VM-linux中增加一块硬盘

原帖 /article/4469679.html

1。增加前先关闭VM，然后编辑VM属性，增加一个vritual disk（scsi），其实是增加一个虚拟磁盘文件。



hard disk2就是我新增加的

2。查看目前的磁盘结构
[root@mail ~]# fdisk -l
Disk /dev/sda: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 905 7164990 83 Linux
/dev/sda3 906 1032 1020127+ 83 Linux
/dev/sda4 1033 1305 2192872+ 5 Extended
/dev/sda5 1033 1159 1020096 82 Linux swap / Solaris
/dev/sda6 1160 1305 1172713+ 83 Linux
Disk /dev/sdb: 1073 MB, 1073741824 bytes
255 heads, 63 sectors/track, 130 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/sdb doesn't contain a valid partition table
//说明磁盘/dev/sdb还没有被系统识别

3。分区
[root@mail ~]# fdisk /dev/sbd

Command (m for help): n //输入m获得帮助信息，n创建分区
Command action
e extended
p primary partition (1-4)
p //创建主分区
Partition number (1-4): 1 //指定分区的起始柱面
First cylinder (1-130, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-130, default 130): //设置分区容量，直接回车表示全部
Using default value 130
Command (m for help): t //改变一个分区的系统ID
Selected partition 1
Hex code (type L to list codes): L //查看文件类型对应的Hex
85 Linux extended //linux ext3的hex是85
Hex code (type L to list codes): 85
You cannot change a partition into an extended one or vice versa
Delete it first.

Command (m for help): p //列出当前硬盘的分区
Disk /dev/sdb: 1073 MB, 1073741824 bytes
255 heads, 63 sectors/track, 130 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 130 1044193+ 83 Linux
Command (m for help): w //保存
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.

4。查看现在的分区
[root@mail ~]# fdisk -l
Disk /dev/sda: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 905 7164990 83 Linux
/dev/sda3 906 1032 1020127+ 83 Linux
/dev/sda4 1033 1305 2192872+ 5 Extended
/dev/sda5 1033 1159 1020096 82 Linux swap / Solaris
/dev/sda6 1160 1305 1172713+ 83 Linux
Disk /dev/sdb: 1073 MB, 1073741824 bytes
255 heads, 63 sectors/track, 130 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 130 1044193+ 83 Linux

5。格式化分区
[root@mail ~]# mkfs.ext3 /dev/sdb1 //格式化成ext3格式

6。挂载分区
[root@mail ~]# mount /dev/sdb1 /tmp
[root@mail ~]# df -h /tmp
Filesystem Size Used Avail Use% Mounted on
/dev/sdb1 1004M 1.3M 952M 1% /tmp

7。自动挂载
修改/etc/fstab
增加一行
/dev/sdb1 /sdb1 ext3 defaults 0 0
重起