[CentOS] Multiple incremental DVD backup program?

[Les Mikesell]

On Thu, Nov 1, 2012 at 9:15 AM, Keith Roberts <keith at karsites.net> wrote:
>>
>> I'm running C5.8 and want to backup a directory that is 6GB
>> in size.
>>
>> Is there any Linux program for Centos to make this backup
>> over 2 x 4.4GB DVD+R disks please?
>>
>> Something with a GUI like K3b would do nicely.
>
> OK I have found dar in EPEL
>
> http://en.wikipedia.org/wiki/DAR_%28Disk_Archiver%29
>
> and a gui for it called dargui
>
> http://dargui.sourceforge.net/
>
> I have downloaded the 0.7.0 linux version, and run the
> ./install.sh script, and it has installed itself on
> Centos 5.8 32bit and runs nicely.
>
> What would be handy is to be able to make my overnight
> directory backups into slices, so they are ready to burn to
> DVD's whenever I want to.
>

Assuming you have space to hold the temp copies, why don't you do
something like:
tar  -czf - dir  |split --bytes=4G /parth/to/prefix

Odds are good that a 6GB dir would compress to fit on on DVD anyway.

-- 
  Les Mikesell
     lesmikesell at gmail.com