After updating to 26.04, the icons in the app grid got significally smaller and the padding seems a bit off, especially on very wide monitors..
How can I "restore" or fix the app grid without using extensions?
Hi just had my pc redone the girl put Linsux on it I am unfamiliar with it it didnt down load a microphone
I tried installation of both server and desktop installations today, both as VMs on Hyper-V. The experience couldn´t be more different. I suspect it is because the installation is also a live experience, but comparing the two looks really strange to me, with all those duplications and differences.
Two examples:
the desktop installation supports use of TPM for FDE, whereas the server installation does not. Neither supports Clevis & Tang, which would make sense in an enterprise environment.
also, the desktop installation supports active directory integration, whereas the server install does not. As I am running mostly server installs, I´d appreciate if active directory integration would be an installation option.
I also encountered two (supposed) bugs:
For the desktop with TPM test I activated the virtual TPM of Hyper-V. Windows 11 runs fine with that. Ubuntu 26.04 install complains with the following:
error with TPM2 devices: TPM2 device is present but is not a PC-Client TPM
Does it matter at all, whether it is a PC-Client TPM or not?
The other is that I activated active directory during installation, but couldn´t login using active directory. How can I analyze the reason for that?
My goal is to create a bootable USB drive with Ubuntu 24.04 that includes an autoinstall configuration. I’m relatively new to Linux and Ubuntu, so I may be missing something basic.
I’m able to successfully create a standard bootable USB using the official ubuntu-24.04.4-desktop-amd64.iso. However, when I try to customize the ISO, I run into problems.
Here’s what I’m doing:
I extract the contents of the original ISO:
sudo rsync -av ~/iso_mod/mount/ ~/iso_mod/extracted/
I then rebuild the ISO using:
sudo xorriso -as mkisofs -r \
-V "Ubuntu 24.04 Custom" \
-o custom-ubuntu-24.04.iso \
-J -l \
-b boot/grub/i386-pc/eltorito.img \
-c boot.catalog \
-no-emul-boot -boot-load-size 4 -boot-info-table \
--grub2-boot-info \
-eltorito-alt-boot \
-e efi.img \
-no-emul-boot -isohybrid-gpt-basdat \
./extracted
Finally, I write the ISO to a USB drive:
sudo dd if=/home/gene/iso_mod/custom-ubuntu-24.04.iso of=/dev/sdb bs=4M conv=fsync status=progress
The issue is that the resulting USB drive is not recognized as bootable on the target desktop system.
What am I missing in this process? Is there a reliable guide or resource that explains how to correctly modify and rebuild a bootable Ubuntu ISO with autoinstall support?
I realize that these steps just recreate the ISO but it doesn't work and if I can't get that working I will not be able to get autoinstall working.
Thank you for your help.
I have tried to visit the official Ubuntu website, but it seems to fail with 503. Can anyone share any information they might know about this issue?
I ran sudo apt install wine command to install wine on my computer but below error occurred. I didn't check if it is working. What should I do?
Error: Failed to fetch https://mirror.cs.odu.edu/ubuntu/pool/main/f/flac/libflac14_1.5.0%2bds-2_i386.deb OpenSSL error: error:0A000126:SSL routines::unexpected eof while reading [IP: 128.82.4.140 443]
Error: Unable to fetch some archives, maybe run apt update or try with --fix-missing?
"I manually compiled the MEDIATEK Corp. MT7902 network controller on Ubuntu 26.04 (kernel 7.0.0-14-generic) and it’s working fine. However, I can't get it to compile on the 7.0.0-15-generic kernel."
I've been having trouble getting multipass to run ubuntu instances on Apple Silicon M2 and M3.
The problem, at launch, is:
[2026-04-30T16:33:59.021] [error] [pluto] process error occurred Crashed program: qemu-system-aarch64; error: Process crashed
--
[2026-04-30T16:38:30.684] [debug] [arp] [74162] started: arp -an
[2026-04-30T16:38:30.783] [debug] [pluto] QMP: {"QMP": {"version": {"qemu": {"micro": 1, "minor": 2, "major": 8}, "package": ""}, "capabilities": ["oob"]}}
[2026-04-30T16:38:30.823] [warning] [pluto] Unexpected error in object_property_find_err() at ../../../qom/object.c:1330:
qemu-system-aarch64: Property 'host-arm-cpu.sme' not found
macOS 26.4.1 25E253
Apple Macbook Air M5
I have tried all sorts of thing, uninstalling, installing with brew from source, using the qemu version from ports. It would be wonderful to have a solution!
