Package: grub-efi-amd64
Version: 2.06-13+deb12u1
Severity: critical
Tags: upstream patch
Justification: breaks the whole system
My system suddenly refused to start up grub. An error message flashed by, but too quickly for me to be able to see. Then I got the grub emergency prompt.
Upon booting from a Debian live image to attempt to fix this, after chrooting into an appropriately-configured filesystem from the target (with bind-mount /proc, /sys, /dev, /boot/efi, etc), grub-install failed with:
error: compression algorithm inherit not supported
I'll note that "inherit" is not really a compression algorithm for ZFS. (root, and also boot, are part of ZFS on this system.)
Upon researching this, I see that
https://github.com/openzfs/zfs/issues/15261 discusses the problem.
https://github.com/openzfs/zfs/issues/13873 does as well.
https://github.com/openzfs/zfs/issues/13873#issuecomment-1905182760 suggests that it is the ZFS feature extensible_dataset that is responsible for this. That feature can get auto-enabled by other features at runtime.
Both of these bugs indicate that grub 2.12 contains patches to fix the issue. Indeed, the four patches listed at
https://git.savannah.gnu.org/cgit/grub.git/log/grub-core/fs/zfs/zfs.c pertaining
to ZFS are thought to fix it.
I have built a bookworm-backports version of grub 2.12 and it does indeed solve the problem.
I think this issue justifies backporting those ZFS patches into the version in bookworm for stable-proposed-updates.
Thanks!
- John
-- System Information:
Debian Release: 12.5
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 6.1.0-18-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages grub-efi-amd64 depends on:
ii debconf [debconf-2.0] 1.5.82
ii grub-common 2.06-13+deb12u1
ii grub-efi-amd64-bin 2.06-13+deb12u1
ii grub2-common 2.06-13+deb12u1
ii ucf 3.0043+nmu1
grub-efi-amd64 recommends no packages.
grub-efi-amd64 suggests no packages.
-- debconf information excluded
--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)