[root@backup ~]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Thu Nov 15 15:45:38 2018
#
# Accessible filesystems, by reference, are maintained under ‘/dev/disk‘
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=d6d5b081-b823-4c7f-925f-60674dfe49c9 / ext4 defaults 1 1
UUID=84e4a3af-6ae4-45f8-af8f-bfa3e4abeeb9 /boot ext4 defaults 1 2
UUID=66f29bc0-b3ad-40db-84e8-809bb7bbcf12 swap swap defaults 0 0
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
/etc/fstab文件的每一行都遵循以下格式：
<device> <dir> <type> <options> <dump> <pass>
原文：https://www.cnblogs.com/justlikeit/p/10754943.html