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> Tar and weak compression, tar -cvjf
post May 25 2014, 09:03 PM
Post #1

Whats this Lie-nix Thing?

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I have been using tar for quite a while but not for any Dir backups. Now I am trying to back up a Dir full of instrustional videos with tar -cvjf and the tarball I get back is the same size as the Dir without compression. Even if I omit the -j compression type the archive is the same size....Is this normal behavior for a dir full of mp4 files? Also (and I know tar may not be the best for backups ) but I was warned about using bz2 compression because "if the archive gets currupt anywhere in the archive I will not be able to open the archive from the point of corruption; However with regular tar compression I could save most of the archive except the block that is currupt "...Is this correct?

Thankyou for any input smile.gif

I did find this:
You can use the `bzip2recover' program to attempt to recover
data from undamaged sections of corrupted files.

so that answers the bz2 question but the man seemed pretty concerned about using this function on a tape drive...
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