs-mtp-volume-monitor
             ├─gvfs-udisks2-volume-monitor.service
             │ └─3373 /usr/libexec/gvfs-udisks2-volume-monitor
             ├─pipewire-pulse.service
             │ └─2338 /usr/bin/pipewire-pulse
             ├─pipewire.service
             │ └─2307 /usr/bin/pipewire
             ├─wireplumber.service
             │ └─2336 /usr/bin/wireplumber
             ├─xdg-desktop-portal.service
             │ └─3993 /usr/libexec/xdg-desktop-portal
             ├─xdg-document-portal.service
             │ ├─4032 /usr/libexec/xdg-document-portal
             │ └─4096 fusermount3 -o rw,nosuid,nodev,fsname=portal,auto_unmount,subtype=portal -- /run/user/1000/doc
             └─xdg-permission-store.service
               └─4016 /usr/libexec/xdg-permission-store
lines 23-76/76 (END)

Any help is greatly appreciated.

After downloading a file in the web browser (no matter in which) and anywhere on the drive, a kernel panic appears. Tell me how to fix it. Everything works great, 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 use Ubuntu Desktop 25.10 and want to upgrade to Ubuntu 26.04
I have updated + upgraded my packages multiple times, yet the same error occurrs:

Reading cache
Distribution data outdated 
Please ensure all package updates are installed, and then try again. 
=== Command detached from window (Wed May 20 22:51:41 2026) ===
=== Command terminated with exit status 1 (Wed May 20 22:51:51 2026) ===

The output of sudo apt update and sudo apt upgrade:

gamer@black-mesa-terminal:~$ sudo apt update && sudo apt upgrade
[sudo: authenticate] Password: 
Hit:1 http://archive.ubuntu.com/ubuntu questing InRelease
All packages are up to date.    
Summary:                        
  Upgrading: 0, Installing: 0, Removing: 0, Not Upgrading: 0
gamer@black-mesa-terminal:~$ ```

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?

Starting 25.10 Ubuntu (Gnome) installer could install alongside Windows even with Bitlocker ON, if there is a freespace already.

But today when I installed 26.04, there was no Grub installed in EFI partition (as I checked later through Windows). So there was no way to boot into the Ubuntu, the Bitlocker screen came up. I didn't face this issue with 25.10 when installing alongside Windows with Bitlocker ON.

Should I try Kubuntu 26.04 now? Although they still have Calamares, not Flutter installer, can it work?

This morning I booted my Ubuntu 24.04 and the internet connection was gone! I tried some network restarts and found NetworkManager couldn't start. Some tutorials told me to get dhclient, but to get that and other drivers and system updates, I need an internet connection!

I changed the settings on the systemd file on NetworkManager and lowered the amount of seconds to try to get it to stop stopping NetworkManager, but it's still the same

I'm new and so my knowledge is based on copy and pasting what I find on the internet.

I need my computer. I tried adding wifi manually on the prompt, anchoring from my phone. It's been 5 hours of browsing the Internet for solutions that require me to have an internet connection to install the commands.

I am at a complete loss at this point in time. No matter what I do, upgrading to 26.04 was a mistake. Had nothing but gui issues (using a gtx 1660 ti), apps weren't working. So I went back to 24.04.

Anyways the problem(s) at hand.

The force reboot keeps happening. For no reason, I would be in the middle of a video, maybe I'm in the middle of writing code on visual studio code. Maybe I am doing my art design or whatever. Ubuntu will restart my computer for no reason. Doesn't ask, just does. This is a reoccurring problem I've been having with Ubuntu.

I have an xp pen artist 12 pro external drawing monitor. Sometimes when I am using it or it's connected, the display will stop working. Likewise it flickers on and off.

Apps flickers. Quite often actually. Between steam. Videos or websites on Firefox, they flicker at a constant rate. Probably happens about 10x a day in a 8 hour span of being on this computer.

The pointers and keyboards will randomly stop working. To the point that logging out does nothing. I have to force reboot. Wondering if this relates to being with a laptop and having hooked up devices. But shouldn't make a difference.

Now my question at hand is... How do I solve these issues? I have been trying different work around. Different drivers, upgrading Ubuntu. Downgrading. Changing settings. But nothing seems to work. I've only been using Ubuntu base for about 2 months now. Prior I've always used Budgie, Pop OS and even bazzite (also technically Ubuntu studio). But these problems seem to only occur on Ubuntu base.

