Personal blog home page (Click for more details) - https://blog.51cto.com/11495268
Personal Public Number (click on the link scan code concern oh) - https://blog.51cto.com/11495268/2401194
1 Introduction
Boot automatically mount very useful, especially when many turned from start service depends on certain data files; described herein, edit / etc / fstab boot from Kai
2、/etc/fstab
# cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda3 during installation
UUID=4dfee257-e6a1-41fb-b16a-1d93a7ebe0be / ext4 errors=remount-ro 0 1
# /boot was on /dev/sda1 during installation
UUID=9008bfed-4aa5-44d9-9a2d-58d4ffd0fcaf /boot ext4 defaults 0 2
# swap was on /dev/sda5 during installation
UUID=9255b841-8bde-4878-afe4-ad7e118f132b none swap sw 0 0
UUID=c87a3ad3-d319-4621-bf08-14013281bbe7 /mnt/learn_linux ext4 defaults 0 0
3. Detailed contents
# <file system> <mount point> <type> <options> <dump> <pass>
# 要挂载的设备或伪文件系统 挂载点 文件系统类型 挂载选项 转储频率 自检次序
3.1 device or a pseudo file system
Device files, LABEL (LABEL = "") , UUID (UUID = "")
pseudo file system name (proc, sysfs)
3.2 mount point
Specified folder
3.3 Mount options
defaults
3.4 Frequency dump
Using the automatic backup partition data dump command frequency
0: not backing
1: Dump day
2: Transfer every other day
3.5 self-test order
0: No Self-Test
1: First, the self-test
4, extension (difference / etc / fstab and / etc / mtab) of
Role 4.1 / etc / fstab file
Records the information on a computer hard disk partition, Linux boot time, check the partition of the fsck command and mount the partition mount command, you need the information in the fstab to mount the hard drive and check the correct
Role 4.2 / etc / mtab file
Whenever mount to mount the partition, umount unmount the partition will dynamically update mtab, mtab always maintained partition information for the current system mounted