On Tue, 19 Jul 2022 21:29:06 +0200 Michael Biebl <bi...@debian.org> wrote:
I recently switched from initramfs-tools to tiny-initramfs to generate my initramfs. update-tirfs, contrary to the policy, does not run the hooks in /etc/initramfs/post-update.d. However, at least when a kernel is being installed, updated or removed these hooks are allowed to skip doing any work anyway, according to section 8.5 of the Debian kernel handbook.Am 12.07.22 um 18:16 schrieb Michael Biebl: > Control: tags -1 + moreinfo> > Am 08.07.22 um 11:14 schrieb Norbert Lange:>> Package: systemd-boot >> Version: 251.2-7 >> Severity: normal >> X-Debbugs-Cc: nolang...@gmail.com >> >> Dear Maintainer, >> >> The kernel hook in /etc/kernel/{post,pre}inst.d should >> be named correctly, to quote the kernel-handbook [1]: >> >>> hook scripts for boot loaders must be named using >> the prefix zz- and no other packages may use this prefix >> >> so zz-systemd-boot whould be correct.> > This looks super ugly :-/> At the very least they should have picked numerical prefixes...> > That said, why does the kernel hook need to run late/last? I.e., does > this actually cause any real issues? If so, can you elaborate. > I looked into this a bit more and it is still not obvious/clear to me, why the kernel hook for systemd needs to use the zz prefix (i.e. run late/last). The systemd kernel hook copies the vmlinux-* binary to /boot/efi, but this file is available once the linux-image-* package has been unpacked.That said, I could understand if the initramfs hook needs to run last, i.e. /etc/initramfs/post-update.d/systemd-boot. As this hook will copy the initrd to /boot/efi and initramfs hooks *do* modify the initrd image. The kernel handbook doesn't mention anything in that regard though, so it seems to be incomplete/wrong for the purposes of systemd-boot?
This means that only step 3, running the hooks in /etc/kernel/post{inst,rm}.d are required to do anything.
The issue is that tiny-initramfs sorts after systemd-boot, so the initrd is only generated after systemd-boot has tried to copy it already, leading to a missing initrd on the first try.
I've solved the issue locally by moving systemd-boot's /etc/kernel/post{inst,rm}.d hooks to the name prescribed by policy.
I will also file a corresponding bug (with patch) against tiny-initramfs to fix the running of the hooks in /etc/initramfs/post-update.d.
I'm reluctant to blindly change anything without understanding why. So would welcome further input from someone who is familiar with that topic. Regards, Michael
Regards, -- Victor Westerhuis <vic...@westerhu.is>
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