From: Pandu Poluan <pandu@poluan.info>
To: gentoo-user <Gentoo-user@lists.gentoo.org>
Subject: [gentoo-user] Replace root with aufs-united sda & squashfs
Date: Sat, 23 Jul 2011 11:01:43 +0700 [thread overview]
Message-ID: <CAA2qdGWtkCsP8Fr6+BTOpdS94Xjz6rHemaOeHQLk2UCQ5E1jyA@mail.gmail.com> (raw)
As part of Project:Protogenoi [1], I am planning to replace root with
a united filesystem using aufs. The layers will be:
Top: /dev/xvda3 (Xen/XenServer Virtual Disk device)
Bottom: /.root.sqfs
The aim would be to generate the smallest .xva (XenServer Virtual
Appliance) possible. To achieve this, the 'physical root' at /dev/sda3
will be emptied as empty as possible, except for /etc and /dev.
AFAIK, there are files that *must* still exist for this strategy to
succeed. However, this post from f.g.o [2] said that those files
aren't necessary. So, I should do the following sequence in /etc/fstab
:
1. Mount /dev/xvda3 as /
2. Mount /.root.sqfs as /
3. Mount aufs, uniting /dev/xvda3 and /.root.sqfs as /
4. Mount everything else
Am I getting this right?
[1] http://en.gentoo-wiki.com/wiki/User:Pepoluan/Project:Protogenoi
[2] http://forums.gentoo.org/viewtopic-p-5707187.html?sid=b8feb20174c9d8d9ae74fc82a30ce911#5707187
Rgds,
--
--
Pandu E Poluan - IT Optimizer
My website: http://pandu.poluan.info/
next reply other threads:[~2011-07-23 4:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-23 4:01 Pandu Poluan [this message]
2011-07-24 18:37 ` [gentoo-user] Re: Replace root with aufs-united sda & squashfs Nicolas Sebrecht
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