Re: / listed twice in /proc/mounts

From: Pierfrancesco Caci (ik5pvx@penny.ik5pvx.ampr.org)
Date: Sat Mar 29 2003 - 02:24:31 EST


:-> "Ken" == Ken Moffat <ken@kenmoffat.uklinux.net> writes:

> On 27 Mar 2003, Christian Laursen wrote:
>> The other day, I upgraded the components of a software package
>> that I maintain, including updating the kernel from 2.4.18 to
>> 2.4.20.
>>
>> I noticed something strange: / is now listed twice in /proc/mounts
>> like this
>>
>> rootfs / rootfs rw 0 0
>> /dev/root / ext2 rw 0 0
>>
>> It confused one of my scripts, so I had to implement a quick workaround.
>>
>> Is this a feature or a bug?
>>

> Is your /etc/mtab a symlink to /proc/mounts ? That is generally
> thought not to be a good idea.

I have the same "double root":

# cat /proc/mounts
rootfs / rootfs rw 0 0
/dev/root / ext3 rw 0 0
[...]

# ls -las /dev/root
   0 lr-xr-xr-x 1 root root 4 Mar 22 15:07 /dev/root -> md/0

# ls -als /etc/mtab
   1 -rw-r--r-- 1 root root 345 Mar 23 15:55 /etc/mtab

# cat /etc/mtab
/dev/md0 / ext3 rw 0 0
[...]

could it be a 'feature' of devfs, or maybe of raid devices ?

kernel version is 2.4.21-pre5-ac3

Pf

-- 

------------------------------------------------------------------------------- Pierfrancesco Caci | ik5pvx | mailto:p.caci@tin.it - http://gusp.dyndns.org Firenze - Italia | Office for the Complication of Otherwise Simple Affairs Linux penny 2.4.21-pre5-ac3 #1 Sat Mar 15 22:04:18 CET 2003 i686 GNU/Linux

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