525950 – Unable to decompress all bz2 installed by portage

Bug 525950 - Unable to decompress all bz2 installed by portage

Summary: Unable to decompress all bz2 installed by portage

Status:	RESOLVED INVALID

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	[OLD] Core system (show other bugs)
Hardware:	All Linux

Importance:	Normal normal (vote)
Assignee:	Gentoo Linux bug wranglers

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Depends on:
Blocks:

Reported:	2014-10-20 08:06 UTC by Agostino Sarubbo
Modified:	2014-10-20 08:40 UTC (History)
CC List:	1 user (show)

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Runtime testing required:	---

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Description Agostino Sarubbo gentoo-dev

2014-10-20 08:06:55 UTC

While I'm trying to decompress some bz2 installed from portage:

ago@willoughby ~ $ file /usr/share/doc/ntp-4.2.6_p5-r10/README.bz2
/usr/share/doc/ntp-4.2.6_p5-r10/README.bz2: bzip2 compressed data, block size = 900k

ago@willoughby ~ $ tar xjf /usr/share/doc/ntp-4.2.6_p5-r10/README.bz2 -C /tmp/
tar: This does not look like a tar archive
tar: Skipping to next header
tar: Exiting with failure status due to previous errors

When I try to do it with another bz2 archive (it works):

ago@willoughby ~ $ file /usr/portage/distfiles/akonadi-1.12.1.tar.bz2
/usr/portage/distfiles/akonadi-1.12.1.tar.bz2: bzip2 compressed data, block size = 900k
ago@willoughby ~ $ tar xjf /usr/portage/distfiles/akonadi-1.12.1.tar.bz2 -C /tmp/
ago@willoughby ~ $ 


So, file confirms that the archives are the same, but tar is  unable to decompress the bz2 installed by portage. Is it a bug or I am missing something?

Comment 1 Zac Medico gentoo-dev

2014-10-20 08:14:36 UTC

(In reply to Agostino Sarubbo from comment #0)
> While I'm trying to decompress some bz2 installed from portage:
> 
> ago@willoughby ~ $ file /usr/share/doc/ntp-4.2.6_p5-r10/README.bz2
> /usr/share/doc/ntp-4.2.6_p5-r10/README.bz2: bzip2 compressed data, block
> size = 900k
> 
> ago@willoughby ~ $ tar xjf /usr/share/doc/ntp-4.2.6_p5-r10/README.bz2 -C
> /tmp/
> tar: This does not look like a tar archive
> tar: Skipping to next header
> tar: Exiting with failure status due to previous errors

You should use bzcat instead, because it's not a tar file.

Comment 2 Jeroen Roovers (RETIRED) gentoo-dev

2014-10-20 08:40:37 UTC

tar doesn't unpack things that are not tar archives.