Strange mount
in [Setup]
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From: Guillaume Dargaud on 22 Apr 2008 08:03 Hello all, Does this seem normal ? I find having both rootfs and /dev/root mounted on / weird... It's a minimalist embedded linux system. # df Filesystem Size Used Available Use% Mounted on rootfs 394.6M 7.9M 386.7M 2% / /dev/root 394.6M 7.9M 386.7M 2% / tmpfs 62.3M 28.0k 62.3M 0% /tmp # mount rootfs on / type rootfs (rw) /dev/root on / type ext2 (rw) proc on /proc type proc (rw) devpts on /dev/pts type devpts (rw) tmpfs on /tmp type tmpfs (rw) # cat /etc/fstab /dev/root / ext2 rw,noauto 0 1 proc /proc proc defaults 0 0 devpts /dev/pts devpts defaults,gid=5,mode=620 0 0 tmpfs /tmp tmpfs defaults 0 0 -- Guillaume Dargaud http://www.gdargaud.net/
From: Jean-David Beyer on 22 Apr 2008 08:53 Guillaume Dargaud wrote: > Hello all, > Does this seem normal ? I find having both rootfs and /dev/root mounted on / > weird... It's a minimalist embedded linux system. > > # df > Filesystem Size Used Available Use% Mounted on > rootfs 394.6M 7.9M 386.7M 2% / > /dev/root 394.6M 7.9M 386.7M 2% / > tmpfs 62.3M 28.0k 62.3M 0% /tmp > > # mount > rootfs on / type rootfs (rw) > /dev/root on / type ext2 (rw) > proc on /proc type proc (rw) > devpts on /dev/pts type devpts (rw) > tmpfs on /tmp type tmpfs (rw) > > # cat /etc/fstab > /dev/root / ext2 rw,noauto 0 1 > proc /proc proc defaults 0 0 > devpts /dev/pts devpts defaults,gid=5,mode=620 0 0 > tmpfs /tmp tmpfs defaults 0 0 > It does not seem normal at all. Why would you put any file system in /dev ? Why not mount the root file system on / ? You better be more clear what you are trying to do. -- .~. Jean-David Beyer Registered Linux User 85642. /V\ PGP-Key: 9A2FC99A Registered Machine 241939. /( )\ Shrewsbury, New Jersey http://counter.li.org ^^-^^ 08:50:01 up 35 days, 13:52, 4 users, load average: 4.24, 4.26, 4.20
From: Nico Kadel-Garcia on 22 Apr 2008 11:04 Jean-David Beyer wrote: > Guillaume Dargaud wrote: >> Hello all, >> Does this seem normal ? I find having both rootfs and /dev/root mounted on / >> weird... It's a minimalist embedded linux system. >> >> # df >> Filesystem Size Used Available Use% Mounted on >> rootfs 394.6M 7.9M 386.7M 2% / >> /dev/root 394.6M 7.9M 386.7M 2% / >> tmpfs 62.3M 28.0k 62.3M 0% /tmp >> >> # mount >> rootfs on / type rootfs (rw) >> /dev/root on / type ext2 (rw) >> proc on /proc type proc (rw) >> devpts on /dev/pts type devpts (rw) >> tmpfs on /tmp type tmpfs (rw) >> >> # cat /etc/fstab >> /dev/root / ext2 rw,noauto 0 1 >> proc /proc proc defaults 0 0 >> devpts /dev/pts devpts defaults,gid=5,mode=620 0 0 >> tmpfs /tmp tmpfs defaults 0 0 >> > > It does not seem normal at all. Why would you put any file system in /dev ? > Why not mount the root file system on / ? > > You better be more clear what you are trying to do. Friend, you need to look up devpts. It normally goes there, for handling pty or pseudo-terminal devices. The root file system *IS* mounted on /. A lot of embedded devices have a little static, read-only / partition, which provides editable access to a RAM based file-system on top of it via all sorts of cute tricks. Try booting with an Ubuntu live CD and see what you get, for comparison.
From: Doug Freyburger on 22 Apr 2008 17:20 "Guillaume Dargaud" <use_the_form_on_my_contact_p...(a)www.gdargaud.net> wrote: > > Does this seem normal ? I find having both rootfs and /dev/root mounted on / > weird... It's a minimalist embedded linux system. I've seen it but it seemed strange to me. Have not yet had time to look up version differences and why a "rootfs" type filesystem appears as an extra mount on a few systems I support. > # df > Filesystem Size Used Available Use% Mounted on > rootfs 394.6M 7.9M 386.7M 2% / > /dev/root 394.6M 7.9M 386.7M 2% / ... > # mount > rootfs on / type rootfs (rw) > /dev/root on / type ext2 (rw) ... > # cat /etc/fstab > /dev/root / ext2 rw,noauto 0 1 ...
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