I wrote a small bash script to handle conda initialization outside .bashrc, then aliased it in .bashrc
alias startconda='source /home/ade/.adebin/conda_init.sh'
conda_init.sh:
#!/bin/bash
if [ x"${CONDA_EXE}" == "x" ]; then
# >>> conda initialize >>>
# !! Contents within this block are managed by 'conda init' !!
__conda_setup="$('/home/ade/anaconda3/bin/conda' 'shell.bash' 'hook' 2> /dev/null)"
if [ $? -eq 0 ]; then
eval "$__conda_setup"
echo "aqui"
else
if [ -f "/home/ade/anaconda3/etc/profile.d/conda.sh" ]; then
. "/home/ade/anaconda3/etc/profile.d/conda.sh"
else
export PATH="/home/ade/anaconda3/bin:$PATH"
fi
fi
unset __conda_setup
# <<< conda initialize <<<
#Login messages
echo "bash-conda-init: Conda initialized"
echo "bash-conda-init: Conda environment settup"
fi
#eval "$('conda' 'activate')"
conda activate
if [ x"${CONDA_EXE}" == "x" ]; then
echo "Not set or null"
else
echo "set"
fi
The problem is that it only affects my current shell session. Is there a way to make it apply to all sessions, that is, each time I open a new terminal?
This has been going on for a few days now. My computer did a major update, and after that my computer struggles with Skyrim LE even though it had no issue at all before that. The spikes mainly happen during combat, particularly dragon fights, making the game nigh impossible to play. Even simply walking around is grueling because of the lag spikes.
I tried to change my emulator to proton 10 ge from proton 8 ge, but that only made my game run worse. I tried to revert to the last version, but that just made my computer freeze. I did this through the menu that comes up if you press esc during start up. Its the same menu that appears after a major update at times. I selected version 5, but as stated that didn't end well. I even reinstalled my graphics driver, but that made no difference at all either.
I'm at a loss as to what else to do. I can't continue my playthrough because my game is now practically unplayable even though it was fine just before. I was hoping another update would fix this after people complained, but nothing has happened other than updates for something called iproute2. I can't even find an option on my comp to issue a report about the problem I'm having.
What else can I do here?
And no, my steam is NOT installed through snap. I learned that the hard way when I first installed ubuntu years ago.
I have set the VM up with Generation 2, 4GB RAM, 127GB HDD.
The physical disk it is installing on is mechanical.
I am running Windows 10
I have been through all the steps to start the install. I have connected to the internet and opted to install all recommended proprietary software. No Encryption.
It seems to be stuck with an orange bar moving at the bottom and saying 'Installing the system'.
I have pressed the button on the bottom right and the last entry says, "rsync error: error in rsync protocol data stream (code 12) at oi.c(232)
Could someone please let me know what is goin on. I am going to leave it as is overnight and will check in morning.
I have uploaded a picture of the log.
After installing Ubuntu 26.04 I updated the snap packages and it went fine, but when trying to do a sudo apt update or install an application with apt I get the following errors:
Ign:1 file:/cdrom resolute InRelease
Err:2 file:/cdrom resolute Release
File not found - /cdrom/dists/resolute/Release (2: No such file or directory)
Hit:3 http://security.ubuntu.com/ubuntu resolute-security InRelease
Hit:4 http://ba.archive.ubuntu.com/ubuntu resolute InRelease
Hit:5 http://ba.archive.ubuntu.com/ubuntu resolute-updates InRelease
Hit:6 http://ba.archive.ubuntu.com/ubuntu resolute-backports InRelease
Error: The repository 'file:/cdrom resolute Release' no longer has a Release file.
Notice: Updating from such a repository can't be done securely, and is therefore disabled by default.
Notice: See apt-secure(8) manpage for repository creation and user configuration details.
Err:1 http://ba.archive.ubuntu.com/ubuntu resolute/universe amd64 libostree-1-1 amd64 2025.6-1
404 Not Found [IP: 2a03:3320:387:c387::20 80]
Err:2 http://ba.archive.ubuntu.com/ubuntu resolute/universe amd64 flatpak amd64 1.16.1-3ubuntu1
404 Not Found [IP: 2a03:3320:387:c387::20 80]
Error: Failed to fetch http://ba.archive.ubuntu.com/ubuntu/pool/universe/o/ostree/libostree-1-1_2025.6-1_amd64.deb 404 Not Found [IP: 2a03:3320:387:c387::20 80]
Error: Failed to fetch http://ba.archive.ubuntu.com/ubuntu/pool/universe/f/flatpak/flatpak_1.16.1-3ubuntu1_amd64.deb 404 Not Found [IP: 2a03:3320:387:c387::20 80]
Error: Unable to fetch some archives, maybe run apt update or try with --fix-missing?
This issue is most certainly because the mirror that was chosen automatically doesn't work. I have encountered this issue on ubuntu 24.04 as well when I tried it but I simply fixed it by using the tool Software & Updates which is now removed. Since you can't install that tool you also can't fix the problem graphically. I fixed the problem by editing the /etc/apt/sources.list.d/ubuntu.sources file and changing it to the global mirror. Shouldn't there be a way for the system to automatically detect if the mirror is working and then if does not to fallback to the global mirror? Or better yet to find the fastest working mirror relative to your location and to set that. Also, during installation at the end it said that there was an error but when I restarted my PC ubuntu was installed. I guess that the error when I run sudo apt update is causing that. I haven't gotten in to fixing that.
