From: Dave Reisner <d@falconindy.com>
To: Phillip Susi <psusi@ubuntu.com>
Cc: util-linux@vger.kernel.org
Subject: Re: pivot_root depreciated?
Date: Wed, 29 Jan 2014 10:29:21 -0500 [thread overview]
Message-ID: <20140129152921.GD905@rampage> (raw)
In-Reply-To: <52E91888.4080601@ubuntu.com>
On Wed, Jan 29, 2014 at 10:04:40AM -0500, Phillip Susi wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> I could have sworn that the pivot_root syscall was considered a
> fragile dirty hack that needed to die in a fire, and everyone switched
> to run-init years ago. Am I misremembering things or does anyone know
> what I'm talking about?
pivot_root is still useful. It's used by systemd on shutdown to allow
the system to return to an initramfs where the root filesystem can be
unmounted and disassembled (e.g. close crypto mappings). Both dracut and
mkinitcpio provide support for this.
I'm not familiar with run-init but, glancing at the code, it looks like
it does the same job of util-linux's switch_root.
d
next prev parent reply other threads:[~2014-01-29 15:29 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-29 15:04 pivot_root depreciated? Phillip Susi
2014-01-29 15:29 ` Dave Reisner [this message]
2014-01-30 8:16 ` Karel Zak
2014-01-30 14:15 ` Phillip Susi
2014-01-30 14:50 ` Thomas Bächler
2014-01-30 15:20 ` Phillip Susi
2014-01-30 16:13 ` Thomas Bächler
2014-02-03 10:31 ` Michal Soltys
2014-02-03 11:10 ` Kevin Wilson
2014-01-31 9:17 ` Karel Zak
2014-01-31 9:21 ` Thomas Bächler
2014-01-30 14:54 ` Dave Reisner
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