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Re: [Bug-tar] new/old extract problems with 6GB sparse file

From: Joerg Delker
Subject: Re: [Bug-tar] new/old extract problems with 6GB sparse file
Date: Sun, 18 Jun 2006 22:00:45 +0200
User-agent: Thunderbird (X11/20060516)

Joerg Schilling wrote:
 Joerg Delker <address@hidden> wrote:

> when trying to recover a very important backup (ntfsclone sparse
> file), I had to notice that tar (1.15.1) had trouble to extract
> that file.
> This archive was created with tar (1.1[45].x ?) about a month ago
> with "tar -cjSf jake.tar.bz2 jake.ntfs", compressing the 6GB ntfs
> sparse image into a 1.6GB tar.bz2 file.
> All attempts to recover this 6GB sparse file have failed so far
> (either sparsed or zero-filled). So, I did some research on the
> list and found several issues with equal or similar cases. However,
> they all (?) should have been fixed in cvs already.

 Did you try to unpack the archive using star?


Well, unfortunately more problems with that:

$ star xvjf jake.ntfs.tar.bz2
x jake_winxp.ntfs 6292304384 bytes, 6162300 tape blocks
Segmentation fault

Extract the file up to 4335726080 bytes and then throws SEGFAULT.

That's with star: star 1.5a67 (i686-pc-linux-gnu).

I tried to compile the latest version (5a74) myself , but that fails with
/usr/src/linux/include/linux/percpu.h: In function '__alloc_percpu':
/usr/src/linux/include/linux/percpu.h:45: error: 'GFP_KERNEL' undeclared
(first use in this function)
/usr/src/linux/include/linux/percpu.h:45: error: (Each undeclared
identifier is reported only once
/usr/src/linux/include/linux/percpu.h:45: error: for each function it
appears in.)
/usr/src/linux/include/linux/percpu.h:45: warning: initialization makes
pointer from integer without a cast
/usr/src/linux/include/linux/percpu.h:47: warning: incompatible implicit
declaration of built-in function 'memset'
during compile (using linux kernel headers 2.6.15/16).

Any more hints?


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