Updates already added for a new iteration:
- Fixed the version comparisons in the postinst (worked, but was wrong and
could cause issues in later cross upgrades)
- Fixed the missing negation in the check if the target is no-exec (prevented
saving of modules)
Info:
- the F/B postrm does purge service on purge (ok)
- the F/B postrm does mask the service on remove (ok - no conflict as it will
only save the state)
Current remaning issue is the stopping on remove.
That is due to prerm - in Bionic by dh_*_start/-_enable handling by
dh_systemd_start/11.1.6ubuntu2 and Focal by dh_installsystemd/12.10ubuntu1.
They stop the mount unit in prerm like:
# Automatically added by dh_systemd_start/11.1.6ubuntu2
if [ -d /run/systemd/system ] && [ "$1" = remove ]; then
deb-systemd-invoke stop 'run-qemu.mount' >/dev/null || true
fi
# End automatically added section
The old dh tools did neither detect a mount unit as such and handled it
differently to other services, nor did it provide a means to no-stop-on-remove.
I'm afraid I need to convert the generated snippets to explicit sections in the
postinst files.
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https://bugs.launchpad.net/bugs/1913421
Title:
Load of pre-upgrade qemu modules needs to avoid noexec
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