Imported using git-ubuntu import.
Changelog parent: e4b41272e202e6ea178e9752fe4967de9f33a5fb
New changelog entries:
[ Steve Langasek ]
* Remove spurious call to 'sync'; we don't need to flush all disk caches
on the system to cleanly unmount a partition.
[ Michael Hudson-Doyle ]
* only show alert (i.e. panic) kernel messages on the console when
subiquity is running