Test Day: GRUB Out of Memory Fix Verification

Project Discussion
1

Greetings testers!

Please join us for upcoming Test Day [1] and help us improve Fedora’s quality and stability.
Your participation helps us find and fix bugs before the next release, ensuring a smoother experience for all users.

This time we’ll focus on testing GRUB update fixing Out of Memory error on specific hardware configurations:
:dvd: You’ll just boot provided live test image and report success / failure along with your HW configuration

Test period: 2025-12-15 to 2025-12-19
Test instructions: https://fedoraproject.org/wiki/Test_Day:2025-12-15_GRUB_out_of_memory_verification

Thank you for your contributions!

Jaroslav Groman
Fedora Quality

[1] https://fedoraproject.org/wiki/QA/Test_Days

2

Team,

We have two regression [1,2] with the proposed (and merged) fix [3] so unfortunately this is not yet over: During the test day [TestDay], most testers booted fine the iso so we merged [3]. During the previous weekend (10-11 Jan 2026), people found boot issues [1] so [3] was untagged [4]. We are suspecting that this is something
related to the filesystem (btrfs?) and this is why during the test day using
a Live OS did not catch it. Test Day was indeed useful, fix worked but not for all systems so clearly the fix needs to be revisited.

I ask you the following: From a stable system/grub, can you (RE)INSTALL these instructions:

$ sudo dnf install -y koji
$ mkdir tmp & cd tmp
$ koji download-task 140906146 # aka [5], this is just a scratch build just for x86_64, disable SB
$ sudo dnf install *.rpm
$ sudo reboot

The fix [5] contains [3] plus some instrumentation enabling debugging (‘debug=all,-lexer,-scripting’). In case of FAILURE (you boot but ended up in the grub prompt instead of the grub menu) please attach a video recording all the boot process and also in the comment indicate your block/partition/fs scheme with ‘lsblk -f’. In case of SUCCESS, just provide the output of the latter cmd.

I am also preparing another test-day which will basically do the above steps but I will wait hoping that we will get enough results here first.

[1] 2427945 – grub2-efi-x64 2.12-50.fc44 boots to GRUB command line (grub>) instead of menu (UEFI, ESP vfat, btrfs root, no separate /boot)
[2] 2422881 – Fedora will not not start from USB
[3] Making sure you're not a bot!
[4] Making sure you're not a bot!
[5] Making sure you're not a bot!
[TestDay] Test Day:2025-12-15 GRUB out of memory verification - Fedora Project Wiki

3

Hi Leo,

I was not able to reproduce the bug on my test system with a fresh Rawhide install.

Here’s my lsblk -f output:

$ lsblk -f
NAME   FSTYPE  FSVER            LABEL               UUID                                 FSAVAIL FSUSE% MOUNTPOINTS
sda
├─sda1 vfat    FAT32                                46ED-AD6E                               581M     3% /boot/efi
├─sda2 ext4    1.0                                  566cac0c-0580-4c8a-9f32-573f4dc5f774    1.4G    18% /boot
└─sda3 btrfs                    fedora              e9b4d491-b3f6-4cee-a8d4-804cf5095996  457.4G     1% /home
/
sdb    iso9660 Joliet Extension Fedora-WS-Live-rawh 2026-01-14-06-17-10-00
├─sdb1 iso9660 Joliet Extension Fedora-WS-Live-rawh 2026-01-14-06-17-10-00                     0   100% /run/media/jerry/Fedora-WS-Live-rawh
└─sdb2 vfat    FAT16            BOOT                3849-7A14
zram0  swap    1                zram0               b90e5b01-89f9-4ed5-867f-eba9f6137d54                [SWAP]