This appears to still be unresolved. What are the next steps? Do we
still want to add a Pre-Depends? How will d-i and image builds be
verified to not regress?
** Changed in: sysvinit (Ubuntu Xenial)
Status: In Progress => Triaged
** Changed in: sysvinit (Ubuntu Xenial)
Assignee: Steve Langasek (vorlon) => (unassigned)
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https://bugs.launchpad.net/bugs/1572752
Title:
improve UTC setting migration on upgrades
Status in sysvinit package in Ubuntu:
Invalid
Status in sysvinit source package in Xenial:
Triaged
Bug description:
[SRU Justification]
On upgrade, some users who have selected a non-default setting for their
clock handling in the installer will see prompts for a conffile they never
edited by hand.
[Regression potential]
Because we are adding a pre-dependency to a package, there is risk of this
causing upgrade failures. The upgrade path should be tested aggressively with
different profiles from both 14.04 and 15.10 before publishing to -updates.
[Test case]
1. On a newly-installed 14.04 system, edit /etc/default/rcS to contain
'UTC=no' instead of 'UTC=yes'. Make no other changes to this file.
2. Enable -proposed in your apt sources.
3. Run do-release-upgrade or update-manager to upgrade to 16.04.
4. Confirm that the upgrade succeeds.
5. Confirm that you are not shown a conffile prompt for /etc/default/rcS on
upgrade.
6. Confirm that /etc/adjtime has been created, with 'LOCAL' as the third line
of the file.
7. Repeat steps 1-6 for a newly-installed 15.10 system.
slangasek | pitti: I see sysvinit Breaks: systemd (<< 228-5ubuntu3), but that
doesn't enforce systemd 228-5ubuntu3 being configured before sysvinit, which
means the conffile may already be migrated away before systemd postinst runs...
I think the right way to do this is with initscripts Pre-Depends: systemd, and
for initscripts' preinst script to handle any conffile cleaning so that users
are spared conffile prompts on upgrade
pitti | slangasek: ah, good point; this needs to be tested thoroughly,
pre-depends have some habit of causing trouble
See bug 1541532 and
http://launchpadlibrarian.net/236311219/systemd_228-5ubuntu2_228-5ubuntu3.diff.gz
and
http://launchpadlibrarian.net/236367969/sysvinit_2.88dsf-59.3ubuntu1_2.88dsf-59.3ubuntu2.diff.gz
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