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- From: olson@anchor.esd.sgi.com (Dave Olson)
- Newsgroups: comp.sys.sgi,comp.sys.sgi.admin
- Subject: Re: Help! Can I recover screwed up tar archive?
- Message-ID: <uma6rgk@zuni.esd.sgi.com>
- Date: 10 Jan 93 02:34:31 GMT
- References: <C0Jq7o.Hqz@news.cso.uiuc.edu> <ul1kfs4@zuni.esd.sgi.com> <GREENDOG.93Jan9162347@insti.physics.sunysb.edu>
- Sender: news@zuni.esd.sgi.com (Net News)
- Organization: Silicon Graphics, Inc. Mountain View, CA
- Lines: 24
-
- In <GREENDOG.93Jan9162347@insti.physics.sunysb.edu> greendog@insti.physics.sunysb.edu (Michael D. Fischer) writes:
-
-
- | | I need to extract information, if possible, from a tape which tar reads as
- | | having a 'directory checksum error'. Is there a way to trick tar into reading
- | | a tape screwed up in this particular way?
- |
- | Like Dave said, it's probably byte swapped. If not, try getting the
- | following from ftp.uu.net:
- |
- | > usenet/comp.sources.unix/volume7/tar_aids.Z
- |
- | There are two programs, one which will go through a corrupted tar file
- | looking for valid file headers (listing them) and other which will
- | extract them.
-
- 'tar et' or 'tar ex' will already do this under IRIX. Unlike the standard
- tar, on IRIX the 'e' option continues looking until it gets a read error or
- EOT (0 length read), it doesn't stop when it sees a block of 0's (tar's
- internal end of archive marker).
- --
- Let no one tell me that silence gives consent, | Dave Olson
- because whoever is silent dissents. | Silicon Graphics, Inc.
- Maria Isabel Barreno | olson@sgi.com
-