[SLUG] large files on DVD

From: Eben King (eben1@tampabay.rr.com)
Date: Thu Dec 02 2004 - 03:28:10 EST


So I back up the installation of that Other OS by basically creating a
partition image and compressing it with bzip2 (note: bzip2's output is
less than 2% smaller than gzip's, but it takes MUCH longer to create). A
13 GB partition compressed to 8G. I split into two chunks, each slightly
smaller than a DVD. Then I find out the hard way that isofs can't handle
files >2GB. Duh; I knew that. A little "split" action later, and I have:

DVD 1:
2.0G hda1.bz2.1 2.0G hda1.bz2.2 106M hda1.bz2.3

DVD2:
2.0G hda1.bz2.4 1.9G hda1.bz2.5

I used 'mkisofs -iso-level 3 -J -l -pad -R -o /mnt/temp/backup-1.iso .' to
create the ISOs:

4.2G /mnt/temp/backup-1.iso 3.9G /mnt/temp/backup-2.iso

Burning seems to go as usual. But, when I look at the result:

[eben@pc backup-1]$ ls /mnt/dvd2
total 0
   0 ?????????????????????????????????????????????????????/

But the ISO has the correct names:

[root@pc root]# mount /mnt/temp/backup-1.iso /dvd2b/test -o loop,ro
hda1.bz2.1 hda1.bz2.2 hda1.bz2.3

everything looks OK. Reading works:

[root@pc root]# sum /scratch/backup-1/hda1.bz2.3 /dvd2b/test/hda1.bz2.3
26826 108544 /scratch/backup-1/hda1.bz2.3
26826 108544 /dvd2b/test/hda1.bz2.3

What could be the problem here? /scratch and /mnt/temp are both reiserfs

-- 
-eben    ebQenW1@EtaRmpTabYayU.rIr.OcoPm    home.tampabay.rr.com/hactar
              
           This message was created using recycled electrons.

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