I am very new to running Windows applications on Ubuntu. As the title says, Adobe Digital Editions silent crashes when I try to start it from Bottles on Ubuntu 24.04. I press the play button on the created shortcut, the message Launching "DigitalEditions" shows and then nothing (the play button goes back to being a play button instead of a stop button).

• Bottles version 60 is installed using Flatpak
• The Windows installer was downloaded manually from: https://www.adobe.com/nl/solutions/ebook/digital-editions/download.html
• The Bottle is configured with soda-9.0.1, dxvk-2.7.1, vkd3d-proton-3.0, Windows version 10
• Shortcut points to drive_c/Program Files (x86)/Adobe/Adobe Digital Editions 4.5/DigitalEditions.exe

When I launch the shortcut with the terminal this is the output:

wineserver: using server-side synchronization.
002c:err:wineboot:process_run_key Error running cmd L"C:\\windows\\system32\\winemenubuilder.exe -a -r" (126).
0088:err:ntoskrnl:ZwLoadDriver failed to create driver L"\\Registry\\Machine\\System\\CurrentControlSet\\Services\\winebth": c0000135
00d8:err:module:fixup_imports_ilonly mscoree.dll not found, IL-only binary L"DigitalEditions.exe" cannot be loaded
00d8:err:module:loader_init Importing dlls for L"C:\\Program Files (x86)\\Adobe\\Adobe Digital Editions 4.5\\DigitalEditions.exe" failed, status c0000135

I understand this is an error coming from Wine, but I am lost as to where to start with this error in Bottles.

My main question is, how do I fix this?

I think my built-in Bluetooth spoil, how do I remove it from the system?

I also bought a USB bluetooth 6.0 adapter, how do I install it?

I try to install ubuntu 22.04. I can login fine but when the lid closes and opens, the blackscreen shows.

I have disable secure boot. I have set amdgpu.rpm = 0 in Grub.

I have set the HandleCaseSwitch in logind.conf to not suspend so I can close the lod. If the suspend action happens, the blackscreen will show and I have to force shutdown by holding down power button.

This is quite frustrated since I thought Linux is verified with the Elite Book.

Wi-Fi adapter not detected on Ubuntu 22.04 (MediaTek MT7902

I have Xubuntu 24.04 LTS and pipewire-pulse which works via unix socket. I put path into config file and it seems to work. But there is one issue. When I login, LightDM creates unix socket, that is fine, then I log in and LightDM removes unix socket, but not immediately, during this time user pipewire-pulse can not create it and failed with error "address is in use". I can easily start it manually later and everything works as expected.

I tried to create different unix soket path for the user, so LightDM would have its own path and user has its own. But this solution doesn't work at all.

Any thoughts how to fix it? Thank you

I have orca slicer saved as an appimage on my desktop, this doesn't have an icon, sadly, and isn't recognized as software, so when I try opening a file from printables, it doesn't work.

I've downloaded the stock Ubuntu 24.04.3 LTS ISO image. I'd like to use this to create a USB installation drive, but first I want to make a small edit to GRUB configuration. GRUB is not the point of this question, so please don't get hung up on that.

To extract the stock ISO I followed this suggestion to use 7z. This appeared to work:

7-Zip [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=en_US.UTF-8,Utf16=on,HugeFiles=on,64 bits,8 CPUs 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz (806C1),ASM,AES-NI)

Scanning the drive for archives:
1 file, 6345887744 bytes (6052 MiB)

Extracting archive: ../ubuntu-24.04.3-desktop-amd64.iso

WARNINGS:
There are data after the end of archive

--
Path = ../ubuntu-24.04.3-desktop-amd64.iso
Type = Iso
WARNINGS:
There are data after the end of archive
Physical Size = 6345547776
Tail Size = 339968
Created = 2025-08-05 13:20:26
Modified = 2025-08-05 13:20:26

 67% 835 - pool/main/f/firmware-sof/firmwar . ned_2023.12.1-1ubuntu1.7_all.de

 {Junk omitted.  Ask if you'd like to see it}

 95% 1214 - pool/restricted/n/nvidia-graphi . 63.01-0ubuntu0.24.04.1_amd64.de
 Everything is Ok                                                             

Archives with Warnings: 1

Warnings: 1
Folders: 199
Files: 1035
Size:       6342415880
Compressed: 6345887744

According to posts like this, the warning about data after the end of the archive is benign. In any event, usable files were extracted:

Unzipped_ISO$ ls
total 92K
drwx------ 3 user user 4.0K Jul 25 13:19  boot
drwx------ 2 user user 4.0K Jan  1 15:10 '[BOOT]'
-rw-rw-r-- 1 user user 2.0K Aug  5 14:20  boot.catalog
drwx------ 2 user user  12K Aug  5 14:20  casper
drwx------ 2 user user 4.0K Aug  5 14:17  .disk
drwx------ 3 user user 4.0K Aug  5 14:11  dists
drwx------ 3 user user 4.0K Jul 25 13:19  EFI
drwx------ 2 user user 4.0K Aug  5 14:11  install
-rw-rw-r-- 1 user user  44K Aug  5 14:20  md5sum.txt
drwx------ 4 user user 4.0K Aug  5 14:11  pool
drwx------ 2 user user 4.0K Aug  5 14:11  preseed

I then made an edit to one line of boot/grub/grub.cfg. No problems there.