I am running Ubuntu 25.10 and my Software Updater app is configured for "Notify me of a new Ubuntu version: For any new version" but 26.04 is not yet showing up. When will it be available for the Software Updater?
Please note I am asking about updating from 25.10 to 26.04 and the questions in the the link you say answers my question are about updating LTS versions, ie from 24.04 to 26.04. I see a difference there but if you want to remove my question go ahead.
i did some basic tweak for supressing the Wayland Display, but could not set to x11.
Can someone post how i can disable Wayland and continue on X11 i haev some apps that dont support Wayland.
I’m making use of an old (2012) MacBook Pro. Great little machine, but Apple is no longer supporting my OS. I’ve never used Linux software to my knowledge and am apprehensive on which OS will best suit my needs. My biggest concern is the learning curve. Is there an OS that is most similar to a version of MacOS so that I can soften the shift? Furthermore, I do a boatload of work using DSP (Digital Sound Processing) software, specifically SigmaStudio, which is a “windows only” software. I realize that my Mac wouldn’t run it anyway, but I’m curious if anyone knows of a Linux compatible software that will connect and tune the ADAU14xx and ADAU17xx DSP chipsets, or any other mainstream chipsets on the market that are in this general realm.
Thanks for the help.
I've just installed Ubuntu 26.04 on my PC. I am using the built in Gnome Remote Desktop, however it is a bit unstable, as the connection will be working for a few hours and then it crashes so I cannot connect again. The only fix I have been able to get working is to SSH into the machine and reboot.
I have tried the following commands via SSH as well, but none of them seem to fix the problem.
systemctl --user restart gnome-remote-desktop
pkill -f gnome-remote-desktop
killall -1 gnome-shell
sudo ss -lntp | grep 3389
sudo kill -9 \<PID\>
I have relatively little experience with Linux, so I'm unsure where to find logs or how to debug this problem.
We are running a bunch of containers for a cyber security teaching environment, where students can execute arbitrary commands (unprivileged).
Our system (Ubuntu 24.04.4 LTS) is affected by the recently-published "Copy Fail" vulnerability (CVE-2026-31431).
Unfortunately, updating did not produce any new kernel packages, and we are still stuck with 6.8.0-110:
# uname -a
Linux teaching-host 6.8.0-110-generic #110-Ubuntu SMP PREEMPT_DYNAMIC Thu Mar 19 15:09:20 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux
$ cat exploit.py | python3 && su
# id
uid=0(root) gid=1000(user) groups=1000(user),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),101(lxd),988(docker)
How can we harden our system until an official patch package becomes available?
I have an ASUS TUF Gaming F16 with an RGB backlit keyboard. How can I configure the COLOR of the keyboard and any effects, not just the brightness? I hate the default color changing effect and I just want it solid green.
GSK_renderer=cairo significantly reduces the memory usage of GTK4 apps.
I am thinking about applying it to some of my low-end computers by adding it to /etc/environment. However, I don't want to turn off system-wide hardware acceleration.
By any chance, does this environment variable stop system-wide hardware acceleration, or is it only for GTK4 apps?
Today I upgraded to Kubuntu 26.04.
Moving my mouse coursor onto my second monitor using Wayland (Plasma) will permanently freeze the video output. This also happens in the login screen. I am able to circumvent it by using awesome-wm, but strongly prefer plasma. And it only occures when moving the mouse coursor there, having applications open and using keyboard shortcuts does not trigger it. Disabling the internal screen and just using the external one also does not help.
System is still running, as I am able to ssh in and reboot it.
