mount.md

Synopsis

mount -t type device mount_point

mount writes what it has done to /etc/mtab (unless using -n), thus the contents of this file are very similar to the output of mount without options.

CD/DVD mounting

1. mount -t iso9660 -o ro /dev/cdrom /mnt
2. mount -t iso9660 -o loop,ro matlab.iso /media/cdrom0 A loop device in Linux is an abstraction that lets you treat a file (our iso image which is not an actual CD) like a block device

/etc/fstab

mount /mydata looks in /etc/fstab (first for mount points then for devices)

#                                           0 for swap/remote
#                                           1 for /
#                                           2 otherwise
# <device> <mount> <type> <options> <dump> <fsck>
# UUID=... /home   ext4   rw...     0      2

View all mounted partitions of specific type

mount -l -t ext4

Bind mount points to a new directory (like a temporary symlink)

mount -B /mydata /mnt # or --bind

move a mount point

mount -M /mydata /mnt/ # or --move

Remount the mounted filesystem (in order to change some options)

mount -o remount,rw /mydata

Lazy unmount of a filesystem (after disk operations are done)

umount /mydata -l

List filesystems

• findmnt
• mount

See if a directory or file is a mountpoint

mountpoint directory|file