On Tue, Feb 16, 2016 at 1:05 PM, William Hubbs <willi...@gentoo.org> wrote: > > The reason it exists is very vague to me; I think it has something to do > with claims of data loss in the past. >
Is there some other event that will cause all filesystems to be remounted read-only or unmounted before shutdown? You definitely will want to either unmount or remount readonly all filesystems prior to rebooting. I don't think the kernel guarantees that this will happen (I'd have to look at it). Just doing a sync before poweroff doesn't seem ideal - if nothing else it will leave filesystems marked as dirty and likely force fscks on the next boot (or at least it should - if it doesn't that is another opportunity for data loss). There are different ways of accomplishing this of course, but you really want to have everything read-only in the end. -- Rich