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.


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