mount 挂载1T硬盘

标签：mount

参考链接：http://blog.chinaunix.net/uid-25829053-id-3067619.html

http://blog.itpub.net/23718752/viewspace-1146471/

192.168.20.249挂载1T硬盘

 1 fdisk -l #查看要挂载的硬盘容量

  显示如下：

  Disk /dev/sdb: 999.7 GB

 2 fdisk /dev/sdb   #创建分区

   m 打印帮助菜单

   p 显示分区/打印分区

   d 删除分区

   n 新建分区

  3 格式化

    mkfs -t ext4 /dev/sdb1 

具体操作如下：

root@ubu020249:/opt/backup# fdisk -l

Disk /dev/sda: 599.6 GB, 599550590976 bytes

255 heads, 63 sectors/track, 72891 cylinders, total 1170997248 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 identifier: 0x0006ca04

   Device Boot      Start         End      Blocks   Id  System

/dev/sda1   *        2048  1137901567   568949760   83  Linux

/dev/sda2      1137903614  1170995199    16545793    5  Extended

/dev/sda5      1137903616  1170995199    16545792   82  Linux swap / Solaris

Disk /dev/sdb: 999.7 GB, 999653638144 bytes

2 heads, 1 sectors/track, 976224256 cylinders, total 1952448512 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 identifier: 0x27638d58

   Device Boot      Start         End      Blocks   Id  System

/dev/sdb1            2048  1048578047   524288000   83  Linux

/dev/sdb2      1952448511  1952448511           0+  83  Linux    #这里的0+表示该分区容量为0，分区划分的有问题

root@ubu020249:/opt/backup# fdisk /dev/sdb   #重新划分分区

Command (m for help): p  #打印分区

Disk /dev/sdb: 999.7 GB, 999653638144 bytes

2 heads, 1 sectors/track, 976224256 cylinders, total 1952448512 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 identifier: 0x27638d58

   Device Boot      Start         End      Blocks   Id  System

/dev/sdb1            2048  1048578047   524288000   83  Linux

/dev/sdb2      1952448511  1952448511           0+  83  Linux

Command (m for help): d  #删除分区，

Partition number (1-4): 1   #选择删除哪个分区

Command (m for help): p

Disk /dev/sdb: 999.7 GB, 999653638144 bytes

2 heads, 1 sectors/track, 976224256 cylinders, total 1952448512 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 identifier: 0x27638d58

   Device Boot      Start         End      Blocks   Id  System

/dev/sdb2      1952448511  1952448511           0+  83  Linux

Command (m for help): d  #默认删除第二个分区

Selected partition 2

Command (m for help): p  #打印分区表

Disk /dev/sdb: 999.7 GB, 999653638144 bytes

2 heads, 1 sectors/track, 976224256 cylinders, total 1952448512 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 identifier: 0x27638d58

   Device Boot      Start         End      Blocks   Id  System

Command (m for help): n    #新建分区

Partition type:

   p   primary (0 primary, 0 extended, 4 free)

   e   extended

Select (default p): p   #划分主分区

Partition number (1-4, default 1): 1   #选择1 

First sector (2048-1952448511, default 2048):    #此处默认回车即可

Using default value 2048

Last sector, +sectors or +size{K,M,G} (2048-1952448511, default 1952448511): +600G

Command (m for help): n  #新建分区

Partition type:

   p   primary (1 primary, 0 extended, 3 free)

   e   extended

Select (default p): p  #划分主分区

Partition number (1-4, default 2): 2  #选择2 

First sector (1258293248-1952448511, default 1258293248):   此处默认回车

Using default value 1258293248

Last sector, +sectors or +size{K,M,G} (1258293248-1952448511, default 1952448511): +390G

Value out of range.       #报超出范围

Last sector, +sectors or +size{K,M,G} (1258293248-1952448511, default 1952448511): +330G  #不报错

Command (m for help): p   #打印分区

Disk /dev/sdb: 999.7 GB, 999653638144 bytes

2 heads, 1 sectors/track, 976224256 cylinders, total 1952448512 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 identifier: 0x27638d58

