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| From: | Pandu Poluan <pandu@××××××.info> |
|---|---|
| To: | gentoo-user <Gentoo-user@l.g.o> |
| Subject: | [gentoo-user] Replace root with aufs-united sda & squashfs |
| Date: | Sat, 23 Jul 2011 04:03:15 |
| Message-Id: | CAA2qdGWtkCsP8Fr6+BTOpdS94Xjz6rHemaOeHQLk2UCQ5E1jyA@mail.gmail.com |
| 1 | As part of Project:Protogenoi [1], I am planning to replace root with |
| 2 | a united filesystem using aufs. The layers will be: |
| 3 | |
| 4 | Top: /dev/xvda3 (Xen/XenServer Virtual Disk device) |
| 5 | Bottom: /.root.sqfs |
| 6 | |
| 7 | The aim would be to generate the smallest .xva (XenServer Virtual |
| 8 | Appliance) possible. To achieve this, the 'physical root' at /dev/sda3 |
| 9 | will be emptied as empty as possible, except for /etc and /dev. |
| 10 | |
| 11 | AFAIK, there are files that *must* still exist for this strategy to |
| 12 | succeed. However, this post from f.g.o [2] said that those files |
| 13 | aren't necessary. So, I should do the following sequence in /etc/fstab |
| 14 | : |
| 15 | |
| 16 | 1. Mount /dev/xvda3 as / |
| 17 | 2. Mount /.root.sqfs as / |
| 18 | 3. Mount aufs, uniting /dev/xvda3 and /.root.sqfs as / |
| 19 | 4. Mount everything else |
| 20 | |
| 21 | Am I getting this right? |
| 22 | |
| 23 | [1] http://en.gentoo-wiki.com/wiki/User:Pepoluan/Project:Protogenoi |
| 24 | [2] http://forums.gentoo.org/viewtopic-p-5707187.html?sid=b8feb20174c9d8d9ae74fc82a30ce911#5707187 |
| 25 | |
| 26 | |
| 27 | Rgds, |
| 28 | |
| 29 | |
| 30 | -- |
| 31 | -- |
| 32 | Pandu E Poluan - IT Optimizer |
| 33 | My website: http://pandu.poluan.info/ |
| Subject | Author |
|---|---|
| [gentoo-user] Re: Replace root with aufs-united sda & squashfs | Nicolas Sebrecht <nicolas.s-dev@×××××××.net> |