[Box Backup] Restoring a corrupted archive?

[Chris Wilson]

Hi Magnus,

On Sat, 26 Apr 2008, Magnus Homann wrote:

> My name is Magnus, and my disk crashed. :-)

Sorry to hear that. How long have you been a disk crasher for?</dca 
meeting>

> Luckily, i have run boxbackup on it. :-) Unfortunately, the bbstored is 
> writing to the same disk. :-( Luckily, I rsync every night the files 
> written by bbstored to a remote server. :-) Unfortunately, the crash was 
> probably while rsyncing. :-(

I think you're probably in luck.

> So, I have a local disk with a messed up file system, backed up to the 
> same file system - yes, I know... - and then rsynced off-site.
> 
> What can bbstored do with an archive that is partly rsynched from a 
> newer version?

It should just work after you run "bbstoreaccounts check fix" to correct 
any problems with the account. I hope you have a copy of the encryption 
key :-)

> Can I check if the bbstored archive is consistent on my local disk? Can I
> recreate the remote archive that may/may not be consistent?

Just run "bbstoreaccounts check fix" on it as well.

> What non-.intrusive checks can I make, can I start bbstored in a 
> 'read-only' mode?

Unfortunately there is no such mode at the moment. I can see how it might 
be useful, particularly to disable housekeeping.

You will need read/write access to check and fix the account, but you can 
probably remount the filesystem read-only after that and run bbstored on 
it. If not, let me know how it fails and I'll try to come up with a quick 
hacky patch to fix it.

Cheers, Chris.
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