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Zero Length File at end of Tar Archive
From: |
Butler, Gerald |
Subject: |
Zero Length File at end of Tar Archive |
Date: |
Wed, 5 Dec 2001 10:42:35 -0500 |
Hello,
I seem to have located a minor glitch with GNU Tar. If the last file
on the archive is a zero-length file, Tar is unable to reliably see the file
upon extract.
For example, I am archiving a directory to an IDE tape on Linux with
the following command:
tar -cvf /dev/ht0 /home/sterling
This archive is approximately 120MB in length.
Then I am attempting to list the last member of the archive thusly:
tar -tvf /dev/ht0 -B -b 16384 home/sterling/last_backup
The 'last_backup' file is a zero length file that was touched just
prior to performing the backup. "tar" is reporting that the file is not found
in archive; however, if I
take the tape onto SCO Unix, the SCO version of "tar" sees the file
OK.
I performed a GOOGLE search to look for anything related to this
problem, and I was unable to locate any relevant reference.
When I ensure the "last_backup" file is NOT a zero-length file (e.g.
"echo `date` > last_backup" prior to creating archive), "Tar" reliably sees
the file at the end of
the archive consistently.
Thank You for your time,
Gerald E Butler
Programmer/Analyst - Sterling Jewelers Inc.
P.S. Thank You for the great Software. I admire the motivations of the
GNU project and the FSF.
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