Linux mount 硬盘挂载

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1、查看硬盘信息

• fdisk -l

 Disk /dev/xvda: 21.5 GB, 21474836480 bytes
 255 heads, 63 sectors/track, 2610 cylinders, total 41943040 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: 0x000da36d
 Device Boot Start End Blocks Id System
 /dev/xvda1 * 2048 41940991 20969472 83 Linux
 Disk /dev/xvdb: 107.4 GB, 107374182400 bytes
 255 heads, 63 sectors/track, 13054 cylinders, total 209715200 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: 0x00000000
 Disk /dev/xvdb doesn't contain a valid partition table

2、进入磁盘，对磁盘进行分区

• fdisk /dev/xvdb

Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0xabf49954.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p
Partition number (1-4, default 1): 1
First sector (2048-209715199, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-209715199, default 209715199):
Using default value 209715199
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.

``

• fdisk -l

Disk /dev/xvda: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders, total 41943040 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: 0x000da36d
Device Boot Start End Blocks Id System
/dev/xvda1 * 2048 41940991 20969472 83 Linux
Disk /dev/xvdb: 107.4 GB, 107374182400 bytes
43 heads, 44 sectors/track, 110843 cylinders, total 209715200 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: 0xabf49954
Device Boot Start End Blocks Id System
/dev/xvdb1 2048 209715199 104856576 83 Linux

3、格式化分区

• mkfs.ext3 /dev/xvdb1 （将/dev/xvdb1格式化为ext3类型）

mke2fs 1.42.9 (4-Feb-2014)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
6553600 inodes, 26214144 blocks
1310707 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
800 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

4、创建/disk2目录

• mkdir /disk2

5、挂载

• mount /dev/xvdb1 /disk2/

6、查看硬盘大小以及挂载分区

• df -h

Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 20G 16G 3.4G 82% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
udev 3.9G 4.0K 3.9G 1% /dev
tmpfs 799M 392K 799M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 3.9G 0 3.9G 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/xvdb1 99G 60M 94G 1% /disk2

7、配置开机自动挂载

• vim /etc/fstab

/dev/xvdb1 /disk2 ext3 defaults 0 0