To note, major reason I wanted to use Ubuntu base was for the sake of Visual studio code working somewhat flawlessly on here. Which it does.

Also I should note that I have run this specific laptop on Bazzite and PopOS. My other dual boot is bazzite.

I’m trying to diagnose a persistent read-only filesystem problem on an HP desktop and would appreciate ideas on what to test next.

System details:

• SO: Dual boot with ubuntu 18.04 and windows 10 on a HDD
• Machine: HP ENVY 750-500 Desktop PC series
• Motherboard: HP board ID 2B36
• BIOS version: 80.11
• BIOS date: 2015-04-01
• SATA controller: Intel 9 Series Chipset Family SATA Controller [AHCI Mode]
• Kernel driver: ahci
• Storage setup: SATA SSD connected internally

The SSD I tested is:

• Model: Crucial CT500BX500SSD1
• Firmware: M6CR072
• Capacity: 500 GB
• Interface: SATA III 6.0 Gb/s

Problem

After installing Ubuntu 24.04 on the SSD, the system would intermittently remount the root filesystem as read-only. The symptoms included:

• sudo touch /tmp/testfile failing with Read-only file system
• sudo apt update failing because it could not write to /tmp, /var/cache/apt, or /var/crash
• The system sometimes booting, but later behaving as if the root filesystem had become read-only

What I tested I tested the SSD and several different SATA cables:

• one brand-new SATA data cable
• two other data cables already in use with HDDs
• different SATA power cables
• disconnecting a HDD and reusing its SATA cables

Filesystem checks From a live USB, I ran:

sudo fsck -f -n /dev/sdc2

The result showed no filesystem errors. The output completed all passes without reporting problems.

SMART checks I installed smartmontools and ran:

sudo smartctl -a /dev/sdc
sudo smartctl -x /dev/sdc
sudo smartctl -t long /dev/sdc

Important results:

• SMART overall-health: PASSED
• Extended self-test previously completed without error
• No reallocated sectors
• No pending sectors
• No offline uncorrectable sectors
• But UDMA_CRC_Error_Count is 731

The full SMART output suggests the SSD itself is not failing in a classic way, but the CRC error count makes me suspect SATA link or motherboard-side issues.

Other observations

• The SSD benchmarks looked normal for a SATA SSD.
• The system is running in AHCI mode.
• I don’t fully believe all SATA cables and ports on the board are bad, so I’m wondering whether this could be a motherboard, BIOS, power, or controller issue instead.

My main question Given that:

• two different SSDs showed similar read-only behavior,
• multiple SATA data cables and power cables were tested,
• fsck found no filesystem corruption,
• SMART passed but UDMA_CRC_Error_Count is high,

what would be the next best step to isolate whether the problem is:

• the motherboard SATA ports,
• the PSU / SATA power,
• BIOS/firmware,
• or something else?

Would updating the HP BIOS be worth trying on this system?

Thanks in advance.

While trying to make a modification to a KDE4 subpackage for one of my retro-machines, I managed to break a good number of the other subpackages. My hunch would be that this has to do with using a newer compiler (gcc-9 from one of Ubuntu's own PPAs instead of gcc-5 that I used for the previous build from 10 years ago).

I'm now waiting for another build to finish that uses gcc-5 again, but it seems that this is a newer gcc5 than the one back then.

The old packages are still on the server, but are marked superseded. Fortunately I downloaded them because I feared I might have to roll back (as I can no longer properly do a local build).

Is there a way to bring those superseded packages back online? I had hoped that would happen automatically if I deleted the old version, but apparently not ... and I can't even fetch them with apt-get download foo=4:4.11<blabla>.

Thanks!

I have updated my Ubuntu from 25.10 version to 26.04, I received some error dusring the installation about the kernel.

At the first start I had a kernel panic error, I solved it starting my PC with the previous kernel version then I provided the following commands:

 sudo update-initramfs -u -k version

Now I can boot with any problem my PC with the latest kernel available 7.0.0-15.

