[CalendarServer-users] off topic: tar --xattr

Stroller stroller at stellar.eclipse.co.uk
Thu May 28 13:03:05 PDT 2009

On 28 May 2009, at 20:23, Pim Zandbergen wrote:
> ...
> I was trying to make a backup of /var/spool/caldavd, preserving the  
> extended
> attributes, when discovering that Ubuntu's tar does not have a -- 
> xattr switch.
> The same version of tar on my Fedora boxes do support that. Is that  
> a Fedora
> extension, or an Ubuntu omission? What do Ubuntu people use to backup
> files with extended attributes?

If you run `tar --version` you'll probably find both machines are  
running GNU tar.

I suspect that GNU tar supports extended attributes at source, but  
enabling it may be optional at compile time and that Ubuntu have  
chosen not to enable it when they built the package. Ubuntu may have a  
separate tar-xattr package that contains an enabled-binary, or you may  
be able to obtain one from a different source. Worst case is that  
you'll have to compile it yourself (download the gzipped tar from <http://www.gnu.org/software/tar/ 
 >, untar it, then uninstall Ubuntu's tar using synaptic or whatever).

Suggest you search the notoriously helpful Ubuntu forums for "tar  
extended attributes xattr" and see what others suggest.


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