Bug#871308: upgrade-reports: update to stretch, old-dkms not remove automatically

Package: upgrade-reports
Severity: normal

Dear Maintainer,

I wanted to upgrade my system to stretch and had the problem of not enough
space in /boot, old files with the ending initrd.img-*.old-dkms were lingering
arround (see below) and have not been automatically removed by the upgrade or
upgrades before.

It would be nice, if these files would be automatically removed when the old
kernels are removed.

Thanks for the efford!
Clara



ls /boot
config-4.7.0-0.bpo.1-amd64                initrd.img-4.2.0-0.bpo.1-amd64.old-
dkms  lost+found
config-4.9.0-0.bpo.3-amd64                initrd.img-4.3.0-0.bpo.1-amd64.old-
dkms  System.map-4.7.0-0.bpo.1-amd64
config-4.9.0-3-amd64                      initrd.img-4.7.0-0.bpo.1-amd64
System.map-4.9.0-0.bpo.3-amd64
grub                                      initrd.img-4.7.0-0.bpo.1-amd64.old-
dkms  System.map-4.9.0-3-amd64
initrd.img-3.16.0-0.bpo.4-amd64.old-dkms  initrd.img-4.9.0-0.bpo.3-amd64
vmlinuz-4.7.0-0.bpo.1-amd64
initrd.img-3.16.0-4-amd64.old-dkms        initrd.img-4.9.0-0.bpo.3-amd64.old-
dkms  vmlinuz-4.9.0-0.bpo.3-amd64
initrd.img-3.2.0-4-amd64.old-dkms         initrd.img-4.9.0-3-amd64
vmlinuz-4.9.0-3-amd64




-- System Information:
Debian Release: 9.1
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.7.0-0.bpo.1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)