I am on an optimus notebook with a 1060 6GB with kernel 7.0.0-14-generic, the following appears in the syslog:
2026-04-28T20:44:45.473990+02:00 notebook kernel: BUG: kernel NULL pointer dereference, address: 0000000000000028
2026-04-28T20:44:45.474007+02:00 notebook kernel: #PF: supervisor read access in kernel mode
2026-04-28T20:44:45.474009+02:00 notebook kernel: #PF: error_code(0x0000) - not-present page
2026-04-28T20:44:45.474009+02:00 notebook kernel: PGD 800000013626e067 P4D 800000013626e067 PUD 0
2026-04-28T20:44:45.474018+02:00 notebook kernel: Oops: Oops: 0000 [#1] SMP PTI
2026-04-28T20:44:45.474018+02:00 notebook kernel: CPU: 5 UID: 1000 PID: 2469 Comm: kwin_wayland Tainted: P OE 7.0.0-14-generic #14-Ubuntu PREEMPT(lazy)
2026-04-28T20:44:45.474019+02:00 notebook kernel: Tainted: [P]=PROPRIETARY_MODULE, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
2026-04-28T20:44:45.474019+02:00 notebook kernel: Hardware name: Notebook N85_87HP6/N85_87HP6, BIOS 1.05.08RTM 08/08/2017
2026-04-28T20:44:45.474020+02:00 notebook kernel: RIP: 0010:_nv000582kms+0x4/0x10 [nvidia_modeset]
2026-04-28T20:44:45.474020+02:00 notebook kernel: Code: 87 50 01 00 00 20 20 2d c8 48 c7 87 38 01 00 00 70 1e 2d c8 48 c7 87 40 01 00 00 40 22 2d c8 c3 66 0f 1f 44 00 00 f3 0f 1e fa <0f> b6 47 28 c3 0f 1f 80 00 00 00 00 89 c9 48 8d 04 49 48 c1 e0 04
2026-04-28T20:44:45.474021+02:00 notebook kernel: RSP: 0018:ffffd54649d13af0 EFLAGS: 00010293
2026-04-28T20:44:45.474021+02:00 notebook kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffc82d2660
2026-04-28T20:44:45.474022+02:00 notebook kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
2026-04-28T20:44:45.474022+02:00 notebook kernel: RBP: ffffd54649d13bb0 R08: 0000000000000000 R09: 0000000000000000
2026-04-28T20:44:45.474022+02:00 notebook kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffff8e0a87433500
2026-04-28T20:44:45.474023+02:00 notebook kernel: R13: ffffd54649d13b38 R14: ffff8e0a87433508 R15: 0000000000000000
2026-04-28T20:44:45.474023+02:00 notebook kernel: FS: 000075158ac2de80(0000) GS:ffff8e0e6a080000(0000) knlGS:0000000000000000
2026-04-28T20:44:45.474024+02:00 notebook kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
2026-04-28T20:44:45.474024+02:00 notebook kernel: CR2: 0000000000000028 CR3: 000000017739e005 CR4: 00000000003706f0
2026-04-28T20:44:45.474024+02:00 notebook kernel: Call Trace:
2026-04-28T20:44:45.474025+02:00 notebook kernel: <TASK>
2026-04-28T20:44:45.474025+02:00 notebook kernel: ? nv_drm_framebuffer_create+0x2fa/0x760 [nvidia_drm]
2026-04-28T20:44:45.474026+02:00 notebook kernel: drm_internal_framebuffer_create+0x100/0x210
2026-04-28T20:44:45.474026+02:00 notebook kernel: drm_mode_addfb2+0x51/0x120
2026-04-28T20:44:45.474027+02:00 notebook kernel: ? __pfx_drm_prime_fd_to_handle_ioctl+0x10/0x10
2026-04-28T20:44:45.474027+02:00 notebook kernel: ? __pfx_drm_mode_addfb2_ioctl+0x10/0x10
2026-04-28T20:44:45.474027+02:00 notebook kernel: drm_mode_addfb2_ioctl+0xe/0x20
2026-04-28T20:44:45.474028+02:00 notebook kernel: drm_ioctl_kernel+0xb5/0x110
2026-04-28T20:44:45.474028+02:00 notebook kernel: drm_ioctl+0x309/0x5f0
2026-04-28T20:44:45.474028+02:00 notebook kernel: ? __pfx_drm_mode_addfb2_ioctl+0x10/0x10
2026-04-28T20:44:45.474029+02:00 notebook kernel: nv_drm_ioctl+0x38/0x3f0 [nvidia_drm]
2026-04-28T20:44:45.474029+02:00 notebook kernel: ? __x64_sys_ioctl+0xbd/0x100
2026-04-28T20:44:45.474030+02:00 notebook kernel: __x64_sys_ioctl+0xa3/0x100
2026-04-28T20:44:45.474030+02:00 notebook kernel: ? putname+0x41/0x90
2026-04-28T20:44:45.474030+02:00 notebook kernel: x64_sys_call+0x103b/0x2390
2026-04-28T20:44:45.474031+02:00 notebook kernel: do_syscall_64+0x115/0x5a0
2026-04-28T20:44:45.474043+02:00 notebook kernel: ? __x64_sys_openat+0x5f/0xa0
2026-04-28T20:44:45.474044+02:00 notebook kernel: ? arch_exit_to_user_mode_prepare.isra.0+0xd/0xe0
2026-04-28T20:44:45.474044+02:00 notebook kernel: ? do_syscall_64+0x150/0x5a0
