fstab

(Modified 2024 Jul 19)

Disk mounts using fstab

Suppose I have two hard drives in my Ubuntu machine, one with the OS and one with data. Automatically mounting the second drive took a bit of fiddling.

Instructions:

• • Get partition name for appropriate disk:

    • sudo fdisk -l

  • Get volume ID (for, say, /dev/sdb2):

    • blkid /dev/sdb2  # without any arguments will list all devices

    • Alternatively, you can list disk contents by UUID (source): ls -l /dev/disk/by-uuid/

    • In the past, there used to be a command: vol_id -u /dev/sdb2

  • Go to /etc and copy fstab to a backup filename.

  • Add the following lines to fstab:

    • # UUID=1abcd234-5678-9112-e345-6fg7hi892123 /data           ext4    defaults,errors=remount-ro 0       2

  • where the syntax for the columns is:

    • # <UUID>                                    <mount_point>  <type>   <options>                  <dump>  <pass>

    • The <pass> column sets in what order fs check is executed, where 0 signifies unchecked.

This page is Lynx-enhanced