The problem is that, having made that change, I can't reverse the extraction and recover a new bootable ISO file.

Based on advice this WikiHow article, I first tried the xorriso utility. It failed.

$ xorriso -as mkisofs -o ubuntu-24.04.3-2026.01.01-desktop-amd64_grubfix.iso -isohybrid-mbr /usr/lib/ISOLINUX/isohdpfx.bin -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot -e boot/grub/efi.img -no-emul-boot -isohybrid-gpt-basdat -J -R /home/user/Unzipped_ISO/
xorriso 1.5.4 : RockRidge filesystem manipulator, libburnia project.

Drive current: -outdev 'stdio:ubuntu-24.04.3-2026.01.01-desktop-amd64_grubfix.iso'
Media current: stdio file, overwriteable
Media status : is blank
Media summary: 0 sessions, 0 data blocks, 0 data,  112g free
Added to ISO image: directory '/'='/home/user/Unzipped_ISO'
xorriso : UPDATE :    1236 files added in 1 seconds
xorriso : FAILURE : Cannot find in ISO image: -boot_image ... bin_path='/boot/isolinux/isolinux.bin'
xorriso : UPDATE :    1236 files added in 1 seconds
xorriso : aborting : -abort_on 'FAILURE' encountered 'FAILURE'

I did a web search for the error "xorriso : FAILURE : Cannot find in ISO image: -boot_image". It returned very few results, much of which was in Chinese. I have to assume I don't have enough lifetime left to ever learn the resolution to this failure.

I then tried Brasero, following the instructions in the WikiHow article above. At no point was there any UI element that differentiated between a bootable ISO and a non-bootable ISO. Brasero produced an .iso output file, which I then attempted to burn to a USB drive using BalenaEtcher. BalenaEtcher raised a warning that the ISO was not bootable:

Missing partition table

It looks like this is not a bootable image. The image does not appear to contain a partition table, and might not be recognized or bootable by your device.

I tried it anyway, and sure enough, the USB was not recognized as bootable. I don't understand the nature of this error; since all I did was change one line of one file, any partition table in the original should have carried through to the output. It appears that Brasero won't create a bootable ISO.

I found this AskUbuntu post that appears on-topic, but the question is vague and the answers are poorly written and lack meaningful context. In particular, they don't appear to be concerned with whether or not the resulting ISO is bootable. I have no confidence that lurching randomly through the suggestions there will be a good use of my limited time.

So, I'm looking for expertise. How do I re-package a bunch of files that I just extracted from a perfectly good, bootable ISO back into a bootable ISO? The computer I'm working on is Ubuntu 22.04.

I have a Samsung T7 Shield 4 TB with a LUKS-encrypted partition and ext4 filesystem with default mount options on Ubuntu 22.04. Writing large files (~1–2 GB) causes the drive to hang, USB resets, and I/O errors:

[ sda ] Synchronize Cache failed
[ sda ] I/O error while writing superblock
ext4-fs: mount failed

Tests and findings:

1. Raw writes to /dev/sda without filesystem or LUKS are stable at ~750 MB/s for tens of GB.

2. LUKS alone (/dev/mapper/t7test) is also stable at ~639 MB/s.

3. The problem only occurs with ext4 + LUKS, due to journal writes and frequent flush/barrier operations which the Samsung T7 USB-NVMe bridge cannot handle reliably.

Solution:
Mount ext4 with minimal journaling / flushes:

sudo mkfs.ext4 /dev/mapper/t7crypt
sudo mount -o data=writeback,noatime,nodiratime,barrier=0 /dev/mapper/t7crypt /mnt/t7

• data=writeback → journal only for metadata, not file data

• noatime,nodiratime → reduce unnecessary writes

• barrier=0 → disable flush barriers that trigger USB resets

Tested with dd (4 MB blocks, 30–50 GB) → stable ~600 MB/s, no resets or I/O errors.

Conclusion:
The issue is not LUKS, not ext4 itself, but the combination of ext4 journal + flushes + Samsung T7 USB bridge. Using data=writeback + barrier=0 eliminates the problem.

Note: I also enforced usb-storage so performance might look a bit low.

Reading the manpage for the fish shell with man, I see a reference to a fuller fish-doc manpage.

However, man cannot locate it:

$ man fish-doc
No manual entry for fish-doc

This manpage indeed exists, but is located in the /usr/share/fish/man subtree rather than /usr/share/man:

$ apt-file search /fish-doc
fish-common: /usr/share/fish/man/man1/fish-doc.1

There are also many other fish-specific manpages there, so it's clearly a deliberate choice that's supposed to be usable somehow. How do I view any of those pages?

