[wellylug] CD Backup util ?

[Wood Brent]

--- Ilia Pavlenko <ip at globe.net.nz> wrote:
> Greetings.
> 
> What would you suggest for a backup utility that can dump linux system
> with lots of junk (10 gig) onto set of CD-R's, without much hassle, and
> preferrably "live" (without booting into single-user etc...)
> 

I don't know of an elegant solution.

One relatively straightforward approach, if you have the disk space:

dump the contents of each partition into a single large file.
bzip2 the file (more than one if you have >1 partition)
use a file splitter to split the large files into 640/700Mb chunks
write each chunk to CD


A restore would require a bit of work & depend on how you did the
dump/compress, etc. I'm sure there are others out there who would know more
about copying files which are in use, which may be a problem. There are a few
different ways of doing each step that I'm aware of, some lend themselves to
restores more easily than others.

Given that tapes & CDs are both one long stream of data, I would imagine a tape
backup utility could be adapted to write to multiple CD's instead of multiple
tapes (esp with a SCSI CDRW). I don't know if this has been done, & 'tis WAY
beyond my programming skills :-) It would also be easier with a CDRW loader 


Cheers


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