2026-04-28T20:44:45.474045+02:00 notebook kernel: ? sysvec_apic_timer_interrupt+0x54/0xd0
2026-04-28T20:44:45.474045+02:00 notebook kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e
2026-04-28T20:44:45.474046+02:00 notebook kernel: RIP: 0033:0x751591732cbd
2026-04-28T20:44:45.474046+02:00 notebook kernel: Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
2026-04-28T20:44:45.474046+02:00 notebook kernel: RSP: 002b:00007ffe69e33c10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
2026-04-28T20:44:45.474047+02:00 notebook kernel: RAX: ffffffffffffffda RBX: 00007ffe69e33df4 RCX: 0000751591732cbd
2026-04-28T20:44:45.474048+02:00 notebook kernel: RDX: 00007ffe69e33ca0 RSI: 00000000c06864b8 RDI: 0000000000000101
2026-04-28T20:44:45.474049+02:00 notebook kernel: RBP: 00007ffe69e33c60 R08: 00007ffe69e33e50 R09: 00006223a6af1ca8
2026-04-28T20:44:45.474050+02:00 notebook kernel: R10: 0000751594f2769b R11: 0000000000000246 R12: 00007ffe69e33ca0
2026-04-28T20:44:45.474051+02:00 notebook kernel: R13: 00000000c06864b8 R14: 0000000000000101 R15: 00006223a6af1c70
2026-04-28T20:44:45.474052+02:00 notebook kernel: </TASK>
2026-04-28T20:44:45.474066+02:00 notebook kernel: Modules linked in: ccm udp_diag ib_core tcp_diag inet_diag xt_conntrack xt_MASQUERADE bridge stp llc xfrm_user xfrm_algo xt_set ip_set nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_addrtype nft_compat x_tables nf_tables vxlan ip6_udp_tunnel udp_tunnel rfcomm snd_seq_dummy snd_hrtimer overlay vboxnetadp(OE) qrtr vboxnetflt(OE) cmac algif_hash algif_skcipher af_alg bnep vboxdrv(OE) ccp binfmt_misc nvidia_uvm(PO) intel_rapl_msr intel_rapl_common intel_uncore_frequency intel_uncore_frequency_common snd_hda_codec_intelhdmi nvidia_drm(PO) nvidia_modeset(PO) intel_tcc_cooling snd_hda_codec_alc269 x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek_lib snd_hda_scodec_component snd_hda_codec_nvhdmi snd_hda_codec_generic snd_hda_codec_hdmi snd_soc_avs kvm_intel snd_soc_hda_codec iwlmvm snd_hda_intel snd_hda_ext_core snd_hda_codec snd_hda_core snd_intel_dspcfg snd_intel_sdw_acpi snd_hwdep snd_seq_midi kvm mac80211 snd_seq_midi_event snd_soc_core uvcvideo videobuf2_vmalloc uvc irqbypass
2026-04-28T20:44:45.474067+02:00 notebook kernel: snd_compress ac97_bus libarc4 rapl videobuf2_memops ee1004 btusb btmtk nvidia(PO) mei_hdcp mei_pxp intel_cstate snd_rawmidi snd_pcm_dmaengine mxm_wmi iwlwifi videobuf2_v4l2 videobuf2_common i2c_i801 snd_seq i2c_smbus btrtl videodev snd_pcm btbcm btintel snd_seq_device i915 i2c_mux cfg80211 mc bluetooth drm_buddy nls_iso8859_1 snd_timer drm_display_helper snd cec mei_me soundcore rc_core drm_ttm_helper ttm mei i2c_algo_bit intel_pmc_core pmt_telemetry pmt_discovery pmt_class intel_pmc_ssram_telemetry intel_vsec acpi_pad input_leds joydev mac_hid sch_fq_codel parport_pc lp ppdev coretemp parport msr nvme_fabrics efi_pstore nfnetlink dmi_sysfs autofs4 wacom hid_generic usbhid hid psmouse nvme rtsx_pci_sdmmc serio_raw ghash_clmulni_intel r8169 nvme_core nvme_keyring nvme_auth hkdf realtek rtsx_pci video ahci wmi libahci aesni_intel
2026-04-28T20:44:45.474068+02:00 notebook kernel: CR2: 0000000000000028
2026-04-28T20:44:45.474068+02:00 notebook kernel: ---[ end trace 0000000000000000 ]---
2026-04-28T20:44:45.474069+02:00 notebook kernel: RIP: 0010:_nv000582kms+0x4/0x10 [nvidia_modeset]
2026-04-28T20:44:45.474070+02:00 notebook kernel: Code: 87 50 01 00 00 20 20 2d c8 48 c7 87 38 01 00 00 70 1e 2d c8 48 c7 87 40 01 00 00 40 22 2d c8 c3 66 0f 1f 44 00 00 f3 0f 1e fa <0f> b6 47 28 c3 0f 1f 80 00 00 00 00 89 c9 48 8d 04 49 48 c1 e0 04
2026-04-28T20:44:45.474071+02:00 notebook kernel: RSP: 0018:ffffd54649d13af0 EFLAGS: 00010293
2026-04-28T20:44:45.474071+02:00 notebook kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffc82d2660
2026-04-28T20:44:45.474098+02:00 notebook kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
