From: Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua>
To: jw schultz <jw@pegasys.ws>, Linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: About /etc/mtab and /proc/mounts
Date: Thu, 27 Feb 2003 14:48:33 +0200 [thread overview]
Message-ID: <200302271251.h1RCpas29798@Port.imtp.ilyichevsk.odessa.ua> (raw)
In-Reply-To: <20030227092121.GG15254@pegasys.ws>
On 27 February 2003 11:21, jw schultz wrote:
> On Thu, Feb 27, 2003 at 05:42:30PM +0900, Miles Bader wrote:
> > Kasper Dupont <kasperd@daimi.au.dk> writes:
> > > > Yes. On some systems, /var and /tmp are the _only_ read-write
> > > > filesystems.
> > >
> > > OK, but then on such a system with my approach it would be
> > > possible to make /mtab.d a symlink pointing to somewhere under
> > > /var.
> >
> > ... you could do the same with /etc/mtab.
> >
> > In fact since /etc is almost guaranteed to be on the same
> > filesystem as /, it seems like "/mtab.d" offers zero advantages
> > over just /etc/mtab -- the case where /etc/mtab is the most
> > annoying is when /etc is R/O, but this almost always means that /
> > will be R/O, making /mtab.d useless too.
>
> If you netboot /etc as its own filesystem make sense. Why
> duplicate the rest of root just for /etc. /etc, /var and
> /tmp are the only filesystems that have much reason to be
> unique to a system; all others are easily sharable and most
> others read-only.
This is my netboot root fs, it is shared across all workstations
(NB: .local is "mount --bind"ed to workstation-private directory):
# ls -la /
drwxr-xr-x 6 root root 4096 Mar 12 2002 .local
drwxr-xr-x 15 root root 4096 Feb 14 11:12 .share
dr-xr-xr-x 2 root root 4096 Jan 16 14:29 bin
dr-xr-xr-x 20 root root 1024 Feb 4 13:23 boot
drwxr-xr-x 1 root root 0 Jan 1 1970 dev
drwxr-xr-x 3 root root 4096 Jan 16 14:29 lib
dr-xr-xr-x 68 root root 0 Feb 27 15:42 proc
lrwxrwxrwx 1 root root 3 Oct 24 15:20 sbin -> bin
lrwxrwxrwx 1 root root 12 Nov 12 2001 root -> /.share/root
lrwxrwxrwx 1 root root 12 Nov 12 2001 home -> /.share/home
lrwxrwxrwx 1 root root 11 Nov 12 2001 usr -> /.share/usr
lrwxrwxrwx 1 root root 11 Nov 12 2001 mnt -> /.local/mnt
lrwxrwxrwx 1 root root 11 Jun 7 2002 etc -> /.local/etc
lrwxrwxrwx 1 root root 11 Nov 12 2001 tmp -> /.local/tmp
lrwxrwxrwx 1 root root 11 Nov 12 2001 var -> /.local/var
--
vda
next prev parent reply other threads:[~2003-02-27 12:48 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-19 11:21 About /etc/mtab and /proc/mounts DervishD
2003-02-26 9:18 ` Kasper Dupont
2003-02-26 10:26 ` Miquel van Smoorenburg
2003-02-26 11:00 ` Olaf Dietsche
2003-02-26 11:14 ` Måns Rullgård
2003-02-26 11:44 ` Kasper Dupont
2003-02-26 12:16 ` Olaf Dietsche
2003-02-26 12:34 ` Måns Rullgård
2003-02-26 13:39 ` Olaf Dietsche
2003-02-26 13:54 ` Måns Rullgård
2003-02-26 14:23 ` Olaf Dietsche
2003-02-27 4:14 ` Miles Bader
2003-02-27 6:40 ` Kasper Dupont
2003-02-27 7:03 ` Joseph Wenninger
2003-02-27 8:28 ` Kasper Dupont
2003-03-05 0:03 ` Jamie Lokier
2003-02-27 7:06 ` Miles Bader
2003-02-27 8:25 ` Kasper Dupont
2003-02-27 8:42 ` Miles Bader
2003-02-27 9:21 ` jw schultz
2003-02-27 9:49 ` Miles Bader
2003-02-27 23:33 ` Kasper Dupont
2003-02-27 12:48 ` Denis Vlasenko [this message]
2003-02-27 23:28 ` Kasper Dupont
2003-02-28 6:15 ` Denis Vlasenko
2003-03-02 13:04 ` DervishD
2003-03-02 14:16 ` Kasper Dupont
2003-03-03 1:04 ` jw schultz
2003-03-03 12:22 ` Kasper Dupont
2003-03-04 2:02 ` jw schultz
2003-03-05 12:57 ` Kasper Dupont
2003-03-06 1:18 ` jw schultz
2003-03-06 23:30 ` Kasper Dupont
2003-03-04 11:16 ` DervishD
2003-03-04 11:08 ` DervishD
2003-02-27 9:46 ` Kasper Dupont
2003-02-27 9:58 ` Miles Bader
2003-02-27 12:26 ` Gabriel Paubert
2003-02-27 7:07 ` Joseph Wenninger
2003-02-27 7:08 ` Dominik Kubla
2003-02-27 8:12 ` Kasper Dupont
2003-02-27 9:11 ` Dominik Kubla
2003-02-27 16:00 ` Horst von Brand
2003-02-27 16:31 ` Christoph Hellwig
2003-02-27 16:40 ` Dominik Kubla
2003-02-27 19:47 ` Kasper Dupont
2003-02-27 22:13 ` Valdis.Kletnieks
2003-02-27 22:31 ` Kasper Dupont
2003-02-27 23:54 ` Miquel van Smoorenburg
2003-02-28 1:37 ` Miles Bader
2003-03-02 12:53 ` DervishD
2003-03-02 14:00 ` Kasper Dupont
2003-03-04 11:02 ` DervishD
2003-03-04 12:09 ` Kasper Dupont
2003-03-04 14:53 ` DervishD
2003-03-02 12:51 ` DervishD
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