My Ubuntu desktop hard drive is failing, it is taking all day to copy it to a new 500 GB drive I just bought. Don't know if it will work to just "dd" the disks to make an exact copy. No errors yet, just extremely slow. If it works, I will be happily testing the new hard drive. CloneZilla didn't work at all for me. I tried the stable and latest versions, the latest version wouldn't run and the stable version gave nothing but functionality errors.
Only a few hours of sleep again, this is very bad for me.
Update: "sudo dd if=/dev/sda of=/dev/sdb" worked perfectly to clone and replace the hard drive! I am back in the Linux business!