ext2 filesystem libraries - headers and static libraries The ext2fs and e2p libraries are used by programs that directly access EXT2 filesystems from usermode programs. The EXT2 filesystem is very often used as the default filesystem on Linux systems. Various system programs that use libext2fs include e2fsck, mke2fs, tune2fs, etc. Programs that use libe2p include dumpe2fs, chattr, and lsattr. This package contains the development environment for the ext2fs and e2p libraries.