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Bug#1132794: dracut 110-8 breaks autopkgtest EFI boot images

Cross-posted to 2 groups.

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On Tue, 2026-04-07 at 11:44 +0200, Benjamin Drung wrote:
> On Tue, 2026-04-07 at 09:38 +0200, Christian Kastner wrote:
> > On 2026-04-06 10:50, Christian Kastner wrote:
> > > I can now confirm that it was the dracut 110-8 upload that triggered
> > > this new boot failure. Specifically, it was commit bebb2681, which
> > > added:
> > > 
> > >     fix-dracut-enable-hostonly_cmdline-in-hostonly-mode-again.patch
> > > 
> > > Disabling this patch fixes the issue for me again [...]
> > 
> > So I compared the output of a trixie image build (which continues to
> > successfully EFI boot) and an unstable image build (which exhibits the
> > problem).
> > 
> > There is one key difference in the image build log when the kernel gets
> > installed. Here is a snippet from the unstable build:
> > 
> > Setting up linux-image-6.19.11+deb14-amd64 (6.19.11-1) ...
> > I: /vmlinuz.old is now a symlink to boot/vmlinuz-6.19.11+deb14-amd64
> > I: /initrd.img.old is now a symlink to boot/initrd.img-6.19.11+deb14-amd64
> > I: /vmlinuz is now a symlink to boot/vmlinuz-6.19.11+deb14-amd64
> > I: /initrd.img is now a symlink to boot/initrd.img-6.19.11+deb14-amd64
> > /etc/kernel/postinst.d/dracut:
> > dracut[W]: Turning off host-only mode: /dev is not mounted!
> > ...
> > 
> > The trixie build lacks this dracut warning.
> > 
> > So it would appear that in image builds, this problem stems from
> > host-only mode previously being on, and now being turned off.
> 
> Those two reports gave me a clue. I assume the opposite. You want
> hostonly disabled. The patch fix-dracut-enable-hostonly_cmdline-in-
> hostonly-mode-again.patch enables hostonly-cmdline by default again, but
> this:
> 
> dracut[W]: Turning off host-only mode: /dev is not mounted!
> 
> does not turn off hostonly-cmdline which causes the host config to leak
> into the initrd. I'll prepare a fix for dracut.

Here comes the fix: https://github.com/dracut-ng/dracut-ng/pull/2351

Can you test that this fix solves your issue?

-- 
Benjamin Drung
Debian & Ubuntu Developer

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Bug#1132794: dracut 110-8 breaks autopkgtest EFI boot images Benjamin Drung <bdrung@debian.org> - 2026-04-07 11:50 +0200
  Bug#1132794: dracut 110-8 breaks autopkgtest EFI boot images Benjamin Drung <bdrung@debian.org> - 2026-04-07 12:10 +0200
    Bug#1132794: dracut 110-8 breaks autopkgtest EFI boot images Benjamin Drung <bdrung@debian.org> - 2026-04-07 13:20 +0200
      Bug#1132794: dracut 110-8 breaks autopkgtest EFI boot images Benjamin Drung <bdrung@debian.org> - 2026-04-07 13:30 +0200
        Bug#1132794: dracut 110-8 breaks autopkgtest EFI boot images Benjamin Drung <bdrung@debian.org> - 2026-04-08 11:50 +0200
          Bug#1132794: dracut 110-8 breaks autopkgtest EFI boot images Chris Hofstaedtler <zeha@debian.org> - 2026-04-08 12:10 +0200
            Bug#1132794: dracut 110-8 breaks autopkgtest EFI boot images Benjamin Drung <bdrung@debian.org> - 2026-04-08 12:50 +0200
              Bug#1132794: dracut 110-8 breaks autopkgtest EFI boot images Benjamin Drung <bdrung@debian.org> - 2026-04-11 00:10 +0200
                Bug#1132794: dracut 110-8 breaks autopkgtest EFI boot images Michael Prokop <mika@debian.org> - 2026-04-13 07:30 +0200
                Bug#1132794: dracut 110-8 breaks autopkgtest EFI boot images Benjamin Drung <bdrung@debian.org> - 2026-04-13 23:00 +0200
                Bug#1132794: dracut 110-8 breaks autopkgtest EFI boot images Johannes Schauer Marin Rodrigues <josch@debian.org> - 2026-05-06 12:30 +0200
                Bug#1132794: dracut 110-8 breaks autopkgtest EFI boot images Benjamin Drung <bdrung@debian.org> - 2026-05-06 14:20 +0200
                Bug#1132794: dracut 110-8 breaks autopkgtest EFI boot images Johannes Schauer Marin Rodrigues <josch@debian.org> - 2026-05-06 16:10 +0200

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