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From: Peter Korsgaard <jacmet@uclibc.org>
To: buildroot@busybox.net
Subject: [Buildroot] devtmpfs and initramfs
Date: Tue, 19 Jul 2011 12:33:13 +0200	[thread overview]
Message-ID: <87aaca4l1y.fsf@macbook.be.48ers.dk> (raw)
In-Reply-To: <201107191222.19313.arnout@mind.be> (Arnout Vandecappelle's message of "Tue, 19 Jul 2011 12:22:19 +0200")

>>>>> "Arnout" == Arnout Vandecappelle <arnout@mind.be> writes:

 Arnout>  Hoi all,

 Arnout>  I'm using an initramfs as the root filesystem image, and
 Arnout> devtmpfs for the devices.  However, it turns out that devtmpfs
 Arnout> doesn't get mounted automatically if the root filesystem is an
 Arnout> initramfs (at least in 2.6.35).

Indeed, init/mainc::kernel_init() doesn't call prepare_namespace()
(which calls devtmpfs_mount()) if an initramfs with an /init is found.

 Arnout>  I ended up adding the following to my inittab:

 Arnout> null::sysinit:/bin/mount -t devtmpfs devtmpfs /dev

 Arnout>  Does anyone know a more elegant solution?

Not really - Besides adding a devtmps_mount() call in kernel_init(), but
that's kind of icky as well.

-- 
Bye, Peter Korsgaard

  reply	other threads:[~2011-07-19 10:33 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-19 10:22 [Buildroot] devtmpfs and initramfs Arnout Vandecappelle
2011-07-19 10:33 ` Peter Korsgaard [this message]
2011-07-19 11:23   ` Arnout Vandecappelle
2011-07-20  7:44     ` Diego Iastrubni
2011-07-20  8:01       ` Peter Korsgaard
2011-07-20  8:03       ` Arnout Vandecappelle
2011-07-20  8:15     ` Peter Korsgaard
2011-07-20  8:48       ` Diego Iastrubni
2011-07-20  8:57         ` Arnout Vandecappelle
2011-07-20 10:52           ` Peter Korsgaard
2011-07-20 11:00             ` Arnout Vandecappelle
2011-07-20 17:41               ` Peter Korsgaard
2011-07-20 15:10           ` Arnout Vandecappelle
2011-07-20 15:29             ` Peter Korsgaard

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