Linux挂载磁盘

最新推荐文章于 2025-03-25 15:10:01 发布

再看我把你吃掉

最新推荐文章于 2025-03-25 15:10:01 发布

阅读量1.4k

点赞数 2

分类专栏： Linux 文章标签： linux

本文链接：https://blog.youkuaiyun.com/zz_aiytag/article/details/107158965

版权

Linux 专栏收录该内容

32 篇文章

订阅专栏

文章目录

现有磁盘
需求
过程
修改磁盘挂载目录

现有磁盘

[root@autlsg6e ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1        30G  1.4G   29G   5% /
devtmpfs        7.9G   16K  7.9G   1% /dev
tmpfs           7.9G     0  7.9G   0% /dev/shm
tmpfs           7.9G  8.5M  7.9G   1% /run
tmpfs           7.9G     0  7.9G   0% /sys/fs/cgroup
tmpfs           1.6G     0  1.6G   0% /run/user/0

[root@autlsg6e ~]# fdisk -l

Disk /dev/sda: 32.2 GB, 32212254720 bytes, 62914560 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: 0x00098ab6

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048    62914526    31456239+  83  Linux

Disk /dev/sdb: 8589 MB, 8589934592 bytes, 16777216 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 /dev/sdc: 53.7 GB, 53687091200 bytes, 104857600 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 /dev/sde: 53.7 GB, 53687091200 bytes, 104857600 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 /dev/sdd: 53.7 GB, 53687091200 bytes, 104857600 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

[root@autlsg6e ~]# lsblk
NAME   MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
fd0      2:0    1   4K  0 disk 
sda      8:0    0  30G  0 disk 
└─sda1   8:1    0  30G  0 part /
sdb      8:16   0   8G  0 disk [SWAP]
sdc      8:32   0  50G  0 disk 
sdd      8:48   0  50G  0 disk 
sde      8:64   0  50G  0 disk 
sr0     11:0    1  74K  0 rom

需求

把sdc盘挂到/opt目录下
把sdd盘挂到/insight/mysql目录下
把sde盘挂到/usr/hdp目录下

过程

[root@autlsg6e ~]# mkfs.xfs /dev/sdc
meta-data=/dev/sdc               isize=512    agcount=4, agsize=3276800 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=0, sparse=0
data     =                       bsize=4096   blocks=13107200, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
log      =internal log           bsize=4096   blocks=6400, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
[root@autlsg6e ~]# mkfs.xfs /dev/sdd
meta-data=/dev/sdd               isize=512    agcount=4, agsize=3276800 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=0, sparse=0
data     =                       bsize=4096   blocks=13107200, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
log      =internal log           bsize=4096   blocks=6400, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
[root@autlsg6e ~]# mkfs.xfs /dev/sde
meta-data=/dev/sde               isize=512    agcount=4, agsize=3276800 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=0, sparse=0
data     =                       bsize=4096   blocks=13107200, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
log      =internal log           bsize=4096   blocks=6400, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0

[root@autlsg6e ~]# mount /dev/sdc /opt/
[root@autlsg6e ~]# mkdir -p /insight/mysql
[root@autlsg6e ~]# mount /dev/sdd /insight/mysql
[root@autlsg6e ~]# mkdir -p /usr/hdp
[root@autlsg6e ~]# mount /dev/sde /usr/hdp/

[root@autlsg6e ~]# lsblk
NAME   MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
fd0      2:0    1   4K  0 disk 
sda      8:0    0  30G  0 disk 
└─sda1   8:1    0  30G  0 part /
sdb      8:16   0   8G  0 disk [SWAP]
sdc      8:32   0  50G  0 disk /opt
sdd      8:48   0  50G  0 disk /insight/mysql
sde      8:64   0  50G  0 disk /usr/hdp
sr0     11:0    1  74K  0 rom

[root@autlsg6e ~]# blkid
/dev/sr0: UUID="2020-07-03-19-53-51-46" LABEL="config-2" TYPE="iso9660" 
/dev/sda1: UUID="98e869c3-21df-4aa0-b3a6-c4631296f457" TYPE="xfs" 
/dev/sdb: UUID="ebbcb39f-31ab-48d4-b59a-a29380baad5c" TYPE="swap" 
/dev/sdc: UUID="17376a18-b4f9-48b0-9cfb-4ecf196a5fc3" TYPE="xfs" 
/dev/sde: UUID="717094ac-4e75-4137-8789-30ea8d18fc4a" TYPE="xfs" 
/dev/sdd: UUID="05ee8d86-d9a4-41f0-81eb-256f25d0d2a0" TYPE="xfs"

