[Pkg-zfsonlinux-devel] Bug#921305: zfs-dkms: fails to upgrade from stretch

[Andrew G. Dunn]

Similarly fails on fresh buster install from Debian Alpha5 install media.

On Mon, 04 Feb 2019 03:47:36 +0100 Andreas Beckmann <anbe at debian.org> wrote:
> Package: zfs-dkms
> Version: 0.7.12-2
> Severity: serious
> User: debian-qa at lists.debian.org
> Usertags: piuparts
> 
> Hi,
> 
> during a test with piuparts I noticed your package fails to upgrade from
> 'stretch'.
> It installed fine in 'stretch', then the upgrade to 'buster' fails.
> 
> The problem is the order chosen by apt to process the packages.
> 
> * the new spl-dkms gets configured and builds modules for the stretch kernel
> * the new zfs-dkms gets unpacked
> * the buster kernel headers get unpacked
> * the new zfs-dkms gets configured and attempts to build a module for the
>   buster kernel
> * this fails due to a missing spl-dkms build for the buster kernel
> * the buster kernel headers get configured
> 
> From the attached log (scroll to the bottom...):
> 
> [...]
>  Setting up spl-dkms (0.7.12-1) ...
>   Loading new spl-0.7.12 DKMS files...
>   It is likely that 4.13.2 belongs to a chroot's host
>   Building for 4.9.0-8-amd64
>   Building initial module for 4.9.0-8-amd64
>   Done.
> [...]
>   DKMS: install completed.
> [...]
>   Preparing to unpack .../zfs-dkms_0.7.12-2_all.deb ...
>   
>   -------- Uninstall Beginning --------
>   Module:  zfs
>   Version: 0.6.5.9
>   Kernel:  4.9.0-8-amd64 (x86_64)
>   -------------------------------------
>   
>   Status: Before uninstall, this module version was ACTIVE on this kernel.
> [...]
>   DKMS: uninstall completed.
>   
>   ------------------------------
>   Deleting module version: 0.6.5.9
>   completely from the DKMS tree.
>   ------------------------------
>   Done.
>   Unpacking zfs-dkms (0.7.12-2) over (0.6.5.9-5) ...
> [...]
>   Selecting previously unselected package linux-compiler-gcc-8-x86.
>   Preparing to unpack .../4-linux-compiler-gcc-8-x86_4.19.12-1_amd64.deb ...
>   Unpacking linux-compiler-gcc-8-x86 (4.19.12-1) ...
>   Selecting previously unselected package linux-headers-4.19.0-1-common.
>   Preparing to unpack .../5-linux-headers-4.19.0-1-common_4.19.12-1_all.deb
...
>   Unpacking linux-headers-4.19.0-1-common (4.19.12-1) ...
>   Selecting previously unselected package linux-kbuild-4.19.