I keep getting an error during the backup of my 250GB internal drive to a 32GB USB Flash drive suggesting there is not enough space to complete the backup. There are 2 partitions - 1:20GB 2:226GB - and I am backing up the entire disk for recovery purposes. My question is does the backup drive have to be as large as the target drive? I've read this to be true but recall backing up on another Linux box with a 300GB internal drive to one of my 32GB Flash drives and got several backups accomplished.

This situation leads me to believe that maybe I was only backing up the 20GB partition rather than the entire drive but that would go against my general backup procedures for any system and I think I may be remembering incorrectly.

13.1 KDE 32-bit machine (both the laptop and the desktop). Any suggestions? Thanks!