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GNU Tar --listed-incremental is backing up dir structure every time
From: |
Jason Donald |
Subject: |
GNU Tar --listed-incremental is backing up dir structure every time |
Date: |
Thu, 29 May 2003 11:58:04 +1000 |
Hi,
1) I am using GNU tar with the --listed-incremental option.
2) Each day I use it to write a new tar file (dated using a unix
timestamp), using the snapshot file.
3) Each day it backs up a copy of new files into the new tar file
(Great!)
4) Each day it also backs up a blank copy of *every* directory (just
the directory name, not any files!) into the new tar file.
As I am backing up a root filesystem, there are thousands of
directories, and they are bloating the daily tar files.
Eg:
tar --list --bzip2 --file=www_archive_20030530_1054216915.tar.bz2
www/wwwarplus/
www/wwwarplus/cgi-bin/
www/wwwarplus/cgi-bin/arplus/
www/wwwarplus/cgi-bin/arplus/MIME/
www/wwwarplus/cgi-bin/arplus/data/
www/wwwarplus/htdocs/
www/wwwarplus/htdocs/arplus/
www/wwwarplus/htdocs/arplus/help/
www/wwwarplus/htdocs/arplus/images/
www/wwwarplus/htdocs/arplus/styles/
www/bb/bb.html
www/bb/bb2.html
www/bb/index.html
Every day, thousands of empty directories are included in the daily
archive, when they were there in the first place, they got backed up
in the first backup, and that should have been recorded in the
snapshot file.
I must be doing something wrong, because I doubt Tar would be backing
up all those "directory names" each time for no good reason.
Thank you in advance for any advice you can offer!
Jason
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