Subject: Re: backup to CD
To: Geert Hendrickx , Rhialto <>
From: Rhialto <>
List: tech-pkg
Date: 11/22/2005 18:36:15
On Tue 22 Nov 2005 at 17:18:43 +0100, Geert Hendrickx wrote:
> On Tue, Nov 22, 2005 at 05:10:04PM +0100, Rhialto wrote:
> > As for backups, so far I have done it a bit simplistically and used
> > dump(8) to stdout, piped to growisofs in image mode. This has a big
> > disadvantage that you can put only one dump on a DVD+R(W).
> But why do you want your dumpfile in an ISO filesystem?

I don't get them in an ISO filesystem, I get them raw on the dvd.

> You can just burn
> one or multiple raw dumpfiles to the CD or DVD, creating a multi-session
> CD, which you can read using mscdlabel(8).  

Does that also work with +RW disks? I got the impression that +RW
doesn't do sessions, because it doesn't need to do them to add files,
since it can selectively overwrite sectors to put everything into a
single "session". Or at least, that is what I distilled from lots of
vague and partly conflicting information.

Since I use +RW disks, it isn't that bad that they aren't full. I will
re-use them anyway after some time. It'd be nice though to have a
solution for the opposite problem: if a dump doesn't fit on a single

> 	Geert
___ Olaf 'Rhialto' Seibert      -- You author it, and I'll reader it.
\X/ rhialto/at/        -- Cetero censeo "authored" delendum esse.