2026-04-28T20:44:45.474099+02:00 notebook kernel: RBP: ffffd54649d13bb0 R08: 0000000000000000 R09: 0000000000000000
2026-04-28T20:44:45.474100+02:00 notebook kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffff8e0a87433500
2026-04-28T20:44:45.474101+02:00 notebook kernel: R13: ffffd54649d13b38 R14: ffff8e0a87433508 R15: 0000000000000000
2026-04-28T20:44:45.474102+02:00 notebook kernel: FS: 000075158ac2de80(0000) GS:ffff8e0e6a080000(0000) knlGS:0000000000000000
2026-04-28T20:44:45.474103+02:00 notebook kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
2026-04-28T20:44:45.474104+02:00 notebook kernel: CR2: 0000000000000028 CR3: 000000017739e005 CR4: 00000000003706f0
2026-04-28T20:44:45.474105+02:00 notebook kernel: note: kwin_wayland[2469] exited with irqs disabled
2026-04-28T20:44:45.482324+02:00 notebook kwin_wayland_wrapper[2469]: kwin_scene_opengl: Invalid framebuffer status: "GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT"
Ouput of swapon
NAME TYPE SIZE USED PRIO
/dev/sda1 partition 7,5G 0B -1
Output of dpkg -l *nvidia* | grep ii
ii libnvidia-cfg1-580:amd64 580.142-0ubuntu3 amd64 NVIDIA binary OpenGL/GLX configuration library
ii libnvidia-common-580:i386 580.142-0ubuntu3 i386 Shared files used by the NVIDIA libraries
ii libnvidia-compute-580:amd64 580.142-0ubuntu3 amd64 NVIDIA libcompute package
ii libnvidia-compute-580:i386 580.142-0ubuntu3 i386 NVIDIA libcompute package
ii libnvidia-decode-580:amd64 580.142-0ubuntu3 amd64 NVIDIA Video Decoding runtime libraries
ii libnvidia-decode-580:i386 580.142-0ubuntu3 i386 NVIDIA Video Decoding runtime libraries
ii libnvidia-egl-wayland1:amd64 1:1.1.21-1 amd64 Wayland EGL External Platform library -- shared library
ii libnvidia-egl-wayland1:i386 1:1.1.21-1 i386 Wayland EGL External Platform library -- shared library
ii libnvidia-encode-580:amd64 580.142-0ubuntu3 amd64 NVENC Video Encoding runtime library
ii libnvidia-encode-580:i386 580.142-0ubuntu3 i386 NVENC Video Encoding runtime library
ii libnvidia-extra-580:amd64 580.142-0ubuntu3 amd64 Extra libraries for the NVIDIA driver
ii libnvidia-fbc1-580:amd64 580.142-0ubuntu3 amd64 NVIDIA OpenGL-based Framebuffer Capture runtime library
ii libnvidia-fbc1-580:i386 580.142-0ubuntu3 i386 NVIDIA OpenGL-based Framebuffer Capture runtime library
ii libnvidia-gl-580:amd64 580.142-0ubuntu3 amd64 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii libnvidia-gl-580:i386 580.142-0ubuntu3 i386 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii linux-firmware-nvidia-graphics 20260319.git217ca6e4-0ubuntu1 all Firmware for Nvidia graphics
ii linux-modules-nvidia-580-7.0.0-14-generic 7.0.0-14.14 amd64 Linux kernel nvidia modules for version 7.0.0-14
ii linux-modules-nvidia-580-generic 7.0.0-14.14 amd64 Extra drivers for nvidia-580 for the generic flavour
ii linux-objects-nvidia-580-7.0.0-14-generic 7.0.0-14.14 amd64 Linux kernel nvidia modules for version 7.0.0-14 (objects)
ii linux-signatures-nvidia-7.0.0-14-generic 7.0.0-14.14 amd64 Linux kernel signatures for nvidia modules for version 7.0.0-14-generic
ii nvidia-compute-utils-580 580.142-0ubuntu3 amd64 NVIDIA compute utilities
ii nvidia-driver-580 580.142-0ubuntu3 amd64 NVIDIA driver metapackage
ii nvidia-firmware-580-580.142 580.142-0ubuntu3 amd64 Firmware files used by the kernel module
ii nvidia-kernel-common-580 580.142-0ubuntu3 amd64 Shared files used with the kernel module
ii nvidia-kernel-source-580 580.142-0ubuntu3 amd64 NVIDIA kernel source package
ii nvidia-prime 0.8.17.2build1 all Tools to enable NVIDIA's Prime
ii nvidia-settings 510.47.03-0ubuntu7 amd64 Tool for configuring the NVIDIA graphics driver
ii nvidia-utils-580 580.142-0ubuntu3 amd64 NVIDIA driver support binaries
ii xserver-xorg-video-nvidia-580 580.142-0ubuntu3 amd64 NVIDIA binary Xorg driver
/var/crash/ is empty
prime-select is on nvidia. I should not that I can switch to intel, but that also disables the HDMI port, so the problem cannot be replicated then.
