Best way to back up to CD?

Louis LeBlanc FreeBSD at
Mon Jan 3 14:38:54 PST 2005

On 01/03/05 01:31 PM, Tabor Kelly sat at the `puter and typed:
> Hello,
> I would like to start making periodic backups to CD. I know I can make a 
> tarball, and then create an iso with just that tarball on it, and then 
> burn that to a cd, but is there a better way?
> Specifically, I have read the into to backups in the Handbook and it 
> says that dump/restore is superior to tar, but it looks like dump was 
> only intended for tape drives. Am I reading this right?

By tape drive, the docs mean pretty much any device, including (in
this case) a flat file.

Check dump(8), particularly the -f parameter.

>From there, the dump file can be poured into a .iso image and burned
to a CD or DVD.  Automagically, if you're diligent about keeping
blanks in your drive.

There were some scripts for automating some of this process floating
around once upon a time, I'd sure like to see something like this
again - particularly written in perl.  If they don't show up in
response to this thread, maybe I'll hack some together myself.

I'm in the late stages of tweaking a new box out, and once I get
amavisd and clamav integrated with postfix, I'll probably be down to
the backup process myself.

Very timely thread from my POV :)

Louis LeBlanc               FreeBSD at
Fully Funded Hobbyist, KeySlapper Extrordinaire :)                     Ô¿Ô¬

The perversity of nature is nowhere better demonstrated by the fact
that, when exposed to the same atmosphere, bread becomes hard while
crackers become soft.

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