FSTAB

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 First mention a comment that an install time it pointed at a named thing, i.e. mpatha, VG name + LV name, Cryptsetup name, raid md0, device name hda2.
 Then fstab line is specific one in the following order of preferences.

FSTAB

This document will describe fstab stanzas for different filesystems and partitions as standardized in Ubuntu across various things that parse/create/install/consume fstab entries.

device specification

  • First mention a comment that an install time it pointed at a named thing, i.e. mpatha, VG name + LV name, Cryptsetup name, raid md0, device name hda2. Then fstab line is specific one in the following order of preferences.
  • By-id with uuid
    1. Linux RAID /dev/disk/by-id/md-uuid-2df6ae19:d2b8f232:a92a12e1:ff5884f0-part1

    2. LVM /dev/disk/by-id/dm-uuid-LVM-AW4vtN9Nuh503yw4izneqpuLXCui4dVmXUcfJlf355pxKjolkkDmXJhPuJHZmZhI

    3. Multipath /dev/disk/by-id/dm-uuid-part1-mpath-35000c50015ea71ad

    4. LUKS1 /dev/disk/by-id/dm-uuid-CRYPT-LUKS1-85cd9f053c264a9b919a6cf780818425-foobar

    5. LUKS2 /dev/disk/by-id/dm-uuid-CRYPT-LUKS2-85cd9f053c264a9b919a6cf780818425-foobar

  • By-UUID
    1. ext4 /dev/disk/by-uuid/9958d086-4f20-4807-8976-58807a5bc7e0

  • By-partuuid
    1. GPT partition /dev/disk/by-partuuid/1de9150c-fbdf-45a1-9c85-930a9bbb6188

  • By-device name
    1. /dev/hda2

fs default options

  1. any: discard
  2. rootfs: ext4 discard,errors=remount-ro 0 1
  3. /boot: ext4 discard,noatime,nodiratime 0 2
  4. /boot/efi: vfat umask=0077 0 1

bootloader specification

Examples

FSTAB (last edited 2020-01-23 09:27:47 by xnox)