But I think there is a problem, if I try to update my system via terminal this is what I have:

kaotik@kaotik:~$ sudo apt update && sudo apt upgrade
[sudo: authenticate] Password:       
Trovato:1 http://security.ubuntu.com/ubuntu resolute-security InRelease
Trovato:2 http://archive.ubuntu.com/ubuntu resolute InRelease                                       
Trovato:3 https://dl.google.com/linux/chrome-stable/deb stable InRelease                         
Trovato:4 http://archive.ubuntu.com/ubuntu resolute-updates InRelease   
Trovato:5 https://esm.ubuntu.com/apps/ubuntu resolute-apps-security InRelease
Trovato:6 http://archive.ubuntu.com/ubuntu resolute-backports InRelease
Trovato:7 https://esm.ubuntu.com/apps/ubuntu resolute-apps-updates InRelease
Trovato:8 http://archive.ubuntu.com/ubuntu resolute-proposed InRelease
Trovato:9 https://esm.ubuntu.com/infra/ubuntu resolute-infra-security InRelease
Trovato:10 https://esm.ubuntu.com/infra/ubuntu resolute-infra-updates InRelease
3 pacchetti possono essere aggiornati: eseguire "apt list --upgradable" per vederli.
Non ancora aggiornati per via dello scaglionamento:
  gnome-session-bin  gnome-session-common  ubuntu-session

Riepilogo:
  Aggiornamento: 0, Installazione: 0, Rimozione: 0, Non aggiornati: 3
  1 non completamente installati o rimossi.
  Spazio richiesto: 0 B / 413 GB disponibile

Continuare? [S/n] s
Configurazione di linux-image-7.0.0-15-generic (7.0.0-15.15)...
Elaborazione dei trigger per linux-image-7.0.0-15-generic (7.0.0-15.15)...
/etc/kernel/postinst.d/dracut:
dracut: Generating /boot/initrd.img-7.0.0-15-generic
dracut[W]: If you need to use bluetooth, please include it explicitly.
dracut[W]: If you need to use bluetooth, please include it explicitly.
/etc/kernel/postinst.d/kdump-tools:
kdump-tools: Generating /var/lib/kdump/initrd.img-7.0.0-15-generic
E: /usr/share/initramfs-tools/hooks/dhcpcd failed with return 1.
update-initramfs: failed for /var/lib/kdump/initrd.img-7.0.0-15-generic with 1.
run-parts: /etc/kernel/postinst.d/kdump-tools exited with return code 1
dpkg: errore nell'elaborare il pacchetto linux-image-7.0.0-15-generic (--configure):
 old linux-image-7.0.0-15-generic package postinst maintainer script subprocess failed with exit status 1
Si sono verificati degli errori nell'elaborazione:
 linux-image-7.0.0-15-generic
Errore: Sub-process /usr/bin/dpkg returned an error code (1)

I have tried to fix the installation using the forllowing commands:

kaotik@kaotik:~$ sudo dpkg --configure -a
Configurazione di linux-image-7.0.0-15-generic (7.0.0-15.15)...
Elaborazione dei trigger per linux-image-7.0.0-15-generic (7.0.0-15.15)...
/etc/kernel/postinst.d/dracut:
dracut: Generating /boot/initrd.img-7.0.0-15-generic
dracut[W]: If you need to use bluetooth, please include it explicitly.
dracut[W]: If you need to use bluetooth, please include it explicitly.
/etc/kernel/postinst.d/kdump-tools:
kdump-tools: Generating /var/lib/kdump/initrd.img-7.0.0-15-generic
E: /usr/share/initramfs-tools/hooks/dhcpcd failed with return 1.
update-initramfs: failed for /var/lib/kdump/initrd.img-7.0.0-15-generic with 1.
run-parts: /etc/kernel/postinst.d/kdump-tools exited with return code 1
dpkg: errore nell'elaborare il pacchetto linux-image-7.0.0-15-generic (--configure):
 old linux-image-7.0.0-15-generic package postinst maintainer script subprocess failed with exit status 1
Si sono verificati degli errori nell'elaborazione:
 linux-image-7.0.0-15-generic
kaotik@kaotik:~$ sudo apt-get install -f
Lettura elenco dei pacchetti... Fatto
Generazione albero delle dipendenze... Fatto
Lettura informazioni sullo stato... Fatto   
Risoluzione dipendenze... Fatto
0 aggiornati, 0 installati, 0 da rimuovere e 3 non aggiornati.
1 non completamente installati o rimossi.
Dopo quest'operazione, verranno occupati 0 B di spazio su disco in più.
Configurazione di linux-image-7.0.0-15-generic (7.0.0-15.15)...
Elaborazione dei trigger per linux-image-7.0.0-15-generic (7.0.0-15.15)...
/etc/kernel/postinst.d/dracut:
dracut: Generating /boot/initrd.img-7.0.0-15-generic
dracut[W]: If you need to use bluetooth, please include it explicitly.
dracut[W]: If you need to use bluetooth, please include it explicitly.
/etc/kernel/postinst.d/kdump-tools:
kdump-tools: Generating /var/lib/kdump/initrd.img-7.0.0-15-generic
E: /usr/share/initramfs-tools/hooks/dhcpcd failed with return 1.
update-initramfs: failed for /var/lib/kdump/initrd.img-7.0.0-15-generic with 1.
run-parts: /etc/kernel/postinst.d/kdump-tools exited with return code 1
dpkg: errore nell'elaborare il pacchetto linux-image-7.0.0-15-generic (--configure):
 old linux-image-7.0.0-15-generic package postinst maintainer script subprocess failed with exit status 1
Si sono verificati degli errori nell'elaborazione:
 linux-image-7.0.0-15-generic
E: Sub-process /usr/bin/dpkg returned an error code (1)

