Re: [BackupPC-users] backing up ACL's ...

[<cba...@us...>]

di...@fr... writes:

> I need to backup a directory containing ACL. I read a few threads on the net
> explaining that gnu tar is not able to backup ACL and there are chances it will
> never be.
> 
> The reason is that it would break compatibility with other tar files cause it
> would require to modify  header size... Anyway since tar won't work, I read
> about 'star' an other "tape archiver" with (mostly) argument compatibility with
> tar and supporting ACL: see http://acl.bestbits.at/star.html
> 
> So I changed in config.pl , {TarClientPath} from 'gtar'' to 'star' and edited
> a few other options that where not understood by star. And I tried it :),
> and it failed :(
> 
> Would it be difficult to make backuppc work with star instead of tar? Does
> backuppc depend on some unique gnu tar feature?

BackupPC_tarExtract doesn't understand the richer tar file format
that star uses.  In principal it could be supported, which would
allow support for ACLs, UTF8 file names etc.

ACL support is on the long-term feature list for BackupPC, mainly
being paced by when smbclient, tar and rsync provide ACL support.
It looks like star could be the natural upgrade to tar.

Craig