After reading through the man and manpath pages, tried man fish fish-doc, man fish-doc.fish, manpath -m fish, to no avail.

I just bought a new Asus ROG Strix Scar 18 (2025) laptop with Windows 11 installed. When I am loading from an Ubuntu USB stick (I tried both Ubuntu 22.04 and 24.04), the system does not detect the SSD at all. When browsing with Google, I saw that the RAID mode of SSD can be an issue; however, when I disable VMD mode in the BIOS, the SSD disappears even from BIOS boot options

I looked on the internet, and have not found any specific AHCI drivers for Windows 11 for my laptop model. I just saw multiple times that it is enough to remove the AHCI mode from BIOS (for example, here https://www.reddit.com/r/techsupport/comments/r2wxjo/anyone_know_how_to_enable_ahci_mode_in_this_bios/). In my BIOS (G835LXEC.314), apart from enabling/disabling VMD, there is also an option to remove RAID data:

Is this the only way to remove RAID and let the SSD be visible on Linux? As far as I understand from the description, it will remove Windows completely, which I need to keep. Or are there any other ways to enable AHCI mode on Windows and fix the issue?

Also, you asked about the .iso versions, which I tried installing from. Those were: ubuntu-22.04.5-desktop-amd64.iso and ubuntu-24.04.3-desktop-amd64.iso. Today, I also tried ubuntu-25.10-desktop-amd64.iso, but it didn't detect the SSD either.

I've installed KerioControl VPN client on Ubuntu 22.04 and configured it with no problem, but it restarts the connection when I stop it using sudo /etc/init.d/kerio-kvc stop.

I think it's because of <connection type="persistent"> in my config file.

With this type I should disable the connection by changing <active>1</active> to <active>0</active> and reload the config file every time, but there should be a better way.

In Windows client there is a checkbox to enable/disable the persistent connection, but in Linux there is no GUI and it's configured using CLI.

Is there any other type of connection or a better way to prevent reconnecting?

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:

I've installed from scratch Ubuntu 22.04LTS and I found that the available disk space is half of what it should be. This is the second time it happened but in first case I thought it was by my mistake. For some reason cfdisk or fdisk are reporting that the disk size is 32GB:

Disk /dev/sda: 32 GiB, 34359738368 bytes, 67108864 sectors
Disk model: QEMU HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: DBA31C33-C478-435C-BECA-08D640FCA9DC

Device       Start      End  Sectors Size Type
/dev/sda1     2048     4095     2048   1M BIOS boot
/dev/sda2     4096  4198399  4194304   2G Linux filesystem
/dev/sda3  4198400 67106815 62908416  30G Linux filesystem

but unfortunately df reports only half of it:

Filesystem                         Size  Used Avail Use% Mounted on
tmpfs                              795M 1016K  794M   1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv   15G  2.7G   12G  20% /
tmpfs                              3.9G     0  3.9G   0% /dev/shm
tmpfs                              5.0M     0  5.0M   0% /run/lock
/dev/sda2                          2.0G  127M  1.7G   7% /boot
tmpfs                              795M  4.0K  795M   1% /run/user/1000

and there is no space available to resize the partition so the question is what is going on?

Previously I've seen this on NUC device so I can rule out QEMU issues.

Looking for an Audio Equalizer. I have read of Pulse Equalizer, but that program seems to not have been updated since 2016. Anyone know of up-to-date Audio Equalizers?

I'm running Ubuntu 21.04 on a Dell XPS 13 9300.

All of my Bluetooth devices keep disconnecting and reconnecting.

This is a problem as my mouse, keyboard, and headphones all use Bluetooth. I used to be able to use all 3 at once with no problems.

I tried downgrading from kernel 5.11 to 5.10 with no effect.

The problem started sometime this week.

Attached are all of the packages upgraded in the last 3 days, and another list for all from the last 14 days in case none of the newer ones pan out.

Any idea which of these affect Bluetooth?

Last 3 days:

evanmobley@evanmobley-XPS-13-9300:~$ find /var/lib/dpkg/info/ -name \*.list -mtime -3 | sed 's#.list$##;s#.*/##' 
systemd-timesyncd
libcurl4:amd64
qml-module-qtquick-window2:amd64
qml-module-qtquick-layouts:amd64
apport
python3-apport
libmspack0:amd64
systemd-sysv
qml-module-qtgraphicaleffects:amd64
libudev1:amd64
udev
libllvm12:amd64
squashfs-tools
linux-modules-5.10.66-051066-generic
libqt5qmlmodels5:amd64
libnss-systemd:amd64
qml-module-qtquick2:amd64
curl
libgcrypt20:amd64
imagemagick
libqt5qmlworkerscript5:amd64
qml-module-qtqml-models2:amd64
libqt5quick5:amd64
python3-problem-report
ocs-url
libsystemd0:amd64
libpam-systemd:amd64
linux-image-unsigned-5.10.66-051066-generic
qml-module-qtquick-controls:amd64
code
cabextract
qml-module-qtqml:amd64
apport-gtk
linux-headers-5.10.66-051066
libcurl3-gnutls:amd64
ttf-mscorefonts-installer
imagemagick-6-common
linux-headers-5.10.66-051066-generic
systemd