Adding KWIN_FORCE_SW_CURSOR=1 to /etc/environment does not help.
In the recommendations of best practices to upgrade an Ubuntu distribution (and in a previous similar post), it is recommended to:
Disable all non-Ubuntu (unoficial) deb sources, including disabling PPAs. Uninstall the deb packages that those sources provided. Return your deb packages to as close to stock condition as possible.
I know sources can be disabled in the Software and Updates application, by using add-apt-repository -r, or by adding Enabled: no to the .sources files. But how can I also uninstall the deb packages that were installed from those sources?
I have seen ppa-purge being mentioned, but it did not work properly for me. To give an example for josm that did not seem to do anything:
❯ sudo ppa-purge -s josm.openstreetmap.de ppa:apt/dists
Updating packages lists
PPA to be removed: apt dists
Package revert list generated:
josm/questing
Updating packages lists
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
josm is already the newest version (1.5.svn19555).
Selected version '1.5.svn19555' (josm.openstreetmap.de [all]) for 'josm'
Solving dependencies... Done
0 to upgrade, 0 to newly install, 0 to remove and 28 not to upgrade.
PPA purged successfully
The output of apt policy still includes:
Package files
...
500 https://josm.openstreetmap.de/apt questing/universe amd64 Packages
release n=questing,c=universe,b=amd64
origin josm.openstreetmap.de
and the contents of /etc/apt/sources.list.d/josm.sources remain (i.e., they do not include Enabled: no):
Types: deb
URIs: https://josm.openstreetmap.de/apt
Suites: questing
Components: universe
Architectures: amd64
Signed-By: /etc/apt/keyrings/josm-apt.gpg
I'm from India, currently running Ubuntu 24.04.4 LTS. I am excited to upgrade to the newly released 26.04 LTS. However, even today's morning (Apr 25), my software updater couldn't find a newer version to upgrade to. Articles like (https://linuxconfig.org/upgrade-ubuntu-24-04-to-26-04) and (https://linuxize.com/post/how-to-upgrade-to-ubuntu-26-04/) suggest a manual upgrade via the terminal, first upgrading to a non-LTS version (25.10). I am not willing to wait till 26.04.1 LTS release.
How do I upgrade? Please help!
Not sure if this or a mathematica-focused forum is the right place for this, but I suspect my issue is something with my ubuntu setup, so I am hoping someone here will have some ideas.
I am trying to install Mathematica from the official installer Wolfram_14.3.0_LIN_Bndl.sh, but it's being strangely annoying.
When I try running it, with any of ./Wolfram_14.3.0_LIN_Bndl.sh, sudo ./Wolfram_14.3.0_LIN_Bndl.sh, bash Wolfram_14.3.0_LIN_Bndl.sh or sudo bash Wolfram_14.3.0_LIN_Bndl.sh , I receive output of the form
Wolfram Mathematica 14.3.0 for LINUX Installer Archive
Verifying archive integrity.
Error in MD5 checksums: 7b75ed1e8117f0a81eea3b41358b9e28 is different from b78ec7c79750834b95d15731c9903fa4
However, the wrong checksum is computed each time, e.g. the 7b75ed1e8117f0a81eea3b41358b9e28 will become f393c094e26d8506c0cca1bc8addb413 or something else each time I run it.
I downloaded the script from wolfram's website, so I know it is the correct/official one. I do not have any good guesses for why the wrong checksum is being computed or why it is different every time. I tried bypassing this check by manually editing the relevant function in the shell script, but then the install fails at the next step with output
Wolfram Mathematica 14.3.0 for LINUX Installer Archive
Verifying archive integrity.
Extracting installer. ........Extraction failed. No space left on .625963
.Removing temporary files.
I am also confused by this. It seems some tar command is failing under the hood, but I do not know why. It certainly is not because of a lack of space; I have hundreds of gigabytes free, and while Mathematica is pretty big, it's not that big.
At this point, I am very confused about what is causing these issues, so I thought I would turn to the internet for help. Does anyone here have any suggestions?
Some extra considerations
I know the installation script itself is fine. I pulled out an old laptop and tried running it on there, and it worked with no issue. If it matters, my current computer is running Ubuntu 25.10, but the old one is running 25.04.
The md5sum function on my (current) laptop also appears to being working correctly. I tested this via echo -n "The quick brown fox jumps over the lazy dog" | md5sum and comparing the output to this example given on Wikipedia.
If it matters, my computer has two physical SSDs in it. One is basically a huge storage partition and is where the install script is downloaded. The other has my Linux partition (as well as a separate Windows partition for emergencies). I doubt this matters for anything, but figured I'd mention it just in case.
Let me know if I can provide any more information about my setup/computer, if I should provide any snippets of the installation shell script, or if I can share anything else that might be helpful. Also let me know if there is a better place to ask for help with this. Thanks.
