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openBSD 3.7 tar command - tar: Invalid header, starting valid header search
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jKILLSPAM.schipper@math.u
*nix forums Guru Wannabe


Joined: 13 Nov 2005
Posts: 202

PostPosted: Tue Jul 04, 2006 6:35 pm    Post subject: Re: openBSD 3.7 tar command - tar: Invalid header, starting valid header search Reply with quote

Clever Monkey <clvrmnky.invalid@hotmail.com.invalid> wrote:
Quote:
pankajtakawale wrote:
I have 17 MB tar file created on suse9,
When I tvf or xvf that file on openBSD 3.7, at the end of listing or
extracting, tar displays following warning messages

tar: Invalid header, starting valid header search.
tar: End of archive volume 1 reached

But listing & extracting works just fine.
I ran md5sum command on all files - extracted using openBSD 3.7 tar AND
extracted using suse9 tar. Checksum is same for both extracted files.
But when i tvf or xvf the same tar file on other OSs like suse9 ,
solaris, it doesnt throw these warnings.

What causes openbsd throw this messages?

What are the UID/GIDs on the files in the archive. Isn't there a known
issue if they are larger than 2^30?

Check the Neohapsis archives and friends -- I'm sure I've seen similar
reports before.

Some broken tar implementations write them, and GNU tar is a bit more
liberal. However, I forgot the exact reason...

Generally, they work fine - IIRC, a tar archive is by convention ended
by two null somethings, and those archives only have one, but since EOF
also works in this case, everything's fine.

Joachim
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void * clvrmnky()
*nix forums Guru Wannabe


Joined: 01 Mar 2006
Posts: 152

PostPosted: Tue Jul 04, 2006 5:28 pm    Post subject: Re: openBSD 3.7 tar command - tar: Invalid header, starting valid header search Reply with quote

pankajtakawale wrote:
Quote:
I have 17 MB tar file created on suse9,
When I tvf or xvf that file on openBSD 3.7, at the end of listing or
extracting, tar displays following warning messages

tar: Invalid header, starting valid header search.
tar: End of archive volume 1 reached

But listing & extracting works just fine.
I ran md5sum command on all files - extracted using openBSD 3.7 tar AND
extracted using suse9 tar. Checksum is same for both extracted files.
But when i tvf or xvf the same tar file on other OSs like suse9 ,
solaris, it doesnt throw these warnings.

What causes openbsd throw this messages?

What are the UID/GIDs on the files in the archive. Isn't there a known

issue if they are larger than 2^30?

Check the Neohapsis archives and friends -- I'm sure I've seen similar
reports before.
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pankajtakawale
*nix forums beginner


Joined: 29 Aug 2005
Posts: 21

PostPosted: Tue Jul 04, 2006 11:40 am    Post subject: openBSD 3.7 tar command - tar: Invalid header, starting valid header search Reply with quote

I have 17 MB tar file created on suse9,
When I tvf or xvf that file on openBSD 3.7, at the end of listing or
extracting, tar displays following warning messages

tar: Invalid header, starting valid header search.
tar: End of archive volume 1 reached

But listing & extracting works just fine.
I ran md5sum command on all files - extracted using openBSD 3.7 tar AND
extracted using suse9 tar. Checksum is same for both extracted files.
But when i tvf or xvf the same tar file on other OSs like suse9 ,
solaris, it doesnt throw these warnings.

What causes openbsd throw this messages?
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