Last 14 days:

evanmobley@evanmobley-XPS-13-9300:~$ find /var/lib/dpkg/info/ -name \*.list -mtime -14 | sed 's#.list$##;s#.*/##' 
systemd-timesyncd
pulseaudio-module-gsettings
libcurl4:amd64
qml-module-qtquick-window2:amd64
virtualbox-qt
qml-module-qtquick-layouts:amd64
apport
cpio
python3-apport
libmspack0:amd64
linux-headers-generic-hwe-20.04
systemd-sysv
qml-module-qtgraphicaleffects:amd64
libudev1:amd64
virtualbox-dkms
libgd3:amd64
ukuu-assets
udev
apt-transport-https
libinotifytools0:amd64
libgs9-common
libllvm12:amd64
squashfs-tools
linux-modules-5.10.66-051066-generic
aptitude-common
libqt5qmlmodels5:amd64
libpam-sss:amd64
firefox
libnss-systemd:amd64
linux-generic-hwe-20.04
firefoxpwa
qml-module-qtquick2:amd64
gnome-control-center-faces
libssh2-1:amd64
libboost-iostreams1.74.0:amd64
pulseaudio-module-zeroconf
paprefs
alsa-ucm-conf
thermald
curl
aria2
libgcrypt20:amd64
imagemagick
libgs9:amd64
libqt5qmlworkerscript5:amd64
qml-module-qtqml-models2:amd64
libqt5quick5:amd64
firefox-locale-en
snapd
linux-libc-dev:amd64
linux-modules-5.11.0-34-generic
virtualbox
linux-headers-5.11.0-34-generic
python3-problem-report
ocs-url
libsystemd0:amd64
libpam-systemd:amd64
libaria2-0:amd64
linux-modules-5.11.0-16-generic
aptitude
libc-ares2:amd64
linux-image-unsigned-5.10.66-051066-generic
linux-image-5.11.0-34-generic
vimix-gtk-theme
gnome-control-center-data
qml-module-qtquick-controls:amd64
wireless-regdb
code
cabextract
linux-modules-extra-5.11.0-34-generic
qml-module-qtqml:amd64
apport-gtk
ghostscript-x
libcwidget4:amd64
ukuu-gtk
google-chrome-stable
linux-headers-5.11.0-34
linux-image-5.11.0-16-generic
linux-headers-5.10.66-051066
libcurl3-gnutls:amd64
ukuu
inotify-tools
ttf-mscorefonts-installer
linux-modules-extra-5.11.0-16-generic
imagemagick-6-common
ghostscript
linux-headers-5.10.66-051066-generic
gnome-control-center
systemd
linux-image-generic-hwe-20.04

I am attempting to pxeboot and install Ubuntu 20.04 on my target computer configured to use UEFI.

My build server is a Raspberry Pi running Raspbian. I am using dnsmasq as the dhcp/dns/tftp server for my build network.

When I attempt to pxeboot the target computer, it gets a DHCP address, downloads BOOTX64.EFI, then downloads grubx64.efi, both from the TFTP server.

However, I'm then left at a grub prompt. In the grub CLI, $prefix is set to (tftp.192.168.105.1)/EFI/ubuntu. This appears to be the correct address for the build server. However, I can not do an ls $prefix command because it tells me error: disk 'tftp.192.168.105.1' not found.

In addition, /var/log/syslog on the boot server reports that BOOTX64.EFI and grubx64.efi have been downloaded, but does not record any errors when I attempt to do an ls $prefix.

I'm not clear why this isn't working (since the target computer can clearly access files on the TFTP server). Can anyone suggest something to look at or another approach to take?

I am trying to install a fresh Ubuntu 16 OS onto a computer - Lenovo Thinkpad X1 with Win10. I chose all the standard options on install, and ubuntu was installed, but no grub came up on startup. I made all the standard changes to Win10 before the installation like disable fast startup, make sure UEFI boot was enabled, secure boot is off. I used boot repair and get the following pastebin report: http://paste.ubuntu.com/p/DhsHXfFHnW/ Still no grub. My one time boot menu does not specify if the USB is uefi or not. I have already set bcdedit /set {bootmgr} path \EFI\ubuntu\shimx64.efi to make sure that the grub is given preference over windows bootloader. Am I missing something?

I am almost completely computer illiterate. I am attempting to repurpose an old computer for very limited use and need to access the internet wirelessly for my purposes. I have successfully installed Xubuntu onto the desktop and need to install the drivers (which I possess in disc form that came with the dongle and the disc does contain a driver file for Linux-based systems) to access my wireless network. I do not have a wired internet connection to access the internet. I do have the original install disc. The dongle was successfully installed onto the same computer on the Windows XP operating system immediately prior to installing Xubuntu.

