linux-kernel - Re: Why is /dev on a different filesystem ? [Kernel 2.6.20.3]

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Message-Id: <200703211920.l2LJKI1K019114@turing-police.cc.vt.edu>
Date:	Wed, 21 Mar 2007 15:20:18 -0400
From:	Valdis.Kletnieks@...edu
To:	rol@...917.net
Cc:	"'LKML'" <linux-kernel@...r.kernel.org>
Subject: Re: Why is /dev on a different filesystem ? [Kernel 2.6.20.3]

On Wed, 21 Mar 2007 20:13:50 BST, Paul Rolland said:
>
> So, obviously, tar is right...
> man 2 stat says :
>        The st_dev field describes the device on which this file resides.
> 
> and df -a reports :
> [root@...t-181 src]# df -a
> Filesystem           1K-blocks      Used Available Use% Mounted on
> /dev/hda1              7936256   3105556   4421048  42% /

> So, obviously, /dev is on /, but the stat(2) says no.
> Who is right, and where is the bug ?

Might want to 'cat /proc/mounts', and ponder the fact that a filesystem
can be mounted and not listed in /etc/mtab, and then see if your system
has 'udev' installed and enabled.

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