I have tried to reinstall the kernel too:

kaotik@kaotik:~$ sudo apt install --reinstall linux-image-$(uname -r) linux-modules-$(uname -r)
[sudo: authenticate] Password:       
Riepilogo:                                 
  Aggiornamento: 0, Installazione: 0, Reinstallazione: 2Rimozione: 0, Non aggiornati: 6
  1 non completamente installati o rimossi.
  Dimensione scaricamento: 169 MB
  Spazio richiesto: 0 B / 414 GB disponibile

Scaricamento di:1 http://archive.ubuntu.com/ubuntu resolute-updates/main amd64 linux-modules-7.0.0-15-generic amd64 7.0.0-15.15 [169 MB]
Recuperati 169 MB in 8s (22,5 MB/s)                                                                                                                                                         
Errore: Internal Error, No file name for linux-image-7.0.0-15-generic:amd64

But I have always that error message.

Could you please help me to fix it?

Thank you

I've tried these commands:

kaotik@kaotik:~$ sudo cp /boot/initrd.img-7.0.0-15-generic /boot/initrd.img-7.0.0-15-generic.img.$(date +%m-%d-%H%M%S).bak
[sudo: authenticate] Password:       
kaotik@kaotik:~$ sudo dracut -v -f /boot/initrd.img-7.0.0-15-generic 7.0.0-15-generic
dracut[I]: Executing: /usr/bin/dracut -v -f /boot/initrd.img-7.0.0-15-generic 7.0.0-15-generic
dracut[W]: If you need to use bluetooth, please include it explicitly.
dracut[I]: 71overlayfs-crypt: Could not find any command of 'cryptsetup'!
dracut[W]: If you need to use bluetooth, please include it explicitly.
dracut[I]: 71overlayfs-crypt: Could not find any command of 'cryptsetup'!
dracut[I]: *** Including module: console-setup ***
dracut[I]: *** Including module: dash ***
dracut[I]: *** Including module: systemd ***
dracut[I]: *** Including module: systemd-ask-password ***
dracut[I]: *** Including module: systemd-battery-check ***
dracut[I]: *** Including module: systemd-initrd ***
dracut[I]: *** Including module: systemd-journald ***
dracut[I]: *** Including module: systemd-modules-load ***
dracut[I]: *** Including module: systemd-pcrextend ***
dracut[I]: *** Including module: systemd-sysctl ***
dracut[I]: *** Including module: systemd-tmpfiles ***
dracut[I]: *** Including module: systemd-udevd ***
dracut[I]: *** Including module: i18n ***
dracut[I]: *** Including module: plymouth ***
dracut[I]: *** Including module: simpledrm ***
dracut[I]: *** Including module: fs-lib ***
dracut[I]: *** Including module: kernel-modules ***
dracut[I]: *** Including module: kernel-modules-extra ***
dracut[I]: *** Including module: rootfs-block ***
dracut[I]: *** Including module: terminfo ***
dracut[I]: *** Including module: udev-rules ***
dracut[I]: *** Including module: dracut-systemd ***
dracut[I]: *** Including module: initqueue ***
dracut[I]: *** Including module: usrmount ***
dracut[I]: *** Including module: systemd-sysusers ***
dracut[I]: *** Including module: base ***
dracut[I]: *** Including module: shell-interpreter ***
dracut[I]: *** Including module: shutdown ***
dracut[I]: *** Including modules done ***
dracut[I]: *** Installing kernel module dependencies ***
dracut[I]: *** Installing kernel module dependencies done ***
dracut[I]: *** Resolving dependencies for executables and libraries ***
dracut[I]: *** Resolving dependencies for executables and libraries done ***
dracut[I]: *** Generating early-microcode cpio image ***
dracut[I]: *** Constructing AuthenticAMD.bin ***
dracut[I]: *** Store current command line parameters ***
dracut[I]: Stored kernel commandline:
dracut[I]:  root=UUID=804df917-be68-43b0-bca7-ed6409e1f9bc rootfstype=ext4 rootflags=rw,relatime
dracut[I]: *** Stripping files ***
dracut[I]: *** Stripping files done ***
dracut[I]: *** Creating image file '/boot/initrd.img-7.0.0-15-generic.tmp' ***
dracut[I]: *** Hardlinking files ***
dracut[I]: *** Hardlinking files done ***
dracut[I]: Using auto-determined compression method 'zstd'
dracut[I]: *** Creating initramfs image file '/boot/initrd.img-7.0.0-15-generic.tmp' done ***
dracut[I]: *** Moving image file '/boot/initrd.img-7.0.0-15-generic.tmp' to '/boot/initrd.img-7.0.0-15-generic' ***
dracut[I]: *** Moving image file '/boot/initrd.img-7.0.0-15-generic.tmp' to '/boot/initrd.img-7.0.0-15-generic' done *

