Re: [Bug-tar] tar 1.23: Problem under Solaris 10 - incorrect GNU header contents

[Dustin J. Mitchell]

On Fri, Jun 4, 2010 at 11:18 AM, Armistead, Jason
<address@hidden> wrote:
> From what I've seen of 7-Zip's source, it isn't checking that the "ustar" and 
> "00" fields are correct.  But, nevertheless, my installations of GNU tar are 
> NOT producing the same binary output for these as other TAR files I get off 
> the internet.  This troubles me, and makes me wonder what else is being 
> screwed up.  I don't want to discover years from now that my old system is 
> dead and buried, and the TAR files it produced are worthless ...   Maybe the 
> same bug is also causing other problems elsewhere.  I just can't be sure !

Try using some other --format arguments to tar.  The formats are more
or less identical for "simple" filesystems, and differ in how they
deal with symlinks, long filenames, funny characters, and so on (yes,
this is a gross simplification).  I suspect that for most of your
partitions, tar is creating an archive that doesn't contain anything
7-zip finds confusing, but for this particular partition, tar is
creating a tarfile with a GNU-specific option that 7-zip chokes on.

Dustin

-- 
Open Source Storage Engineer
http://www.zmanda.com