I see this from "http://man7.org/linux/man-pages/man2/mount.2.html":
Values for the filesystemtype argument supported by the kernel are
listed in /proc/filesystems (e.g., "btrfs", "ext4", "jfs", "xfs",
"vfat", "fuse", "tmpfs", "cgroup", "proc", "mqueue", "nfs", "cifs",
"iso9660"). Further types may become available when the appropriate
modules are loaded.
A text listing of the filesystems which were compiled into the kernel.
Incidentally, this is used by mount(1) to cycle through different filesystems when none is specified.
The "nodev" string in the first column means that filesystem does not require a block device to be mounted, it's so called virtual filesystem.
Example output:
nodev sysfs
nodev rootfs
nodev bdev
nodev proc
nodev cpuset
nodev debugfs
nodev sockfs
nodev pipefs
nodev futexfs
nodev tmpfs
nodev inotifyfs
nodev eventpollfs
nodev configfs
nodev devpts
ext3
nodev ramfs
nodev hugetlbfs
vfat
iso9660
nodev fuse
fuseblk
nodev fusectl
udf
nodev nfs
nodev nfs4
yaffs
yaffs2
nodev mqueue
nodev kvmfs
nodev oprofilefs
from:http://www.linuxinsight.com/proc_filesystems.html
