[Voyage-linux] help with sync scripts

[Robert Rawlins - Think Blue]

Hey Rodney,

Thanks for the reply, I appreciate your help on this. I've just tried
running that command as suggested and it doesn't really appear to make any
difference, it still doesn't actually save the changes onto the card until a
shutdown occurs.

Do you have any other suggestions? I'm sure we must be fairly close to
having a solution, seems wierd that their isn't a script for saving the
changes to the solid state, I'd have thought this would be helpfull to a lot
of people.

Rob

-----Original Message-----
From:
voyage-linux-bounces+robert.rawlins=thinkbluemedia.co.uk at list.voyage.hk
[mailto:voyage-linux-bounces+robert.rawlins=thinkbluemedia.co.uk at list.voyage
.hk] On Behalf Of rodney at optimail.com.au
Sent: 17 November 2009 01:53
To: voyage-linux at voyage.hk
Subject: Re: [Voyage-linux] help with sync scripts

Robert,

 looking through voyage-sync: despite the word 'sync' appearing throughout,
 I think it isn't actually doing a file system sync, it is just copying
 the writeable layer (tmpfs/aufs) to the underlying layer e.g. flash drive.

 That may not sync for some time, or shutdown.

 How about doing this for an experiment:
remountrw
/etc/init.d/voyage-sync sync
sync
remountro


Rodney


Robert Rawlins wrote:
...
# apart from /var/tmp and /var/log, add extra directories to sync from tmpfs

VOYAGE_SYNC_DIRS="/etc/thinkblue"

And this appears to work well, any changes in this directory are committed
to the disk on reboot. However, trying to sync this directory manually like
follows:

remountrw
/etc/init.d/voyage-sync sync
remountro


The commands run just fine, however, if I then simulate a power loss by
pulling the plug and restarting the system then the changes are not there
when the system comes back to life.
...

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