How do I prompt the driver files to run? The file name is:

RTL88x2BU_WiFi_linux_v5.1.7_19806

within this file are the files:

Below is a screenshot of the terminal emulator with the commands entered that I was requested to provide:

Build essentials package:

● 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 am running into an issue with my Dell PowerEdgee R610. I am new to the Ubuntu server world but have ran ubuntu desktop many of times.

When trying to run the network configuration, DHCP is enabled on the server BIOS but for some reason is not pulling an IP address to Eno1-4.

I tried setting a static from what I have in my router for the server,

Subnet: 192.168.1.0/24
Ipv4 addr: 192.168.1.118
Gateway: 192.168.1.1
Name Server:8.8.8.8

I set static routes in my router.

Any ideas?

I also wanted to add that my LCC for the server does ping out to websites properly. It has an internet connection that can do so.

Image for troubleshooting:

dhclient -v

They were too large to upload to the post, and i couldnt find a way to save the CLI session on the bootable drive.

This is literally the most basic tool in a PDF viewer and it should be available in the top menu as the first tool. I can't find it in qpdfview? where is it?

I used to have Ubuntu as my only OS until I decided to get a new SSD and installed CentOS there. Now upon starting my computer I can't start Ubuntu without modifying the entry for Ubuntu first. I know how to do that, basically I change where it says:

linux /boot/vmlinuz...
initrd /boot/initrd.img...

to

linuxefi /boot/vmlinuz...
initrdefi /boot/initrd.img...

However, I need to make this change every time I want to start Ubuntu, thus my question: how do I make this change permanent?

I read this and this threads, but I'm not sure if the changes should be made in:

/boot/efi/EFI

or

/boot/grub/

or

/boot/grub2/

I can't also find the file with the exact line I change every time upon starting my computer. I suppose the file is named something like grub.cfg. In any case, I wouldn't like to tinker with one of those files without knowing 100% that I won't mess things up further. Also, should this change be made in Ubuntu or CentOS?

Any help would be greatly appreciated. Thanks!

PS: please note that Ubuntu and CentOS are installed in different SSDs, if that matters at all.

I have just upgraded from Ubuntu 12.04 LTS to Ubuntu 14.04 LTS running GNOME. The upgrade went smoothly.

My problem is that I cannot tweak the themes with gnome-tweak-tool. When I load gnome-tweak-tool I get the following error messages:

WARNING : Shell not installed or running
INFO    : GSettings missing key org.gnome.nautilus.desktop (key computer-icon-visible)
WARNING : Error detecting shell
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/gtweak/tweaks/tweak_group_shell_extensions.py", line 284, in __init__
    raise Exception("Shell not running or DBus service not available")
Exception: Shell not running or DBus service not available
WARNING : Shell not running

The gnome-tweak-tool windows are available but theme parameter changes in the Appearance tab do not work (you can write them in, but no effect and the default is restored upon exit).

The same problem occurs whether logged in with Metacity, Compiz, Ubuntu or GNOME.

When I run: if pgrep gnome-shell; then echo GNOME shell is running; else echo Nope not running;fi it answers Nope not running

When I log in as another user with root privileges, the same error and gnome-tweak-tool dysfunction occur.

I have now solved this problem. I can launch a functional Gnome Tweak Tool under Ubuntu 14.04 (or on another computer running 16.04 which presented the same problem) by entering "gnome-tweak-tool" in the Alt + F2 command line from any of the desktop flavours (GNOME, Ubuntu, Compiz, Metacity), but NOT from either a normal or a root terminal (which is widely implied on the web to be a valid method)!

I have a vps, which host some service only I used. Today, I found someone scaning my vps by

netstat -ntu | awk '{print $5}' |sort | uniq -c | sort -n

And found some result(I have removed my ip from below)

1 xxxxxxxxxxx:59564
1 xxxxxxxxxxx:59569
1 xxxxxxxxxxx:59570
1 xxxxxxxxxxx:59576
1 120.236.148.199:2226
1 127.0.0.1:41108
1 127.0.0.1:41148
1 127.0.0.1:41156
1 127.0.0.1:41158
1 127.0.0.1:41178
1 127.0.0.1:41180
1 183.61.236.54:3128
1 213.13.37.231:3128
1 218.244.149.184:8888
1 46.164.141.173:8080
1 58.96.172.205:8888
1 Address
1 servers)
2 ::1:9988
2 219.156.157.186:80
10 127.0.0.1:3306
11 127.0.0.1:3999

I have some webservice only for myself, I want to ban all ip once they access other ports, but there are some problems.

