[pkg-cryptsetup-devel] Bug#905574: linux-image-4.17.0-0.bpo.1-amd64: cryptsetup missing in intitramfs for kernel 4.17

[Ian Campbell]

On Mon, 2018-08-06 at 21:15 +0800, Ben Hutchings wrote:
> > Inspecting the initramfs shows that the cryptsetup related parts are
> > missing for 4.17, but still in the 4.16 kernel.
> > 
> > I was able to mitigate the issue by use the cryptsetup packages from
> > buster.
> 
> This is strange.  Kernel packages do not determine what goes into the
> initramfs.

Possibly the cryptsetup package changed (and become broken). Then the
4.17 initramfs was (re)built (due to the install/upgrade of that
kernel) while the 4.16 initramfs wasn't rebuilt.

I expected that there were be triggers in place which should have
caused the 4.16 initramfs (in fact, all initramfses) to be updated if a
relevant package (e.g. cryptsetup) was changed, but perhaps that was
more in hope than expectation and it's only an initramfs-tools update
which would trigger that?

Ian.