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

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