Plenty. There are/were two linux programs that are similar to Ghost for Windows. Strangely they are called Ghost for Linux and Ghost for Unix.
There is the built in tar and gz programs and similar archiving tools in every linux distro.
If using KDE you may want to try kdar, which uses dar to backup in various sizes eg: CD, DVD DS-DVD etc. I worked out what I wanted to do and just run a script to do the backup to DVD 4G size files.
Some distros like SuSE have their own backup software, but I found I had to copy the backup to the hard drive and then restore.
dd can make an exact replica of a hard drive onto another hard drive or USB drive.
Hopes this helps