Linux：开机硬盘自动挂载

查看Linux硬盘信息

只显示已挂载的磁盘

[root@ambari01 ~]# fdisk -l
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.

Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: gpt
Disk identifier: FA5D4CB9-C419-4DBE-AFBE-BFC942811628

#         Start          End    Size  Type            Name
 1         2048      2099199      1G  EFI System      EFI System Partition
 2      2099200     83884031     39G  Microsoft basic

Disk /dev/vdb: 1099.5 GB, 1099511627776 bytes, 2147483648 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x56cdb75b

   Device Boot      Start         End      Blocks   Id  System
/dev/vdb1            2048  1048578047   524288000   83  Linux
/dev/vdb2      1048578048  2097154047   524288000   83  Linux

Disk /dev/vdc: 42.9 GB, 42949672960 bytes, 83886080 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

查看磁盘分区UUID

[root@ambari01 ~]# blkid
/dev/vda1: UUID=”23B4-3A70″ TYPE=”vfat” PARTLABEL=”EFI System Partition” PARTUUID=”efac7f8d-85b1-48c1-babb-1bea174dbfce”
/dev/vda2: UUID=”ff97999c-00a4-4eeb-857c-90aac853140d” TYPE=”ext4″ PARTUUID=”033f0e3e-db0e-4d0a-8f98-ec8307912a5d”
/dev/vdb1: UUID=”1965a889-a9f4-4314-8f24-61049f63c14b” TYPE=”xfs”
/dev/vdb2: UUID=”7b0e65bc-4597-4ca1-b7db-b19f11c932a9″ TYPE=”ext2″
/dev/vdc: UUID=”13b2377e-13a4-464d-a854-9f55cc41a116″ TYPE=”ext4″

配置开机硬盘自动挂载

mount命令在服务器重启后会失效，所以需要将分区信息写入/etc/fstab，实现永久挂载：

[root@ambari01 ~]# cat /etc/fstab

#
# /etc/fstab
# Created by anaconda on Thu May 30 16:20:17 2019
#
# 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=ff97999c-00a4-4eeb-857c-90aac853140d /                       ext4    defaults        1 1
UUID=23B4-3A70          /boot/efi               vfat    umask=0077,shortname=winnt 0 0
UUID=13b2377e-13a4-464d-a854-9f55cc41a116 /obs  ext4 defaults 0 1

在末尾添加：

UUID=13b2377e-13a4-464d-a854-9f55cc41a116 /obs  ext4 defaults 0 1
参数说明：

[fs spec] [fs file] [fs vfstype] [fs mntops] [fs freq [fs passno]
具体说明，以挂载/dev/sdb1为例：

[fs spec]：分区定位，可以给UUID或LABEL，例如：UUID=6E9ADAC29ADA85CD或LABEL=software
[fs file]：具体挂载点的位置，例如：/data
[ fs vfstype]：挂载磁盘类型，linux分区一般为ext4，windows分区一般为ntfs
[fs mntops]：挂载参数，一般为defaults
[fs freq]：磁盘检查，默认为0
[fs passno]：磁盘检查，默认为0，不需要检查

验证

修改完成后，运行下述指令检查配置是否正确（配置失败将会导致系统无法正常启动）：

mount -a