1. I setup a socks5 proxy on 8699, but it seems open some other port to serve my connection:

   tcp6       0      0 default.hostname:8699   my_vps_ip_here.bro:59570 ESTABLISHED
   tcp6       0      0 default.hostname:8699   my_vps_ip_here.bro:59576 ESTABLISHED
   tcp6       0      0 default.hostname:8699   my_vps_ip_here.bro:59564 ESTABLISHED
   tcp6       0      0 default.hostname:8699   my_vps_ip_here.bro:59569 ESTABLISHED
   

   netstat -ntu | awk '{print $5}' |sort | uniq -c | sort -n doesn't shows I am connecting 8699, only shows 59570, 59576, 59564, 59569. What is the correct rule for this case ?

2. What is the recommended way to automatically ban IP? I only come up with: keep check the result of netstat -ntu | awk '{print $5}' |sort | uniq -c | sort -n every second, and add bad ip to iptables.

3. I know iptables and ufw can ban ip, ufw looks more like a manager, but is there any better choice ?

I'd like to simply show a testsource using gstreamer-1.0. When I use (I guess) non-accelerated output gst-launch-1.0 videotestsrc ! xvimagesink everything works find, but when I try to play it like gst-launch-1.0 videotestsrc ! autovideosink I get the following error:

Setting pipeline to PAUSED ...
libva info: VA-API version 0.35.0
X Error of failed request:  BadRequest (invalid request code or no such operation)
  Major opcode of failed request:  153 (DRI2)
  Minor opcode of failed request:  1 (DRI2Connect)
  Serial number of failed request:  15
  Current serial number in output stream:  15

I've installed NVIDIA-Linux-x86_64-367.44.run on Ubuntu 14.04.5 as follows:

1. Remove old drivers: sudo apt-get remove --purge nvidia*
2. Blacklist the old driver by the run script (It asks you to do so, quit after it)
3. Reboot
4. Stop the services: service lightdm stop && service x11-common stop
5. Install the driver: ./NVIDIA-Linux-x86_64-367.44.run --no-x-check
6. Installed VA stuff concerning https://wiki.ubuntuusers.de/Video-Dekodierung_beschleunigen/: sudo apt-get install libvdpau1 vdpauinfo vdpau-va-driver vainfo
7. Reboot

Here are some helpful outputs, which still deliver errors:

$ lspci -nnk | grep -i VGA -A2 
05:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK106 [GeForce GTX 660] [10de:11c0] (rev a1)
        Subsystem: Gigabyte Technology Co., Ltd Device [1458:354e]
        Kernel driver in use: nvidia

$ vainfo
libva info: VA-API version 0.35.0
X Error of failed request:  BadRequest (invalid request code or no such operation)
  Major opcode of failed request:  153 (DRI2)
  Minor opcode of failed request:  1 (DRI2Connect)
  Serial number of failed request:  11
  Current serial number in output stream:  11

$ glxinfo 
name of display: localhost:10.0
X Error of failed request:  GLXBadContext
  Major opcode of failed request:  154 (GLX)
  Minor opcode of failed request:  6 (X_GLXIsDirect)
  Serial number of failed request:  20
  Current serial number in output stream:  20

$ uname -a
Linux alpia 4.4.0-38-generic #57~14.04.1-Ubuntu SMP Tue Sep 6 17:20:43 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

$ cat /var/log/Xorg.0.log | grep driver
[   127.579] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[   127.579]    X.Org XInput driver : 22.1
[   127.786] (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
[   128.733] (II) NVIDIA(0): [DRI2]   VDPAU driver: nvidia
[   128.815]    ABI class: X.Org XInput driver, version 22.1
[   128.815] (II) Using input driver 'evdev' for 'Power Button'
[   128.830] (II) Using input driver 'evdev' for 'Power Button'
[   128.831] (II) No input driver specified, ignoring this device.
[   128.831] (II) No input driver specified, ignoring this device.
[   128.831] (II) No input driver specified, ignoring this device.
[   128.831] (II) No input driver specified, ignoring this device.
[   128.832] (II) No input driver specified, ignoring this device.
[   128.832] (II) No input driver specified, ignoring this device.
[   128.832] (II) No input driver specified, ignoring this device.
[   128.832] (II) No input driver specified, ignoring this device.
[   128.832] (II) No input driver specified, ignoring this device.
[   128.832] (II) No input driver specified, ignoring this device.
[   128.833] (II) No input driver specified, ignoring this device.
[   128.833] (II) No input driver specified, ignoring this device.
[   128.833] (II) Using input driver 'evdev' for 'DELL Dell USB Entry Keyboard'
[   128.833] (II) Using input driver 'evdev' for 'USB Optical Mouse'
[   128.834] (II) No input driver specified, ignoring this device.

Does anybody have a hint? I know that it worked once with this PC following the instructions, but now something seems to be broken.

