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Old 10-20-2003, 02:58 AM   #1
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Registered: Oct 2003
Location: Tokyo
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Unhappy Large tar file taking huge disk space in ext3 file system


I am trying to backup some of my data by tarring in to another hard drive (I am in fact compressing them using bzip2 later -- but that's not relevent to this question).

My original directory tree has taken (du -sk <directory>) about 1.9GB. So, I was surprised to see that the tar file has taken 3.3GB.

Command used was find <source directory> |tar -cv <tar file> -T -

Since this is a small part of a Huge backup program, if things behave this way, I am going to be in trouble.

Can somebody help me to figure out what is happening.

Thanks in advance
Old 10-20-2003, 04:38 AM   #2
Registered: Jun 2003
Location: Reading, UK
Distribution: Debian 3.0, LFS
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The only thing I could think of it that you've got a core file somewhere, that hasn't been noticed for whatever reason. Try searching for a file named "core" (find / -name core) they're usually massive (about 1.5GB) and they can safely be deleted.
Otherwise that is very strange.
Old 10-20-2003, 08:45 AM   #3
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Try a much simpler command such as:
tar zcvf /path/to/backup.tgz /directory/to/backup


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