mount(8)

List supported filesystems

If the kernel is compiled with CONFIG_PROC_FS one can list the supported filesystems via the following procfs node.

cat /proc/filesystems

Mount options

The mount operation allows to specify additional mout options.

• The mount(8) manpage provides some generic options under FILESYSTEM-INDEPENDENT MOUNT OPTIONS as well as some filesystem specific options under FILESYSTEM-SPECIFIC MOUNT OPTIONS.
• The manpage for the specific filesystems list additional mount options, as for example tmpfs(5).

Example: Mount tmpfs with given user id

This creates a in memory filesystems with a size limit where the root folder is owned by uid=gid=1000.

sudo mount -t tmpfs -o size=1G,uid=1000,gid=1000,mode=0755 none ./tmp

Example: Bind mount

# Bind mount src onto dir, this does not rebind and recursive mountpoints.
mount --bind <src> <dst>
# Similar but rebind also recursive mountpoints.
mount --rbind <src> <dst>

# Mount file ./resolv.conf onto /etc/resolv.conf.
mount --bind ./resolv.conf /etc/resolv.conf
# Mount dir ./etc onto /etc.
mount --bind ./etc /etc