[Pkg-zfsonlinux-devel] Bug#1110397: Spoke too soon

[Wessel Dankers]

Hi Turbo,

Thank you so much for looking into this. Apologies for no replying sooner,
apparently I do not get e-mail from the debian bug tracker (no, it's not in
my spambox either). Perhaps best to Cc me explicitly if you need a quick
reaction.

On 2025‒12‒04 16:31:54+0000, Turbo Fredriksson wrote:
> After spending almost a day setting up Trixie to have a ZFS root and
> then almost two days trying to reproduce the problem, I have failed to
> do so!

Not to be outdone in terms of expended effort, I've put up a
more-or-less self-contained installation script at
https://www.fruit.je/y/zfs-initramfs-1110397/install which should have
everything you need to reproduce the issue. I've also captured the
output (see the links below) so that hopefully you don't have to. ;)

But even if you don't actually run it, you can at least see the exact
steps that lead to the issue.

> Wessel, I need you to add the `zfsdebug=yes` on the kernel command line
> and try to see where this is happening. Is it indeed in the initrd or once the
> zfs mount happens??

You can see the output of it at:
https://www.fruit.je/y/zfs-initramfs-1110397/reboot-log

> If you could give me the output from the following commands, I’d also appreciate
> it. I have no idea what I’m looking at, but at least then I can start to compare
> it with what I have..
>
> * zpool get bootfs <pool>
> * zfs list -o name,canmount,encryption,mounted,mountpoint

You'll find this output at the bottom of
https://www.fruit.je/y/zfs-initramfs-1110397/install-log

Please note that the bootfs property is not used by grub.

> The important thing I need to know, is it *really* the initrd that is at fault
> here??! I’m not so sure it is..

I'm pretty sure it is! This patch:
https://www.fruit.je/y/zfs-initramfs-1110397/patch resolves the issue
completely (it's basically a more explicit rendering of what I wrote in
the original report).

Kind regards,

-- 
Wessel Dankers <wsl-debbugs-zfs-initramfs at fruit.je>
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