Then I've tried to update the system again:

Elaborazione dei trigger per linux-image-7.0.0-15-generic (7.0.0-15.15)...
/etc/kernel/postinst.d/dracut:
dracut: Generating /boot/initrd.img-7.0.0-15-generic
dracut[W]: If you need to use bluetooth, please include it explicitly.
dracut[W]: If you need to use bluetooth, please include it explicitly.
/etc/kernel/postinst.d/kdump-tools:
kdump-tools: Generating /var/lib/kdump/initrd.img-7.0.0-15-generic
E: /usr/share/initramfs-tools/hooks/dhcpcd failed with return 1.
update-initramfs: failed for /var/lib/kdump/initrd.img-7.0.0-15-generic with 1.
run-parts: /etc/kernel/postinst.d/kdump-tools exited with return code 1
dpkg: errore nell'elaborare il pacchetto linux-image-7.0.0-15-generic (--configure):
 old linux-image-7.0.0-15-generic package postinst maintainer script subprocess failed with exit status 1
Si sono verificati degli errori nell'elaborazione:
 linux-image-7.0.0-15-generic
Errore: Sub-process /usr/bin/dpkg returned an error code (1)

Same issue

Since updating to Ubuntu 26.04 on my laptop, I've been having an issue where the screen just goes black after Ubuntu boots up. I see the boot animation, but as soon as I reach the login screen, the screen goes black. When I connect a second monitor, I can see that everything works fine on it. I’ve already found a workaround to reactivate the primary screen: if I briefly close the laptop and then open it again, everything suddenly works as it should. I generated a GPU log of the startup. You can see that after 9 seconds, the graphics card tries to communicate with the screen and apparently fails. A clean install did not fix the problem. Does anyone have any idea how to fix this?

Hardware specs: ASUS Viviobook TN3402QA AMD Ryzen 7 5800HS with integrated Radeon RX Vega 8 graphics card

Here is an excerpt of the log:

