464869 2023-01-26 20:07:30 +0000 Installing updates corrupts Grub 2 ( unbootable system) 2025-09-20 09:36:13 +0000 1 1 7 KDE Neon neon Packages User Edition unspecified Neon Linux RESOLVED WAITINGFORINFO NOR grave --- 1 knotrocket12 neon-bugs-null emir_sari jr lassi.vaatamoinen neon-bugs-null sitter 0 oldest_to_newest 2202224 0 155678 knotrocket12 2023-01-26 20:07:30 +0000 Created attachment 155678 The screen that appears after rebooting SUMMARY Updating the system with pkcon causes the system to be unbootable. STEPS TO REPRODUCE 1. Update KDE Neon with pkcon either graphically or from the command line 2. reboot 3. Wait for the update to complete OBSERVED RESULT The offline update seems to complete without errors, but after the automatic reboot I get stuck on the grub screen and choosing any of the options or waiting for the selection to timeout causes the system to freeze. EXPECTED RESULT The update should finish successfully, and if it doesn't it should be reverted. SOFTWARE/OS VERSIONS Host: - Fedora 37 - VirtualBox 7.0.4 Guest (before updating): - OS: KDE Neon testing - KDE Plasma Version: 5.26.90 - KDE Frameworks Version: 5.103.0 - Qt Version: 5.15.8 ADDITIONAL INFORMATION Running sudo apt dist-upgrade doesn't cause any issues. 2206063 1 forestix 2023-02-08 02:26:27 +0000 I reproduced this today in a libvirt/KVM virtual machine, using neon-testing-20230207-0250.iso as the install medium. I used Discover to start the update sequence. After rebooting, I was presented with a completely black screen for a few minutes. The black screen was eventually replaced with a (Plymouth?) software update screen with a spinning gear. When the updates finished installing, it rebooted to the grub menu, as seen in the screen shot. Selecting either Neon or Advanced Options from the grub menu caused a reboot, and a return to the grub menu. Selecting memtest from the grub menu caused a system freeze. 2222311 2 lassi.vaatamoinen 2023-04-12 14:27:31 +0000 This issue reproduces on nearly every time updates are installed. Especially when Discover reports "System upgrades" to be available, and those get installed. Afterwards, the boot sequence ends up into Grub menu and selecting any boot option there causes a freeze. Issue is recoverable, by using Boot Repair disc, but you can hardly call this a usable OS, while having such issues. SYSTEM INFORMATION Operating System: KDE neon 5.27 KDE Plasma Version: 5.27.4 KDE Frameworks Version: 5.104.0 Qt Version: 5.15.8 Kernel Version: 5.19.0-38-generic (64-bit) Graphics Platform: X11 Processors: 4 × Intel® Core™ i7-7820HQ CPU @ 2.90GHz Memory: 22,7 GiB of RAM Graphics Processor: SVGA3D; build: RELEASE; LLVM; Manufacturer: innotek GmbH Product Name: VirtualBox System Version: 1.2 2225385 3 lassi.vaatamoinen 2023-04-25 14:46:46 +0000 (In reply to Lassi Väätämöinen from comment #2) > This issue reproduces on nearly every time updates are installed. Especially > when Discover reports "System upgrades" to be available, and those get > installed. Now upgraded kernel to 5.19.0-41. The issue happens systematically, when there is a "system upgrade" that ends up into post-boot KDE Neon splash screen with "Installing updates XX%" During this upgrade the Grub gets corrupt. Every time. Not sure if these issues with Breeze Grub theme are related: https://www.reddit.com/r/kdeneon/comments/z0vf4h/kde_neon_update_replaced_grub_with_broken_version/ https://www.reddit.com/r/kde/comments/8nkzvs/neon_seems_hardwired_to_look_for_breeze_grub/ For what it's worth, I don't even seem to have the Breeze theme on my system (after running Boot Repair Disc, which is a must with KDE Neon...) $ cat /etc/default/grub.d/99_breeze-grub.cfg GRUB_THEME=/boot/grub/themes/breeze/theme.txt $ sudo ls /boot/grub/themes/breeze/theme.txt ls: cannot access '/boot/grub/themes/breeze/theme.txt': No