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Ubuntu下挂载新硬盘

ubuntu下加载新硬盘

1、fdisk -l 查看磁盘情况

Disk /dev/xvdb: 536.9 GB, 536870912000 bytes

255 heads, 63 sectors/track, 65270 cylinders, total 1048576000 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

Disk /dev/xvda: 21.5 GB, 21474836480 bytes

能看/dev/xvdb是块空磁盘

2、# fdisk /dev/xvdb  分区,因只挂载到一个目录,所以只分一个主分区

Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel

Building a new DOS disklabel with disk identifier 0x2772b822.

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): p

Disk /dev/xvdb: 536.9 GB, 536870912000 bytes

255 heads, 63 sectors/track, 65270 cylinders, total 1048576000 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: 0x2772b822

    Device Boot      Start         End      Blocks   Id  System

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): 

Using default value 1

First sector (2048-1048575999, default 2048): 

Using default value 2048

Last sector, +sectors or +size{K,M,G} (2048-1048575999, default 1048575999): 

Using default value 1048575999

Command (m for help): p

Disk /dev/xvdb: 536.9 GB, 536870912000 bytes

255 heads, 63 sectors/track, 65270 cylinders, total 1048576000 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: 0x2772b822

    Device Boot      Start         End      Blocks   Id  System

/dev/xvdb1            2048  1048575999   524286976   83  Linux

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

3、格式化为ext4文件系统

# mkfs.ext4 /dev/xvdb1

mke2fs 1.42 (29-Nov-2011)

Filesystem label=

OS type: Linux

Block size=4096 (log=2)

Fragment size=4096 (log=2)

Stride=0 blocks, Stripe width=0 blocks

32768000 inodes, 131071744 blocks

6553587 blocks (5.00%) reserved for the super user

First data block=0

Maximum filesystem blocks=4294967296

4000 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, 71663616, 78675968, 

102400000

Allocating group tables: done                            

Writing inode tables: done                            

Creating journal (32768 blocks): done

Writing superblocks and filesystem accounting information: done 

4、设置磁盘卷标

# e2label /dev/xvdb1 data

5、新建挂载点，并挂载到目录

# mkdir /data

# mount /dev/xvdb1  /data

6、写入设置加载文件，让开机自动挂载

# vi /etc/fstab

LABEL=data              /data                 ext4    defaults        1 2

到此完成Ubuntu下挂载新硬盘