N天用了个6G左右的虚拟的硬盘安装fedora，之后安装了
vsftpd,samba,mysql,and so on ...结果硬盘空间不够用了，别外挂载了一个硬盘.（我还是喜欢FAQ形式的记录）
1.怎么样在VM中增加一个硬盘?
点击VM--＞settings...(ctrl+d),出来Virtual Machine
Settings对话框.找到Hardware标签,点击Hard Disk (IDE),再点Add按钮.出来Add Hardware
Wizard对话框,在这你就可创建一个新的硬盘了.
2.怎么分区格式化?
Linux对硬件的管理是基于文件的,刚刚增加的一个硬盘其实在/dev/目录下,设备名叫sdb,我们可以用ls -lh
看一下/dev/sdb是一个块文件.
[root@localhost ~]# ls -hl /dev/sdb
brw-r----- 1 root disk 8, 16 10-26 09:28 /dev/sdb
下面对刚增加的硬盘进行分区.
[root@localhost ~]# fdisk /dev/sdb
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF
disklabel
Building a new DOS disklabel with disk identifier 0x396d026c.
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 #n(new)新建一个分区
Command action
e extended #扩展分区
p primary partition (1-4) #主分区
p #这里我们建一个主分区
Partition number (1-4): 1 #分区编号
First cylinder (1-130, default 1): #开始柱面
Using default value 1 #采用默认
Last cylinder or +size or +sizeM or +sizeK (1-130, default 130):
Using default value 130 #结束柱面，我们默认的值
Command (m for help): w #w(write)最后别忘了把我们的分区写入到硬盘
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks. #ok!,分区完了~
以下是格式化:
[root@localhost ~]# mkfs.ext2 /dev/sdb1 #mkfs.ext2=mkfs -t ext2
mke2fs 1.40.8 (13-Mar-2008)
Warning: 256-byte inodes not usable on older systems
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
65280 inodes, 261048 blocks
13052 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=268435456
8 block groups
32768 blocks per group, 32768 fragments per group
8160 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376
Writing inode tables: done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 26 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
3.怎么挂载分区?
分区，格式化之后可以挂载硬盘了.
[root@localhost ~]# mount /dev/sdb1 /mnt/sdb
4.怎么开机自动挂载文件硬盘?
其实/etc/fstab是文件系统的配制文件我们改下里面的内容就可以实现自动挂载.
[root@localhost ~]# vi /etc/fstab
/dev/VolGroup00/LogVol00 / ext3
defaults 1 1
UUID=3e775749-0e7f-465b-b9d0-7880a4822a9f /boot
ext3 defaults 1 2
tmpfs /dev/shm tmpfs defaults 0
0
devpts /dev/pts devpts gid=5,mode=620 0
0
sysfs /sys sysfs defaults 0
0
proc /proc proc defaults 0
0
/dev/VolGroup00/LogVol01 swap swap defaults
0 0
/dev/sdb1 /mnt/sdb ext2 defaults
0 0
#最后一行是我自己加的,第一个字段是硬盘的位置,第二字段是挂载的目录,第三字段是文件系统，后面保持默认.
这样就可以成功的挂载两个或者多个硬盘了！
