最後更新: 2023-03-06

目錄

• fstab format
• 通用 Options
• mount 時的 delay
• mount by Device/Label/UUID

fstab format

# <device>  <mount point>  <type>  <options>  <dump>  <fsck>

device: 可以用 label, uuid, path 去表達

fsck: To determine the order in which filesystem checks are done at boot time
        The root filesystem 1, Other filesystems 2.
        (Defaults to zero (don’t check the filesystem))

通用 Options

defaults

default options: rw, suid, dev, exec, auto, nouser, and async

exec / noexec

Permit/Prevent the execution of binaries from the filesystem.

suid/nosuid

Permit/Block the operation of suid, and sgid bits.

noauto

do not mount when "mount -a" is given (e.g., at boot time)

relatime

updates the access time only if the previous access time was earlier than the current modify or change time.

In addition, since Linux 2.6.30, the access time is always updated if the previous access time was more than 24 hours old.

mount 時的 delay

nofail

當 Device 不存在時, 依然 boot 入系統 (ignored if absent)

P.S. 設定等待 Device 的時間

# Defaul: 90s
x-systemd.device-timeout=15s

nobootwait

which can be applied to non-remote filesystems to explicitly instruct mountall(8) not to hold up the boot for them

_netdev

The filesystem resides on a device that requires network access

used to prevent the system from attempting to mount these filesystems

until the network has been enabled on the system

mount by Device/Label/UUID

By Label

LABEL=NAME     /media/usb  xfs noatime 0 0

By UUID

UUID=x-x-x-x-x /media/usb  xfs noatime 0 0

另見

• mount