# cat /proc/filesystems
nodev   sysfs
nodev   rootfs
nodev   bdev
nodev   proc
nodev   sockfs
nodev   pipefs
nodev   anon_inodefs
nodev   futexfs
nodev   tmpfs
nodev   devpts
        ext2
nodev   ramfs
        msdos
        vfat
nodev   jffs2