编辑/etc/fstab文件

#
#
# /etc/fstab
# Created by anaconda on Wed Dec 20 10:51:09 2017
#
# 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=98e869c3-21df-4aa0-b3a6-c4631296f457 / xfs defaults 0 0
/dev/sdb        none    swap    sw,comment=cloudconfig  0       0
# 增加下面三个盘的信息
UUID=17376a18-b4f9-48b0-9cfb-4ecf196a5fc3 /opt xfs defaults 0 0
UUID=717094ac-4e75-4137-8789-30ea8d18fc4a /insight/mysql xfs defaults 0 0
UUID=05ee8d86-d9a4-41f0-81eb-256f25d0d2a0 /usr/hdp xfs defaults 0 0

保存退出后重启虚拟机

[root@autlsg6e ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1        30G  1.4G   29G   5% /
devtmpfs        7.9G  4.0K  7.9G   1% /dev
tmpfs           7.9G     0  7.9G   0% /dev/shm
tmpfs           7.9G  8.5M  7.9G   1% /run
tmpfs           7.9G     0  7.9G   0% /sys/fs/cgroup
/dev/sde         50G   33M   50G   1% /insight/mysql
/dev/sdc         50G   33M   50G   1% /opt
/dev/sdd         50G   33M   50G   1% /usr/hdp
tmpfs           1.6G     0  1.6G   0% /run/user/0

修改磁盘挂载目录

将sdc盘由原来的/opt目录更改到/hadoop目录

[root@autlsg6e ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1        30G  1.4G   29G   5% /
devtmpfs        7.9G  4.0K  7.9G   1% /dev
tmpfs           7.9G     0  7.9G   0% /dev/shm
tmpfs           7.9G  8.5M  7.9G   1% /run
tmpfs           7.9G     0  7.9G   0% /sys/fs/cgroup
/dev/sde         50G   33M   50G   1% /insight/mysql
/dev/sdc         50G   33M   50G   1% /opt
/dev/sdd         50G   33M   50G   1% /usr/hdp
tmpfs           1.6G     0  1.6G   0% /run/user/0

[root@autlsg6e ~]# umount /opt
[root@autlsg6e ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1        30G  1.4G   29G   5% /
devtmpfs        7.9G   16K  7.9G   1% /dev
tmpfs           7.9G     0  7.9G   0% /dev/shm
tmpfs           7.9G  8.5M  7.9G   1% /run
tmpfs           7.9G     0  7.9G   0% /sys/fs/cgroup
/dev/sde         50G   33M   50G   1% /insight/mysql
/dev/sdd         50G   33M   50G   1% /usr/hdp
tmpfs           1.6G     0  1.6G   0% /run/user/0

[root@autlsg6e ~]# mkdir /hadoop

[root@autlsg6e ~]# mount /dev/sdc /hadoop/
[root@autlsg6e ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1        30G  1.4G   29G   5% /
devtmpfs        7.9G   16K  7.9G   1% /dev
tmpfs           7.9G     0  7.9G   0% /dev/shm
tmpfs           7.9G  8.5M  7.9G   1% /run
tmpfs           7.9G     0  7.9G   0% /sys/fs/cgroup
/dev/sde         50G   33M   50G   1% /insight/mysql
/dev/sdd         50G   33M   50G   1% /usr/hdp
tmpfs           1.6G     0  1.6G   0% /run/user/0
/dev/sdc         50G   33M   50G   1% /hadoop

编辑/etc/fstab文件

#
#
# /etc/fstab
# Created by anaconda on Wed Dec 20 10:51:09 2017
#
# 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=98e869c3-21df-4aa0-b3a6-c4631296f457 / xfs defaults 0 0
/dev/sdb        none    swap    sw,comment=cloudconfig  0       0
# 将/opt换为/hadoop
UUID=17376a18-b4f9-48b0-9cfb-4ecf196a5fc3 /hadoop xfs defaults 0 0
UUID=717094ac-4e75-4137-8789-30ea8d18fc4a /insight/mysql xfs defaults 0 0
UUID=05ee8d86-d9a4-41f0-81eb-256f25d0d2a0 /usr/hdp xfs defaults 0 0

保存退出后重启虚拟机

[root@autlsg6e ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1        30G  1.4G   29G   5% /
devtmpfs        7.9G   32K  7.9G   1% /dev
tmpfs           7.9G     0  7.9G   0% /dev/shm
tmpfs           7.9G  8.5M  7.9G   1% /run
tmpfs           7.9G     0  7.9G   0% /sys/fs/cgroup
/dev/sdd         50G   33M   50G   1% /usr/hdp
/dev/sde         50G   33M   50G   1% /insight/mysql
/dev/sdc         50G   33M   50G   1% /hadoop
tmpfs           1.6G     0  1.6G   0% /run/user/0