1、 查看新磁盘信息
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | [root@Crayfish ~]# fdisk -l Disk /dev/xvda: 21.5 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00060953 Device Boot Start End Blocks Id System /dev/xvda1 * 1 2611 20970496 83 Linux Disk /dev/xvdb: 21.5 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 |
2、硬盘分区
2.1、进入fdisk模式
1 2 3 4 5 6 7 8 9 10 11 | [root@Crayfish ~]# 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 0xc233737d. 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) WARNING: DOS-compatible mode is deprecated. It's strongly recommended to switch off the mode (command 'c') and change display units to sectors (command 'u'). |
2.2、输入n进行分区
1 2 3 4 | Command (m for help): nCommand action e extended p primary partition (1-4) |
2.3、选择分区类型，p为主分区，linux上主分区最多能有4个；e为扩展分区，扩展分区 linux上扩展分区只能有1个，扩展分区创建后不能直接使用，还要在扩展分区上创建逻辑分区。这里选择p
1 | p |
2.4、选择分区个数，最多可以分4个区，这里就只分一个了。
1 | Partition number (1-4): 1 |
2.5、设置柱面，这里选择默认值就可以
1 2 | First cylinder (1-2610, default 1): Using default value 1 |
2.6、设置柱面，这里选择默认值就可以
1 2 | Last cylinder, +cylinders or +size{K,M,G} (1-2610, default 2610): Using default value 2610 |
2.7、输入w，写入分区表，进行分区
1 2 3 4 5 6 | Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks. [root@Crayfish ~]# |
3、格式化分区
如果创建的是主分区
1 | [root@Crayfish ~]# mkfs -t ext3 /dev/xvdb |
4、挂载硬盘
4.1、创建挂载点
在根目录下创建storage目录
1 | [root@Crayfish ~]#mkdir /storage |
4.2、将/dev/sdb1挂载到/storage下
1 | [root@Crayfish ~]#mount /dev/xvdb /storage |
5、设置开机启动自动挂载
新创建的分区不能开机自动挂载，每次重启机器都要手动挂载。
设置开机自动挂载需要修改/etc/fstab文件
1 | [root@Crayfish ~]#vi /etc/fstab |
在文件的最后增加一行
1 | /dev/sdb5 /storage ext3 defaults 1 2 |