I am facing difficulties connecting to wifi on my Lenovo Flex 3 1480 laptop on Ubuntu 14.04. It works fine on Windows. I am attaching wireless-info.txt that I got from : http://ubuntuforums.org/showthread.php?t=370108

########## wireless info START ##########

Report from: 25 Jan 2016 13:52 MST -0700
Booted last: 25 Jan 2016 13:47 MST -0700
Script from: 27 Sep 2015 00:34 UTC +0000

##### release ###########################

Distributor ID: Ubuntu
Description:    Ubuntu 14.04.3 LTS
Release:    14.04
Codename:   trusty

##### kernel ############################

Linux 3.19.0-49-generic #55~14.04.1-Ubuntu SMP Fri Jan 22 11:24:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=7

##### desktop ###########################

sed: can't read /root/.dmrc: No such file or directory

Could not be determined.

##### lspci #############################

02:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0042] (rev 30)
    Subsystem: Lenovo Device [17aa:4035]

03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
    Subsystem: Lenovo Device [17aa:3835]
    Kernel driver in use: r8169

##### lsusb #############################

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0cf3:e360 Atheros Communications, Inc. 
Bus 001 Device 004: ID 04f3:2083 Elan Microelectronics Corp. 
Bus 001 Device 003: ID 5986:0670 Acer, Inc 
Bus 001 Device 002: ID 046d:c535 Logitech, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

##### PCMCIA card info ##################

##### rfkill ############################

0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

##### lsmod #############################

mac80211              638976  0 
cfg80211              532480  1 mac80211
compat                 28672  2 cfg80211,mac80211
ideapad_laptop         24576  0 
sparse_keymap          16384  1 ideapad_laptop
wmi                    20480  0 

##### interfaces ########################

auto lo
iface lo inet loopback

##### ifconfig ##########################

eth0      Link encap:Ethernet  HWaddr   
          inet addr:10.218.104.240  Bcast:10.218.111.255  Mask:255.255.248.0
          inet6 addr: fe80::/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8295 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1212 errors:0 dropped:25 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1871640 (1.8 MB)  TX bytes:156822 (156.8 KB)

##### iwconfig ##########################

eth0      no wireless extensions.

lo        no wireless extensions.

##### route #############################

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.218.104.1    0.0.0.0         UG    0      0        0 eth0
10.218.104.0    0.0.0.0         255.255.248.0   U     1      0        0 eth0

##### resolv.conf #######################

nameserver 127.0.1.1
search cidse.dhcp.asu.edu

##### network managers ##################

Installed:

    NetworkManager

Running:

root      1017     1  0 13:47 ?        00:00:00 NetworkManager

##### NetworkManager info ###############

NetworkManager Tool

State: connected (global)

- Device: eth0  [Wired connection 1] -------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             connected
  Default:           yes
  HW Address:        

  Capabilities:
    Carrier Detect:  yes
    Speed:           1000 Mb/s

  Wired Properties
    Carrier:         on

  IPv4 Settings:
    Address:         10.218.104.240
    Prefix:          21 (255.255.248.0)
    Gateway:         10.218.104.1

    DNS:             129.219.17.200
    DNS:             129.219.17.5
    DNS:             129.219.13.81

##### NetworkManager.state ##############

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true

##### NetworkManager.conf ###############

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false

##### NetworkManager profiles ###########

[[/etc/NetworkManager/system-connections/Wi-Fi connection 1]] (600 root)
[connection] id=Wi-Fi connection 1 | type=802-11-wireless
[802-11-wireless] ssid=asu
[ipv6] method=auto
[ipv4] method=auto

##### iw reg get ########################

Region: America/Phoenix (based on set time zone)

country 00:
    (2402 - 2472 @ 40), (3, 20)
    (2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
    (2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
    (5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
    (5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS

##### iwlist channels ###################

eth0      no frequency information.

lo        no frequency information.

##### iwlist scan #######################

eth0      Interface doesn't support scanning.

lo        Interface doesn't support scanning.

##### module infos ######################

[mac80211]
filename:       /lib/modules/3.19.0-49-generic/updates/dkms/mac80211.ko
license:        GPL
description:    IEEE 802.11 subsystem
version:        backported from  () using backports 
srcversion:     BEF453E7AC487F911F8EDBF
depends:        cfg80211,compat
vermagic:       3.19.0-49-generic SMP mod_unload modversions 
parm:           max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm:           max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm:           beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm:           probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm:           ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)

[cfg80211]
filename:       /lib/modules/3.19.0-49-generic/updates/dkms/cfg80211.ko
version:        backported from  () using backports 
description:    wireless configuration support
license:        GPL
author:         Johannes Berg
srcversion:     F6775E4370E54D5795E4BE2
depends:        compat
vermagic:       3.19.0-49-generic SMP mod_unload modversions 
parm:           ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm:           cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

