I may not have saved a backup properly to enable me to restore this, if I've lost the backup I can survive, but maybe I'm overlooking something obvious.
I am new to Linux and installed Mandriva without too much difficulty. I then managed to configure this to act as a Windows domain controller, added user accounts, set up shared directories, printers and so on. All in all quite a success given my limited experience.
I took a backup to CDROM using Mandriva's backup wizard. This left me with a bunch of files on the CD as follows:
At this point I decided to completely re-install Mandriva with a bigger hard drive, believing that I had secured the previous configuration.
After installing Mandriva on the new drive I fired up the restore wizard and pointed it at the CD I had saved earlier. Surprisingly (to me), it didn't seem to like the contents of that CD - it was like it didn't understand the file layout.
Using RAR on my Windows PC I was able to open and review the tar.gz files no problem, so the CD itself hasn't got any problems with respect to its readability - it is just that I've got a bunch of compressed files which contain configuration data (e.g. smb.conf is in there), but no utility to restore these back onto a new Linux system.
No big deal if I've lost this backup, and I still have the original (smaller) hard disk if shove comes to push. But I'm interested to know whether I have a bunch of files on the CD which can be used to restore a previous configuration.