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Old 01-23-2009, 12:30 PM   #1
brianpbarnes
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Registered: Dec 2005
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MondoArchive compresses 4.7GB directory to 40GB?


Hi,
Before upgrading from Ubuntu 8.04 to 8.10, I wanted to backup every scrap of data in my /home/brianp directory. `du -sh /home/brianp` shows 6.4 GB. Nautilus ->right_click(/home/brianp) ->properties shows 4.7 GB. Mondoarchive given /home/brianp to backup with no NTFS creates a gigantic 40 GB .iso file with max compression. How big is my home directory?

I wrote a Perl script to look at every directory found with a `ls -al /home/brianp` and execute a `du -bs /home/brianp/$dir`;. It found a total of 19.1 GB.

I have links which point to large drive subsystems and I verified that they are not being considered at all. I mounted the ISO image with Gmount-iso and discovered a file called filelist.full.gz. Decompressing it, I find only a directory reference to these links with zero files included.

A 40 GB, maximally compressed, Mondo iso should expand out to roughly 80 GB of data. I can only account for 1/4 of this amount of data.

4.7 GB Nautilus properties
6.4 GB du -sh ~brianp
19 GB sum of du -sb of each directory (even hidden dot dirs)
40 GB Mondo compressed ISO image.

How is Mondo finding 8.5 times as much data as Nautilus sees?

Puzzled,

BrianP
 
  


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