##### module parameters #################

[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
probe_wait_ms: 500

[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00

##### /etc/modules ######################

lp
rtc

##### modprobe options ##################

[/etc/modprobe.d/ath10k_core.conf]
options ath10k_core skip_otp=y

[/etc/modprobe.d/ath10k-dkms.conf]
options ath10k_core skip_otp=1

[/etc/modprobe.d/ath9k.conf]
options ath9k nohwcrypt=1

[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci

[/etc/modprobe.d/blacklist-bcm43.conf]
blacklist b43
blacklist b43legacy
blacklist ssb
blacklist bcm43xx
blacklist brcm80211
blacklist brcmfmac
blacklist brcmsmac
blacklist bcma

[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac

[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off

[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211

[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en

##### rc.local ##########################

exit 0

##### pm-utils ##########################

##### udev rules ########################

[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x10ec:0x8168 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

##### dmesg #############################

[   13.723430] wl: module license 'MIXED/Proprietary' taints kernel.
[   13.725722] wl: disagrees about version of symbol wiphy_new_nm
[   13.725723] wl: Unknown symbol wiphy_new_nm (err -22)
[   13.725736] wl: disagrees about version of symbol wiphy_register
[   13.725737] wl: Unknown symbol wiphy_register (err -22)
[   13.725783] wl: disagrees about version of symbol wiphy_unregister
[   13.725784] wl: Unknown symbol wiphy_unregister (err -22)
[   13.725798] wl: disagrees about version of symbol __ieee80211_get_channel
[   13.725799] wl: Unknown symbol __ieee80211_get_channel (err -22)
[   13.725832] wl: disagrees about version of symbol wiphy_free
[   13.725833] wl: Unknown symbol wiphy_free (err -22)
[   14.123327] ath: disagrees about version of symbol wiphy_apply_custom_regulatory
[   14.123331] ath: Unknown symbol wiphy_apply_custom_regulatory (err -22)
[   14.123338] ath: disagrees about version of symbol __ieee80211_get_channel
[   14.123339] ath: Unknown symbol __ieee80211_get_channel (err -22)
[   14.123346] ath: disagrees about version of symbol freq_reg_info
[   14.123347] ath: Unknown symbol freq_reg_info (err -22)
[   21.831480] r8169 0000:03:00.0 eth0: link down
[   21.831527] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   26.392468] r8169 0000:03:00.0 eth0: link up
[   26.392477] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   51.394064] r8169 0000:03:00.0 eth0: link down (repeated 2 times)
[  120.582163] r8169 0000:03:00.0 eth0: link up

########## wireless info END ############

Please indicate why I am getting "network unclaimed". I have tried following the following, without any positive results. Ethernet works fine.

https://askubuntu.com/a/708103/497674 https://askubuntu.com/a/481221/497674

Edit 1: Adding dkms status

root@ankita-Flex-3-1480:/home/ankita# dkms status
backath10k, 2.0, 3.13.0-77-generic, x86_64: installed
backath10k, 2.0, 3.19.0-47-generic, x86_64: installed
backath10k, 2.0, 3.19.0-49-generic, x86_64: installed
bcmwl, 6.30.223.248+bdcom, 3.13.0-77-generic, x86_64: installed
bcmwl, 6.30.223.248+bdcom, 3.19.0-47-generic, x86_64: installed
bcmwl, 6.30.223.248+bdcom, 3.19.0-49-generic, x86_64: installed
root@ankita-Flex-3-1480:/home/ankita# sudo apt-get remove bcmwl-kernel-source broadcom-sta-common broadcom-sta-dkms
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package broadcom-sta-common
E: Unable to locate package broadcom-sta-dkms

Thanks in advance

I had recently been running Ubuntu Gnome 13.10 with the classic desktop enabled. At the login menu, it would show a few options:

    System Default
    GNOME
    GNOME Classic
    GNOME Flashback (metacity)
    GNOME Flashback (compiz)

I would select GNOME Classic to login. It would show an interface like the following post: http://www.linuxbsdos.com/2013/07/08/gnome-3-classic-is-more-of-a-hybrid-desktop/

The main features were the Applications / Places menu. When you would hit the super button it would bring up the dash (as well as moving the mouse to the upper right hand corner). The menu would show a favorites and at the bottom it would show Activites.

At the bottom of the screen, the task pane was present.

I've now upgraded to Ubuntu Gnome 14.04. I have the GNOME Flashback metacity/compiz, but I do not have the GNOME Classic. I was really happy with this hybrid interface. Does anyone know how I can bring it back?

I don't see the option for NFS most wanted 2 in the install menu for playonlinux. Does that mean its not supported ? Will it work with WINE? Has anybody already done it?

I just installed Ubuntu and I am enjoying its refreshing look, however when I click pictures or videos nothing loads at all. Even my Downloads folder shows as empty.

Where are all my files from my Windows account? It's just me on the computer and no other user. Why is this happening and how can I fix it?

Also where are all my files I created in Windows like my My Documents folder and subfolders in my My Documents folder?

Does anyone know the (specific) reasons that it is recommended that old LTS server users wait until the point release to upgrade? Is it just a matter of bug fixes and waiting for improved stability for production servers, or is there something more fundamental than that?