centos自动挂载未使用的磁盘

[[email protected]]# fdisk -l查看磁盘分区信息

Disk /dev/sda: 107.4 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x59e26b89

Device Boot Start End Blocks Id System
/dev/sda1 * 1 13055 104856576 83 Linux

Disk /dev/sdb: 850.4 GB, 850403524608 bytes
255 heads, 63 sectors/track, 103389 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/sdc: 12001.2 GB, 12001212366848 bytes
255 heads, 63 sectors/track, 1459064 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xc346511d

Device Boot Start End Blocks Id System
/dev/sdc1 * 1 13 102400 7 HPFS/NTFS
Partition 1 does not end on cylinder boundary.
/dev/sdc2 13 13055 104755200 7 HPFS/NTFS
查看到/dev/sdc 没有挂载,接下来建立挂载点(创建挂载目录),我是临时挂载暂时命名为linshi,我先挂载sdc1的可用空间.然后先mkfs命令-(make filesystem的缩写;用来在特定的分区建立Linux文件系统)创建linux文件系统,才能执行mount命令,挂载数据盘。

[[email protected]]# mkdir /linshi

[[email protected]]#mkfs.ext4 /dev/sdc1

[root@localhost ~]# mount /dev/sdc1 /linshi 挂载完成
使用df -h 命令查看使用情况,发现多了个sdc1了
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 99G 68G 26G 73% /
tmpfs 63G 5.8M 63G 1% /dev/shm
/dev/sdb 780G 75G 666G 11% /date
/dev/sdc1 93M 1.6M 87M 2% /linshi

2、系统启动,自动挂载数据盘

查看磁盘UUID信息

[root@localhost ~]# blkid
/dev/sda1: UUID="e52fb0a2-a2f4-4956-8b7f-7752dcd5e037" TYPE="ext4"
/dev/sdb: UUID="e28226c1-e2ea-4ccb-b8b4-b9d437c31a21" TYPE="ext4"
/dev/sdc1: UUID="2fced1fa-1a72-40e9-b49f-89026e367160" TYPE="ext4"
/dev/sdc2: UUID="0839b341-03a5-4757-9ac7-23deb135d767" TYPE="ext4"
编辑系统分区表

[[email protected]]# vi /etc/fstab

添加如下信息:(将sdc1的uuid复制下来)
UUID=2fced1fa-1a72-40e9-b49f-89026e367160 /linshi ext4 defaults 1 2

编辑后的信息如下
#

/etc/fstab

Created by anaconda on Mon Oct 22 18:15:59 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=e52fb0a2-a2f4-4956-8b7f-7752dcd5e037 / ext4 defaults 1 1
UUID=2fced1fa-1a72-40e9-b49f-89026e367160 /linshi ext4 defaults 1 1
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

~
保存退出;重启系统,确认自动挂载成功。

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转载自blog.51cto.com/10720233/2312325