Here is a table that summarizes the differences between partimage and fsarchiver:

Description

fsarchiver

partimage

Ability to save/restore standard linux filesystems (ext2, ext3, reiserfs, xfs, jfs)

yes

yes

Ability to save/restore new generation linux filesystems (ext4, reiser4, btrfs)

Yes

No

Ability to save/restore windows ntfs filesystems

Yes (experimental)

Yes (experimental)

Requires kernel support for the filesystem to work (or ntfs3g for ntfs)

Yes

No

Ability to restore the filesystem to a partition which is smaller than the original

Yes

No

Ability to restore the filesystem to a partition which is bigger than the original

Yes

Yes (requires resizefs)

Require the filesystem tools (mkfs, tunefs, …) to be installed to save the filesystem:

No

No

Require the filesystem tools (mkfs, tunefs, …) to be installed to restore the filesystem:

Yes

No

Checksumming of the data and ability to restore corrupt archives

Yes

No

Compression algorithms which are supported

lzo, gzip, bzip2, lzma/xz

gzip, bzip2

Ability to do multi-threaded compression which is faster on recent computer with multiple cores/cpu

Yes

No

Ability to encrypt the data with a password

Yes

No

Information taken into account to save the filesystem:

Files

Blocks

User interface that comes with the program by default:

Text

Semi-graphical