[    8.802777] [drm] Initialized amdgpu 3.64.0 for 0000:03:00.0 on minor 1
[    8.823121] fbcon: amdgpudrmfb (fb0) is primary device
[    8.823135] amdgpu 0000:03:00.0: [drm] fb0: amdgpudrmfb frame buffer device
[    8.842110] [drm] pre_validate_dsc:1667 MST_DSC dsc precompute is not needed
[    9.233067] amdgpu 0000:03:00.0: [drm] *ERROR* dc_dmub_srv_log_diagnostic_data: DMCUB error - collecting diagnostic data
[    9.449688] amdgpu 0000:03:00.0: [drm] *ERROR* dc_dmub_srv_log_diagnostic_data: DMCUB error - collecting diagnostic data
[    9.667098] amdgpu 0000:03:00.0: [drm] *ERROR* dc_dmub_srv_log_diagnostic_data: DMCUB error - collecting diagnostic data
[    9.940800] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1122: core_link_write_dpcd (DP_DOWNSPREAD_CTRL) failed
[    9.961162] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1127: core_link_write_dpcd (DP_LANE_COUNT_SET) failed
[   10.001292] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1144: core_link_write_dpcd (DP_LINK_BW_SET) failed
[   10.021449] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1149: core_link_write_dpcd (DP_LINK_RATE_SET) failed
[   11.021179] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1122: core_link_write_dpcd (DP_DOWNSPREAD_CTRL) failed
[   11.041226] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1127: core_link_write_dpcd (DP_LANE_COUNT_SET) failed
[   11.081319] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1144: core_link_write_dpcd (DP_LINK_BW_SET) failed
[   11.101481] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1149: core_link_write_dpcd (DP_LINK_RATE_SET) failed
[   12.150694] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1122: core_link_write_dpcd (DP_DOWNSPREAD_CTRL) failed
[   12.171328] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1127: core_link_write_dpcd (DP_LANE_COUNT_SET) failed
[   12.212682] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1144: core_link_write_dpcd (DP_LINK_BW_SET) failed
[   12.233327] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1149: core_link_write_dpcd (DP_LINK_RATE_SET) failed
[   13.354679] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1122: core_link_write_dpcd (DP_DOWNSPREAD_CTRL) failed
[   13.375666] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1127: core_link_write_dpcd (DP_LANE_COUNT_SET) failed
[   13.416987] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1144: core_link_write_dpcd (DP_LINK_BW_SET) failed
[   13.437652] amdgpu 0000:03:00.0: [drm] *ERROR* dpcd_set_link_settings:1149: core_link_write_dpcd (DP_LINK_RATE_SET) failed
[   13.803319] amdgpu 0000:03:00.0: [drm] enabling link 0 failed: 15
[   35.801921] amdgpu 0000:03:00.0: [drm] *ERROR* dc_dmub_srv_log_diagnostic_data: DMCUB error - collecting diagnostic data
[   47.886079] amdgpu 0000:03:00.0: [drm] PCIE GART of 1024M enabled.
[   47.886086] amdgpu 0000:03:00.0: [drm] PTB located at 0x000000F41FC00000
[   47.886113] amdgpu 0000:03:00.0: SMU is resuming...
[   47.887211] amdgpu 0000:03:00.0: dpm has been disabled
[   47.888408] amdgpu 0000:03:00.0: SMU is resumed successfully!

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 installed Ubuntu 24.04.2 LTS, the audio was working during install and after booting up for the first time. However now the audio does not work, after a second reboot it has gone.

On pavucontrol the only output device is "dummy output". In the configuration section there's Renoir Radeon High Definition Audio Controller, two profiles in the menu, one for hifi ("unplugged" and "unavailable") and one for pro audio. Selecting either of them doesn't change anything.

Usually if I have audio working on this laptop the output device is called "AMD Family 17h (Models 10h-1fh) HD Audio Controller", which is not showing up in pavucontrol.

This is what I get when using sudo dmesg | grep -iE 'snd|hda|audio':

[    2.195810] snd_rn_pci_acp3x 0000:03:00.5: enabling device (0000 -> 0002)
[    2.516559] snd_hda_intel 0000:03:00.1: enabling device (0000 -> 0002)
[    2.516665] snd_hda_intel 0000:03:00.1: Handle vga_switcheroo audio client
[    2.516897] snd_hda_intel 0000:03:00.6: enabling device (0000 -> 0002)
[    2.530241] input: HD-Audio Generic HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:08.1/0000:03:00.1/sound/card0/input13
[    3.571468] snd_hda_intel 0000:03:00.6: azx_get_response timeout, switching to polling mode: last cmd=0x800f0005
[    4.575470] snd_hda_intel 0000:03:00.6: No response from codec, disabling MSI: last cmd=0x800f0005
[    5.577460] snd_hda_intel 0000:03:00.6: azx_get_response timeout, switching to single_cmd mode: last cmd=0x800f0005
[    6.622167] snd_hda_intel 0000:03:00.1: bound 0000:03:00.0 (ops amdgpu_dm_audio_component_bind_ops [amdgpu])
[    9.860588] hdaudio hdaudioC1D0: no AFG or MFG node found
[    9.860614] snd_hda_intel 0000:03:00.6: no codecs initialized

From searching for solutions online, it seems that people have had success restarting pipewire or clearing config. Neither worked for me. I've also seen people say they got their audio to work by downgrading the kernel but that this is a last resort.