I am installing vokoscreen 3.0.8:
https://snapcraft.io/vokoscreen-ng
When I try to run it, it tells me:
wiktor@wiktor:~$ vokoscreen-ng
This application failed to start because it could not find or load the Qt platform plugin "wayland-egl"
in "".
Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.
Reinstalling the application may fix this problem.
Aborted (core dumped)
How to install the missing wayland-egl?
I am running Ubuntu 21.04 on Wayland.
I installed Ubuntu 18.04 and then while installing Virtualbox i get the 'i386' error message after I did:
$ sudo apt-get update
Get:1 http://nl.archive.ubuntu.com/ubuntu bionic InRelease [242 kB]
Hit:2 http://security.ubuntu.com/ubuntu bionic-security InRelease
Hit:3 http://ppa.launchpad.net/danielrichter2007/grub-customizer/ubuntu bionic InRelease
Hit:4 http://nl.archive.ubuntu.com/ubuntu bionic-updates InRelease
Hit:5 http://nl.archive.ubuntu.com/ubuntu bionic-backports InRelease
Get:6 http://download.virtualbox.org/virtualbox/debian bionic InRelease [4429 B]
Get:7 http://download.virtualbox.org/virtualbox/debian bionic/contrib amd64 Packages [1426 B]
Fetched 248 kB in 1s (209 kB/s)
Reading package lists... Done
N: Skipping acquire of configured file 'contrib/binary-i386/Packages' as repository 'http://download.virtualbox.org/virtualbox/debian bionic InRelease' doesn't support architecture 'i386'
I found several answers on Askubuntu for the 'i386' message but I don't know how to apply this to my situation
When I rebooted my Ubuntu 14.04 it gave the following error. I tried ls and it still threw the error below. Could some one give me an exact answer on how to solve this issue? I need this help a bit urgently.
What is the best method I can use which will help me to at least get data from my /home folder and then I can format this disk if it is really failing?
Here is the error
grub rescue> ls (hd0, msdos1)
(hd0, msdos1) : Filesystem is unknown.
error: failure reading sector 0x802 from 'hd0'.
grub rescue>
Please help me correctly to solve this issue. I just need data from my /home folder once that is done I can format the disk and reinstall.
I recently had to rebuild my pc and decided to go for ubuntu 14.04. I think the mistake I made was I started from a 12.04 install disk instead of the 12.10 disk I'd used previously and when given the option set my primary connection as ethernet (because the wireless option didn't work).
After upgrading to 14.04 etc, I managed to get the wireless working, or more using steps like ifconfig -a and the likes I managed to prove that the wireless card etc. is all installed and working.
However every time I boot without a hard wired connection plugged in I get the message "waiting for network configuration".
I can then once it's booted without a network get my wirless working using
sudo ifconfig wlan0 up iwlist wlan0 scan
This seems to kick the wireless module into life and it appears in the GUI and I can then select a network, however all the options like edit network and disconnect etc are all greyed out.
What I would like of course is if the WLAN0 was just set as my primary default network so I've been looking for a solution to this and it would seem that I need to adjust the old /etc/network/interfaces file but when I try to do so using the
sudo vi /etc/network/interfaces
command I, well I simply have no idea what I'm doing. Other than that typing :q! gets me out of there before I do to much damage!
As far as I can tell (by navigating to the file in the GUI) the output of my /etc/network/interfaces is as follows: (obviously not including the " in each line that's just to break the heading rule of the #)
"# This file describes the network interfaces available on your system "# and how to activate them. For more information, see interfaces(5).
"# The loopback network interface auto lo iface lo inet loopback
"# The primary network interface auto eth0 iface eth0 inet dhcp
If this is the case then this clearly doesn't contain what it should do but I don't how to fix it. Nor do I even know if I'm on the right track.
Any help would be appreciated thanks :)
I have a netbook that I want to install Ubuntu onto. I do have a good Mac computer that I can make a bootable USB drive from, but I'm confused on how to go about making it.
I have a working MacBook Pro and a crashed Windows 7 PC. I was running Ubuntu on my PC, but after a recurrent issue now I can't boot either OS. I would like to install only Ubuntu on my PC and will make Windows 7 history for good, but I am a bit puzzled by the instructions for creating a bootable USB options on the website.
If I create a bootable USB on my Mac following the instructions for OS X, would it boot in a PC?
If you select "USB" and "Mac" on this download page, it gives a series of command line instructions to make a USB key which the MacBook will boot into Ubuntu from.
I've followed them to the letter two or three times on different USB keys, and it doesn't work. There's a very great deal of technical discussion about EFI etc. but this set of instructions seems to suggest it should just work, but it doesn't.
Help? I'm increasingly unhappy with the more locked-down approach Apple is taking, and I'd quite like to start using Linux with a view to transitioning over to using it as my main operating system, but booting from the CD takes forever, runs slowly and I'm really hoping to get it moving off USB.
Can anybody help me?