to see the various filesystems that can be formatted by slax. Here's what that command shows for this Slack 13.37 I'm running at the moment ...
root@slack1337-32-amd64:~# ls -l /sbin/mkfs*
-rwxr-xr-x 1 root root 4888 Feb 16 2011 /sbin/mkfs*
-rwxr-xr-x 1 root root 10020 Feb 16 2011 /sbin/mkfs.bfs*
-rwxr-xr-x 1 root root 105360 Mar 29 2011 /sbin/mkfs.btrfs*
-rwxr-xr-x 1 root root 18076 Feb 16 2011 /sbin/mkfs.cramfs*
lrwxrwxrwx 1 root root 6 Mar 28 19:35 /sbin/mkfs.ext2 -> mke2fs*
lrwxrwxrwx 1 root root 6 Mar 28 19:35 /sbin/mkfs.ext3 -> mke2fs*
lrwxrwxrwx 1 root root 6 Mar 28 19:35 /sbin/mkfs.ext4 -> mke2fs*
lrwxrwxrwx 1 root root 6 Mar 28 19:35 /sbin/mkfs.ext4dev -> mke2fs*
lrwxrwxrwx 1 root root 8 Mar 28 19:35 /sbin/mkfs.jfs -> jfs_mkfs*
-rwxr-xr-x 1 root root 19208 Feb 16 2011 /sbin/mkfs.minix*
lrwxrwxrwx 1 root root 7 Mar 28 19:35 /sbin/mkfs.msdos -> mkdosfs*
lrwxrwxrwx 1 root root 16 Mar 28 19:35 /sbin/mkfs.ntfs -> /usr/sbin/mkntfs*
lrwxrwxrwx 1 root root 10 Mar 28 19:35 /sbin/mkfs.reiserfs -> mkreiserfs*
lrwxrwxrwx 1 root root 7 Mar 28 19:35 /sbin/mkfs.vfat -> mkdosfs*
-rwxr-xr-x 1 root root 264472 Mar 23 2011 /sbin/mkfs.xfs*
root@slack1337-32-amd64:~#
соответственно /mkfs.btrfs
еще есть
http://www.slax.org/modules.php?detail=kvpmи не нужно дублировать посты