If you cannot boot your system any longer, the first thing you need to get is a Bootdisk--set. This is something you should have prepared just after installing your system. In case that your main LINUX partitions are no longer accessible, not even from a boot disk, you need to recreate them and then you can use KBACKUP to restore your data onto them. As soon as the KBACKUP --Rescue--Disk is available, you can use this one to boot and do all this. Until then it is probably easiest to reinstall a minimal LINUX system, install KBACKUP on this new system and then use it to restore your files. Fitting KBACKUP on a root--disk proves to be tricky, but I expect to release the Rescue--Disk soon.