Any help is appreciated. I'm not familiar with using Linux so some instructions that may seem obvious/easy to follow might need extra explaining/context.

When going through the menu, I only see an option to back up the profile for Thunberdird whereas I want to backup e-mail. Version:

nicholas@mordor:~$ thunderbird --version
Thunderbird 115.4.1
nicholas@mordor:~$ 
nicholas@mordor:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 22.04 LTS
Release:    22.04
Codename:   jammy
nicholas@mordor:~$ 

From tools how is the backup e-mail option selected?

I set USB provisioning_mode to unmap to allow TRIM discard for an external USB SSD that supports TRIM. The system reverts to provisioning_mode full after reboot. TRIM works great with provisioning_mode set to unmap, so that I can manually TRIM a partition or entire drive when I want to. I have more than one etc/udev/rules.d files - 10-uas-discard.rules, 10-trim.rules, 50-usb-ssd-trim.rules & 90-usb-discard.rules - all contain the exact same data - ACTION=="add|change", ATTRS{idVendor}=="174c", ATTRS{idProduct}=="55aa, SUBSYSTEM=="scsi_disk", ATTR{provisioning_mode}="unmap"

Is there any way to prevent this? Am I missing something?

ASMedia chipset:

Drive stats:

fstab :

USB udev rules:

provisioning_mode location:

More TRIM data:

● systemd-timesyncd.service - Network Time Synchronization
   Loaded: loaded (/lib/systemd/system/systemd-timesyncd.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Sat 2019-08-17 04:32:34 PDT; 11min ago
     Docs: man:systemd-timesyncd.service(8)
  Process: 4629 ExecStart=/lib/systemd/systemd-timesyncd (code=exited, status=238/STATE_DIRECTORY)
 Main PID: 4629 (code=exited, status=238/STATE_DIRECTORY)

It still says this after I created /var/lib/systemd/timesync/.

I would like to understand what a masked service is and how to unmask it if need be.

I have been trying to start PostgreSQL on Ubuntu 16.04-LTS using the command

systemctl start postgresql.service.

Both as a user with administrative privileges, as well as root respectively.

Unfortunately, I got

Failed to start postgresql.service: Unit postgresql.service is masked.

printed in both scenarios.

I have no idea how to set the display. I keep getting the following error error

xterm: xt error can't open display xterm display is not set

I have searched online but haven't found any solution. Please can anyone help me out ?

At first, I had this USB flash drive with a Ubuntu 14.04 LTS bootable in it. But now, I want to remove/wipe it and create a new bootable of another OS. First, I tried directly:

sudo cat file.iso > /dev/sdb; sync

As suggested in this thread. It didn't worked, returned

bash: /dev/sdb: Permission denied

So, I thought that this was happening because of it already containing a bootable and decide to wipe it. So I just shreded it

sudo shred -v /dev/sdb

After it, It wasn't appearing on the nautilus vertical nav as I sticked it into PC. So I made a file system for it sudo mkfs.ext3 /dev/sdb (I don't know if it's the right type of fs to make it but I was just testing anyway, if it isn't, please warn me about this)

Now, I access it through nautilus and I see that it is indeed empty. I'm trying to make that command I was doing in the beginning sudo cat file.iso > /dev/sdb; sync but still having the same "permission denied" again.

So, two questions on that, did this mkfs was applied correctly or I shouldn't do that? And, how do I solve my problem of making my bootable iso finally? (I don't want to use unetbootin, couldn't install it and I read that it could be done using cat/sync) Thanks in advance.

I have a lovely mount: unknown filesystem type 'ubifs' error with Ubuntu 14.04. What package provides this functionality?

It should be included in some previous versions of Ubuntu. The mtd-* packages are not helping.

I ordered a new computer with Windows 8 to test before rolling out. It arrived with Ubuntu 12.04. Rather then just send it back, I decided to check it out first as I think the system is probably much better than the MS options. However, try as I might, I cannot get a PPA set up. I'm trying to install Pinta-Paint but can't find the line to copy into the software centre. Please could someone point me in the right direction.