Control: retitle -1 debconf: Fails to populate template cache during package removal Control: reassign -1 src:debconf Control: affects -1 linux-base
On Wed, 2018-09-05 at 03:00 +0200, Lars Kruse wrote: > Package: linux-base > Version: 4.5 > Severity: normal > > Dear Maintainer, > > I recently encountered the following situation while trying to remove the > package of a currently running kernel: > > root@router-foo:~# apt purge linux-image-4.9.0-6-amd64 > Reading package lists... Done > Building dependency tree > Reading state information... Done > The following packages will be REMOVED: > linux-image-4.9.0-6-amd64* > 0 upgraded, 0 newly installed, 1 to remove and 24 not upgraded. > After this operation, 193 MB disk space will be freed. > Do you want to continue? [Y/n] > (Reading database ... 50646 files and directories currently installed.) > Removing linux-image-4.9.0-6-amd64 (4.9.88-1+deb9u1) ... > Failed to substitute package name in title: 10 at /usr/bin/linux-check-removal > line 102, <STDIN> line 1. dpkg: error processing package > linux-image-4.9.0-6-amd64 (--remove): subprocess installed pre-removal script > returned error exit status 255 Errors were encountered while processing: > linux-image-4.9.0-6-amd64 > E: Sub-process /usr/bin/dpkg returned an error code (1) [...] > The only specific detail of the problematic environment is probably the > fact, that /var/cache is stored on a tmpfs and thus is regularly > discarded on every reboot. [...] This is an unusual configuration, but apparently valid (according to the FHS). Currently debconf only populates the cache during package installation and in dpkg-reconfigure. This means that asking any questions during package removal has the same problem. I verified that the same failure occurs when attempting to remove an old kernel package that has a similar prompt using its own template. I think debconf should populate the cache from package template files on-demand, using the first part of the template name as the package name. Ben. -- Ben Hutchings I'm always amazed by the number of people who take up solipsism because they heard someone else explain it. - E*Borg on alt.fan.pratchett
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