[oe] Making /var/lib persistent

[Justin Patrin]

On 4/18/07, Jamie Lenehan <lenehan at twibble.org> wrote:
> On Wed, Apr 18, 2007 at 07:24:15AM -0700, Koen Kooi wrote:
> [...]
> > Sound like a good idea, do you have a patch for this?
>
> Try this out:
>
>   http://twibble.org/dist/oe/var-volatiles-1.patch
>

I suggest attaching this patch to a bug in the bug tracker
(bugs.openembedded.org).

> I've tested it locally both with and without tmpfs mounted on
> /var/volatile and all seems to work as expected.
>
> I modified the base-files recipe to create the /var/volatile
> directory and the various subdirectories in it and to create symlinks
> from /var for those directories. This means that even if your not
> using tmpfs these will still point into the volatile directory. It
> was rather difficult to make it wotk without doing this.
>
> So on the target I end up with this:
>
>   root at titan:/$ find /var -exec ls -ld {} \;
>   drwxr-xr-x    7 root     root          288 Apr 19  2007 /var
>   drwxr-xr-x    4 root     root           96 Apr 19  2007 /var/lib
>   drwxr-xr-x    2 root     root          168 Apr 19  2007 /var/lib/ipkg
>   -rw-r--r--    1 root     root       196192 Apr 19  2007 /var/lib/ipkg/nynaeve-titan
>   -rw-r--r--    1 root     root        14408 Apr 19  2007 /var/lib/ipkg/nynaeve-all
>   -rw-r--r--    1 root     root      2670761 Apr 19  2007 /var/lib/ipkg/nynaeve-sh4
>   drwxr-xr-x    2 root     root           48 Apr 19  2007 /var/lib/misc
>   lrwxrwxrwx    1 root     root           12 Apr 19  2007 /var/log -> volatile/log
>   lrwxrwxrwx    1 root     root           12 Apr 19  2007 /var/run -> volatile/run
>   lrwxrwxrwx    1 root     root           17 Apr 19  2007 /var/tmp -> volatile/tmp
>   lrwxrwxrwx    1 root     root           13 Apr 19  2007 /var/lock -> volatile/lock
>   lrwxrwxrwx    1 root     root           14 Apr 19  2007 /var/cache -> volatile/cache
>   drwxr-sr-x    2 root     root           48 Apr 19  2007 /var/local
>   drwxr-xr-x    2 root     root           48 Apr 19  2007 /var/spool
>   drwxr-xr-x    2 root     root           48 Apr 19  2007 /var/backups
>   drwxr-xr-x    7 root     root          140 Jan  1 00:32 /var/volatile
>   drwxrwxrwt    2 root     root           40 Jan  1 00:32 /var/volatile/tmp
>   drwxr-xr-x    2 root     root           60 Jan  1 00:32 /var/volatile/run
>   -rw-rw-r--    1 root     root            0 Jan  1 00:33 /var/volatile/run/utmp
>   drwxr-xr-x    2 root     root           60 Jan  1 00:32 /var/volatile/log
>   -rw-rw-r--    1 root     root            0 Jan  1 00:33 /var/volatile/log/wtmp
>   drwxrwxrwt    3 root     root           60 Jan  1 00:32 /var/volatile/lock
>   drwxr-xr-x    2 root     root           40 Jan  1 00:32 /var/volatile/lock/subsys
>   drwxr-xr-x    2 root     root           40 Jan  1 00:32 /var/volatile/cache
>   root at titan:/$ mount | grep var
>   tmpfs on /var/volatile type tmpfs (rw)
>   root at titan:/$
>
> --
>  Jamie Lenehan <lenehan at twibble.org>
>
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-- 
Justin Patrin