   Device Boot      Start         End      Blocks   Id  System

/dev/sdb1            2048  1258293247   629145600   83  Linux

/dev/sdb2      1258293248  1950353407   346030080   83  Linux

Command (m for help): d     #删除第二个分区

Partition number (1-4): 2

Command (m for help): p

Disk /dev/sdb: 999.7 GB, 999653638144 bytes

2 heads, 1 sectors/track, 976224256 cylinders, total 1952448512 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 identifier: 0x27638d58

   Device Boot      Start         End      Blocks   Id  System

/dev/sdb1            2048  1258293247   629145600   83  Linux

Command (m for help): n    #新建分区

Partition type:

   p   primary (1 primary, 0 extended, 3 free)

   e   extended

Select (default p): p   #创建主分区 

Partition number (1-4, default 2): 2 

First sector (1258293248-1952448511, default 1258293248):   默认回车

Using default value 1258293248

Last sector, +sectors or +size{K,M,G} (1258293248-1952448511, default 1952448511): 1258293248   #选择了起始值

Command (m for help): p  #打印分区

Disk /dev/sdb: 999.7 GB, 999653638144 bytes

2 heads, 1 sectors/track, 976224256 cylinders, total 1952448512 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 identifier: 0x27638d58

   Device Boot      Start         End      Blocks   Id  System

/dev/sdb1            2048  1258293247   629145600   83  Linux

/dev/sdb2      1258293248  1258293248           0+  83  Linux      #显示该分区容量为0

Command (m for help): d   #删除第二个分区

Partition number (1-4): 2

Command (m for help): p  #打印分区表

Disk /dev/sdb: 999.7 GB, 999653638144 bytes

2 heads, 1 sectors/track, 976224256 cylinders, total 1952448512 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 identifier: 0x27638d58

   Device Boot      Start         End      Blocks   Id  System

/dev/sdb1            2048  1258293247   629145600   83  Linux

Command (m for help): n   #新建分枢

Partition type:

   p   primary (1 primary, 0 extended, 3 free)

   e   extended

Select (default p): p  #主分区

Partition number (1-4, default 2): 2

First sector (1258293248-1952448511, default 1258293248):  #此处默认回车 

Using default value 1258293248

Last sector, +sectors or +size{K,M,G} (1258293248-1952448511, default 1952448511): 1952448511  #输入末位的这个值

Command (m for help): p  #打印分区

Disk /dev/sdb: 999.7 GB, 999653638144 bytes

2 heads, 1 sectors/track, 976224256 cylinders, total 1952448512 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 identifier: 0x27638d58

   Device Boot      Start         End      Blocks   Id  System

/dev/sdb1            2048  1258293247   629145600   83  Linux

/dev/sdb2      1258293248  1952448511   347077632   83  Linux

Command (m for help): w   #保存

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

格式化分区

mkfs -t ext4 /dev/sdb1

mkfs -t ext4 /dev/sdb2

挂载

mount /dev/sdb1 /opt/backup/online/

mount /dev/sdb2 /opt/backup/offline/

root@ubu020:/opt/backup# df -Th   #查看硬盘容量

Filesystem     Type      Size  Used Avail Use% Mounted on

/dev/sda1      ext4      534G  1.5G  506G   1% /

none           tmpfs     4.0K     0  4.0K   0% /sys/fs/cgroup

udev           devtmpfs  7.8G  4.0K  7.8G   1% /dev

tmpfs          tmpfs     1.6G  1.1M  1.6G   1% /run

none           tmpfs     5.0M     0  5.0M   0% /run/lock

none           tmpfs     7.8G  4.0K  7.8G   1% /run/shm

none           tmpfs     100M     0  100M   0% /run/user

/dev/sdb1      ext4      591G   70M  561G   1% /opt/backup/online    #999.7 GB的盘，挂上来之后只有870G

/dev/sdb2      ext4      326G   67M  310G   1% /opt/backup/offline

卸载

umount /opt/backup/online 

umount /opt/backup/offline 

root@ubu020249:/opt/backup# df -Th   #查看硬盘容量   已成功卸载

Filesystem     Type      Size  Used Avail Use% Mounted on

/dev/sda1      ext4      534G  1.5G  506G   1% /

none           tmpfs     4.0K     0  4.0K   0% /sys/fs/cgroup

udev           devtmpfs  7.8G  4.0K  7.8G   1% /dev

tmpfs          tmpfs     1.6G  1.1M  1.6G   1% /run

none           tmpfs     5.0M     0  5.0M   0% /run/lock

none           tmpfs     7.8G  4.0K  7.8G   1% /run/shm

none           tmpfs     100M     0  100M   0% /run/user

以下是最简便的划分分区方法：即只划分一个分区

root@ubu020249:/opt/backup# fdisk -l  #查看分区情况

Disk /dev/sda: 599.6 GB, 599550590976 bytes

255 heads, 63 sectors/track, 72891 cylinders, total 1170997248 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 identifier: 0x0006ca04

