/usr/lib/debug/sbin/badblocks
/usr/lib/debug/sbin/debugfs
/usr/lib/debug/sbin/dumpe2fs
/usr/lib/debug/sbin/e2fsck
/usr/lib/debug/sbin/e2fsck.static
/usr/lib/debug/sbin/e2image
/usr/lib/debug/sbin/e2undo
/usr/lib/debug/sbin/logsave
/usr/lib/debug/sbin/mke2fs
/usr/lib/debug/sbin/resize2fs
/usr/lib/debug/sbin/tune2fs
/usr/lib/debug/usr/sbin/e2freefrag
/usr/lib/debug/usr/sbin/e4defrag
/usr/lib/debug/usr/sbin/filefrag
/usr/lib/debug/usr/sbin/mklost+found
You may install this package on Debian with
apt-get
install e2fsprogs-dbg