System tools included
GNU Parted: creates, resizes, moves, copies partitions, and filesystems (and more).
GParted: GUI implementation using the GNU Parted library.
Partimage: popular opensource disk image software which works at the disk block level
ddrescue: Attempts to make a copy of a partition or floppy/Hard Disk/CD/DVD that has hardware errors, optionally filling corresponding bad spots in input with user defined pattern in the copy.
FSArchiver: flexible archiver that can be used as both system and data recovery software
File systems tools (for Linux and Windows filesystems): format, resize, and debug an existing partition of a hard disk
Ntfs3g: enables read/write access to MS Windows NTFS partitions.
sfdisk: saves / restores partition table (and more).
Test-disk: tool to check and undelete partition, supports reiserfs, ntfs, fat32, ext2/3 and many others
Memtest+: to test the memory of your computer (first thing to test when you have a crash or unexpected problems)
Rsync: very-efficient and reliable program that can be used for remote backups.
Network tools (Samba, NFS, ping, nslookup, ...): to backup your data across the network