   Device Boot      Start         End      Blocks   Id  System

/dev/sda1   *        2048  1137901567   568949760   83  Linux

/dev/sda2      1137903614  1170995199    16545793    5  Extended

/dev/sda5      1137903616  1170995199    16545792   82  Linux swap / Solaris

Disk /dev/sdb: 999.7 GB, 999653638144 bytes

2 heads, 1 sectors/track, 976224256 cylinders, total 1952448512 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 identifier: 0x27638d58

   Device Boot      Start         End      Blocks   Id  System

/dev/sdb1            2048  1258293247   629145600   83  Linux     #第二盘有两个分区

/dev/sdb2      1258293248  1952448511   347077632   83  Linux

root@ubu020249:/opt/backup# fdisk /dev/sdb      #对第二块盘重新分区

Command (m for help): p  #打印分区

Disk /dev/sdb: 999.7 GB, 999653638144 bytes

2 heads, 1 sectors/track, 976224256 cylinders, total 1952448512 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 identifier: 0x27638d58

   Device Boot      Start         End      Blocks   Id  System

/dev/sdb1            2048  1258293247   629145600   83  Linux

/dev/sdb2      1258293248  1952448511   347077632   83  Linux

Command (m for help): d   #删除分区

Partition number (1-4): 1  

Command (m for help): d

Selected partition 2

Command (m for help): p

Disk /dev/sdb: 999.7 GB, 999653638144 bytes

2 heads, 1 sectors/track, 976224256 cylinders, total 1952448512 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 identifier: 0x27638d58

   Device Boot      Start         End      Blocks   Id  System

Command (m for help): n  #新建分区

Partition type:

   p   primary (0 primary, 0 extended, 4 free)

   e   extended

Select (default p): p  #主分区

Partition number (1-4, default 1): 1

First sector (2048-1952448511, default 2048):    #此处默认回车

Using default value 2048

Last sector, +sectors or +size{K,M,G} (2048-1952448511, default 1952448511): 1952448511   #写默认最后边的数

Command (m for help): w  #保存

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

格式化

mkfs -t ext4 /dev/sdb1  

挂载

mount /dev/sdb1 /opt/backup/

查看硬盘容量

root@ubu020249:/opt/backup# df -Th

Filesystem     Type      Size  Used Avail Use% Mounted on

/dev/sda1      ext4      534G  1.5G  506G   1% /

none           tmpfs     4.0K     0  4.0K   0% /sys/fs/cgroup

udev           devtmpfs  7.8G  4.0K  7.8G   1% /dev

tmpfs          tmpfs     1.6G  1.1M  1.6G   1% /run

none           tmpfs     5.0M     0  5.0M   0% /run/lock

none           tmpfs     7.8G  4.0K  7.8G   1% /run/shm

none           tmpfs     100M     0  100M   0% /run/user

/dev/sdb1      ext4      917G   72M  870G   1% /opt/backup    #查看硬盘容量也是870G

配置开机启动项

vi /etc/fstab

/dev/sdb1       /opt/backup     ext4    defaults        1       2 

/dev/sdb1   代表哪个分区

/opt/backup 挂载的位置  

ext4  是该分区的格式 

defaults  是挂载时所要设定的参数(只读，读写，启用quota等)，

输入defaults包括的参数有(rw、dev、exec、auto、nouser、async) ，

1 是使用dump是否要记录，0是不要。 

2 是开机时检查的顺序，是boot系统文件就为1，其他文件系统都为2，如不要检查就为0

本文出自 “青春邓勇” 博客，请务必保留此出处http://dengyong.blog.51cto.com/8409869/1715870

mount 挂载1T硬盘

标签：mount

原文地址：http://dengyong.blog.51cto.com/8409869/1715870