Re: Looking for a backup to CD-R(W) program
On Mon, 25 Nov 2002 20:08:53 -0500 (EST)
joe@nahmias.net (Joe Nahmias) wrote:
> Chris,
>
> Correct me if I'm wrong, but I thought Linus himself said that using
> dump on live (mounted) filesystems was a bad idea. I'll see if I can
> dig up a reference to it...
>
> Thanks for your help!
> Joe
>
> > Chris Lale wrote:
> > > Incremental daily backup:
> > > dump -3u -z -M -B 650000 -f /bkp/home/monday.dump /home
> >
> > Whoops! that should be -9 not -3:
> > dump -9u -z -M -B 650000 -f /bkp/home/daily.dump /home
> >
>From the top of the "cdbackup" man page:
DESCRIPTION
cdbackup is a utility to make streaming backups to CD-R(W)
disks. It's designed to work with any backup tool which writes the
backup to stdout (like tar/cpio/afio).
NOTE: this program REQUIRES that a recent version of cdrecord(1)
is present in the PATH.
WARNING! When using this program under Linux, be sure not to use
dump on a mounted filesystem. This has a high potential for creating
corrupted backups. As of kernel version 2.4.19, this has
not been fixed and it may not be fixed at all. You can read Linus
statement about this at
<http://search.alphanet.ch/cgi-bin/search.cgi?max_results=10&type=long&;
msgid=Pine.LNX.4.21.0104270953280.2067-100000@penguin.trans-meta.com&do
main=ml-linux-kernel>
G
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