From: Rich Freeman <rich0@gentoo.org>
To: gentoo-dev <gentoo-dev@lists.gentoo.org>
Subject: Re: [gentoo-dev] rfc: Does OpenRC really need mount-ro
Date: Tue, 16 Feb 2016 13:22:13 -0500 [thread overview]
Message-ID: <CAGfcS_mus8xykkCSd+WXZmx68SABa6AJXHKvKSao77WMbVH9sw@mail.gmail.com> (raw)
In-Reply-To: <20160216180533.GB1450@whubbs1.gaikai.biz>
On Tue, Feb 16, 2016 at 1:05 PM, William Hubbs <williamh@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
next prev parent reply other threads:[~2016-02-16 18:22 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-16 18:05 [gentoo-dev] rfc: Does OpenRC really need mount-ro William Hubbs
2016-02-16 18:22 ` Rich Freeman [this message]
2016-02-16 18:41 ` William Hubbs
2016-02-17 2:20 ` [gentoo-dev] " Duncan
2016-02-17 13:46 ` Rich Freeman
2016-02-18 8:57 ` Duncan
2016-02-18 12:22 ` Rich Freeman
2016-02-19 5:07 ` Duncan
2016-02-25 23:46 ` Raymond Jennings
2016-02-17 14:24 ` Richard Yao
2016-02-17 17:19 ` Rich Freeman
2016-02-17 17:30 ` James Le Cuirot
2016-02-17 18:06 ` Ian Stakenvicius
2016-02-17 18:32 ` Rich Freeman
2016-02-18 3:11 ` Richard Yao
2016-02-18 9:02 ` James Le Cuirot
2016-02-18 11:39 ` Rich Freeman
2016-02-17 21:50 ` Daniel Campbell
2016-02-18 3:02 ` Richard Yao
2016-02-18 10:48 ` Rich Freeman
2016-02-17 14:05 ` [gentoo-dev] " Richard Yao
2016-02-16 19:31 ` Patrick Lauer
2016-02-16 20:18 ` Rich Freeman
2016-02-17 14:06 ` Richard Yao
2016-02-17 19:01 ` Andrew Savchenko
2016-02-17 19:26 ` Rich Freeman
2016-02-18 3:26 ` Richard Yao
2016-02-18 7:53 ` Andrew Savchenko
2016-02-16 20:03 ` Daniel Campbell
2016-02-17 8:24 ` Luca Barbato
2016-02-17 14:00 ` Richard Yao
2016-02-18 7:02 ` Robin H. Johnson
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