# man > fs(5)

---
type: CommandReference
command: filesystems
mode: man
section: 5
source: man-pages
---

## Quick Reference

- `cat /proc/filesystems` — list filesystems supported by the current kernel
- `mount -t <type> <device> <mountpoint>` — mount a filesystem of the given type
- Key filesystem types:
  - `ext4` — journaling, large volume/file/directory limits, performance enhancements over ext3
  - `ext3` — journaling version of ext2, easy to switch between ext2/ext3
  - `ext2` — high-performance disk filesystem, successor to ext
  - `xfs` — journaling filesystem developed by SGI (integrated in 2.4.20)
  - `tmpfs` — filesystem in virtual memory (RAM), extremely fast access
  - `nfs` — network filesystem for remote disk access
  - `proc` — pseudo-filesystem interface to kernel data structures
  - `iso9660` — CD-ROM filesystem (ISO 9660 standard), supports Rock Ridge extensions

## Name

Linux filesystem types: ext, ext2, ext3, ext4, hpfs, iso9660, JFS, minix, msdos, ncpfs, nfs, ntfs, proc, Reiserfs, smb, sysv, umsdos, vfat, XFS, xiafs

## Synopsis

To see which filesystems your kernel currently supports, read the mounted proc filesystem:

shell
cat /proc/filesystems
To mount a filesystem, use the `mount` command (see `mount(8)` and `mount(2)`).

## Examples

List supported filesystems:

shell
$ cat /proc/filesystems
nodev   sysfs
nodev   tmpfs
nodev   bdev
nodev   proc
nodev   cgroup
nodev   cgroup2
nodev   cpuset
nodev   devtmpfs
nodev   configfs
nodev   debugfs
nodev   tracefs
nodev   securityfs
nodev   sockfs
nodev   bpf
nodev   pipefs
nodev   ramfs
nodev   hugetlbfs
nodev   devpts
        ext3
        ext2
        ext4
        squashfs
        vfat
        msdos
        iso9660
        ntfs
        xfs
        btrfs
        ...
Mount an ext4 filesystem:

shell
mount -t ext4 /dev/sda1 /mnt
## See Also

- [fuse(4)](https://www.chedong.com/phpMan.php/man/fuse/4/markdown)
- [btrfs(5)](https://www.chedong.com/phpMan.php/man/btrfs/5/markdown)
- [ext2(5)](https://www.chedong.com/phpMan.php/man/ext2/5/markdown)
- [ext3(5)](https://www.chedong.com/phpMan.php/man/ext3/5/markdown)
- [ext4(5)](https://www.chedong.com/phpMan.php/man/ext4/5/markdown)
- [nfs(5)](https://www.chedong.com/phpMan.php/man/nfs/5/markdown)
- [proc(5)](https://www.chedong.com/phpMan.php/man/proc/5/markdown)
- [sysfs(5)](https://www.chedong.com/phpMan.php/man/sysfs/5/markdown)
- [tmpfs(5)](https://www.chedong.com/phpMan.php/man/tmpfs/5/markdown)
- [xfs(5)](https://www.chedong.com/phpMan.php/man/xfs/5/markdown)
- [fsck(8)](https://www.chedong.com/phpMan.php/man/fsck/8/markdown)
- [mkfs(8)](https://www.chedong.com/phpMan.php/man/mkfs/8/markdown)
- [mount(8)](https://www.chedong.com/phpMan.php/man/mount/8/markdown)