such file or directory Operating System: KDE neon 5.27 KDE Plasma Version: 5.27.4 KDE Frameworks Version: 5.105.0 Qt Version: 5.15.9 Kernel Version: 5.19.0-41-generic (64-bit) Graphics Platform: X11 Processors: 4 × Intel® Core™ i7-7820HQ CPU @ 2.90GHz Memory: 22,7 GiB of RAM Graphics Processor: SVGA3D; build: RELEASE; LLVM; Manufacturer: innotek GmbH Product Name: VirtualBox System Version: 1.2 2233960 4 lassi.vaatamoinen 2023-05-31 10:03:25 +0000 This is a very systematic issue and easily reproducible on Virtualbox. I had it reproduced also on a openSUSE Linux host, KDE Neon as guest. On that VM I had the 'grub-theme-breeze' package installed, but I did not check it's install status, if /boot/grub/themes/breeze/theme.txt file was installed. I'll be anyways removing 'grub-theme-breeze' in the future. But also, it is quite hard to believe that native installations would be trouble-free regarding this issue. (Or not too many active users for KDE Neon..?) 2233961 5 lassi.vaatamoinen 2023-05-31 10:08:32 +0000 (In reply to Lassi Väätämöinen from comment #3) > Not sure if these issues with Breeze Grub theme are related: > https://www.reddit.com/r/kdeneon/comments/z0vf4h/ > kde_neon_update_replaced_grub_with_broken_version/ > https://www.reddit.com/r/kde/comments/8nkzvs/ > neon_seems_hardwired_to_look_for_breeze_grub/ > > For what it's worth, I don't even seem to have the Breeze theme on my system > (after running Boot Repair Disc, which is a must with KDE Neon...) > > $ cat /etc/default/grub.d/99_breeze-grub.cfg > GRUB_THEME=/boot/grub/themes/breeze/theme.txt > > $ sudo ls /boot/grub/themes/breeze/theme.txt > ls: cannot access '/boot/grub/themes/breeze/theme.txt': No such file or > directory > In this case 'dpkg -l |grep grub-theme-breeze' showed that the package was installed, but the theme file was missing. Now, every time an upgrade happens, Grub wants to get displayed. On a normal boot it does not show. If the theme is then broken like this, not booting after upgrade might be explained. But the questions: a) why is the theme file missing? b) why does grub want to show up after upgrade, but not on a normal boot? 2234162 6 emir_sari 2023-06-01 10:58:08 +0000 I had the same very issue, again, yesterday. This should be blocker priority. 2237657 7 knotrocket12 2023-06-22 00:20:54 +0000 This happened to me again, but this time when first reboot after dualbooting on real legacy BIOS system. That makes me think this is a problem with GRUB on KDE Neon, and not pkcon one. I haven't tested on a UEFI system yet. 2237813 8 lassi.vaatamoinen 2023-06-22 15:45:49 +0000 (In reply to Samuel Q from comment #7) > first reboot after dualbooting > on real legacy BIOS system. That makes me think this is a problem with GRUB > on KDE Neon, and not pkcon one. I haven't tested on a UEFI system yet. Did you run an upgrade before rebooting? I have not had Grub corruption after removing the 'grub-theme-breeze' package. But I still see some "Guru mediation" errors when upgrades are installed and the VM is being rebooted. 2237842 9 knotrocket12 2023-06-22 18:35:23 +0000 (In reply to Lassi Väätämöinen from comment #8) > Did you run an upgrade before rebooting? No, I booted the Neon unstable ISO through Ventoy and shrunk an partition to install it. Grub froze on the first boot after that. 2455992 10 carlosd.kde 2025-09-20 09:36:13 +0000 Thank you for your bug report! However this bug report was created/provided previous to 01/01/2023 and also has not received any updates since before 01/01/2025. Unfortunately KDE neon no longer provides updates for anything older than noble 24.04 based edition's. Please upgrade to KDE neon noble and if you can reproduce the issue after upgrading to an active version, feel free to re-open this bug report. 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