dump archive of /home

Thufir Hawat hawat.thufir at gmail.com
Fri Mar 9 23:04:15 UTC 2012

How do I use the dump utility with an optical, in this case CD-RW, drive?
It's coming up as a read only file system.

thufir at tleilax:~$ 
thufir at tleilax:~$ sudo dump -f /dev/cdrw /home
  DUMP: Date of this level 0 dump: Fri Mar  9 15:01:49 2012
  DUMP: Dumping /dev/sdb1 (/ (dir home)) to /dev/cdrw
  DUMP: Label: none
  DUMP: Writing 10 Kilobyte records
  DUMP: mapping (Pass I) [regular files]
  DUMP: mapping (Pass II) [directories]
  DUMP: estimated 21299118 blocks.
  DUMP: Cannot open output "/dev/cdrw": Read-only file system
  DUMP: Do you want to retry the open?: ("yes" or "no") n
  DUMP: The ENTIRE dump is aborted.
thufir at tleilax:~$ 
thufir at tleilax:~$ 
thufir at tleilax:~$ df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sdb1              27G   25G  1.5G  95% /
none                  985M  248K  985M   1% /dev
none                  990M  2.8M  988M   1% /dev/shm
none                  990M  108K  990M   1% /var/run
none                  990M     0  990M   0% /var/lock
/dev/sda1              73G   68G  518M 100% /media/5f433b3d-1710-4426-
thufir at tleilax:~$ 



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