Backing up to an external FAT32 disk

[Felipe Figueiredo]

On Thursday 12 July 2007 13:28:06 Derek Broughton wrote:
> Liam Proven wrote:
> 
> > I am trying to backup a 98% full RAID array (some 100GB of stuff) onto
> > a 400GB FAT32 USB2 external hard drive. I don't have space on the RAID
> > itself to create the archive, nor on my 3G root FS.
> ... 
> > Friends have suggested using tar with -FL and a call to mktemp to
> > split the archive into randomly-named 4G chunks, but then I can't see
> > how I'd restore it again; how will tar work out what the next volume
> > to examine is?
> ... 
> > I'm not wedded to using tar - I'd consider dump or something as well.
>  
> kdar, using 'dar', has a very neat ability to slice its output into any size
> you want.  It's intended for archiving to CD/DVD, but I don't see why it
> wouldn't work with a 400G drive.  Of course, it's a KDE app...

It's a great program. Unfortunately, unmaintained.

OTOH, the OP could just use dar, instead of the suggested solutions with tar.

Should be as simple as

dar -v -c usbdrive/raid -R raid/ -s 4G

If you need compression, include -z (gzip) or -y (bzip2).

dar(1) manpage is useful. You might want to take a look at options -P (to 
exclude Trash/cache dirs) and -D,  and possibly -K for encryption, should you 
use this for a backup solution.

regards
FF
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