mount

Usage: mount [OPTION]...

		   or: mount [OPTION]... DEVICE DIRECTORY
		

Mount filesystems.

Options:

			-a	Mount all filesystems in /etc/fstab
			-o	One of the many filesystem options listed below
			-r	Mount the filesystem read-only
			-t TYPE	Specify the filesystem type
			-w	Mount the filesystem read-write
		

Options for use with the -o flag:

			async/sync	Writes are asynchronous / synchronous
			atime/noatime	Enable / disable updates to inode access times
			dev/nodev	Allow / disallow use of special device files
			exec/noexec	Allow / disallow use of executable files
			loop		Mount a file via loop device
			suid/nosuid	Allow / disallow set-user-id-root programs
			remount		Remount a currently mounted filesystem
			ro/rw		Mount filesystem read-only / read-write
		

There are even more flags that are filesystem specific. You'll have to see the written documentation for those.

Example:

			$ mount
			/dev/hda3 on / type minix (rw)
			proc on /proc type proc (rw)
			devpts on /dev/pts type devpts (rw)
			$ mount /dev/fd0 /mnt -t msdos -o ro
			$ mount /tmp/diskimage /opt -t ext2 -o loop