首先新挂一个盘（物理），我的盘符为sdc
[root@ralbatr ~]# fdisk /dev/sdc （对应的新盘）
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').
Command (m for help): n （新建一个分区）
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 2
First cylinder (133-1044, default 133):
Using default value 133
Last cylinder, +cylinders or +size{K,M,G} (133-1044, default 1044): +1G （指定大小）
Command (m for help): p （打印分区列表）
Disk /dev/sdc: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 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: 0x859241b6
Device Boot Start End Blocks Id System
/dev/sdc1 1 132 1060258+ 83 Linux
/dev/sdc2 133 264 1060290 83 Linux
Command (m for help): w （保存）
我在fstab中挂载sdc1
[root@ralbatr ~]# ll /dev/disk/by-uuid/
总用量 0
lrwxrwxrwx. 1 root root 10 4月 7 15:22 36507746-6055-41b3-90e1-ea50953d0353 -> ../../sda3
lrwxrwxrwx. 1 root root 10 4月 7 15:22 54f1f136-b335-4b48-bf95-f247c90b274b -> ../../dm-1
lrwxrwxrwx. 1 root root 10 4月 7 15:24 586f891d-1611-40cc-ae5a-e0409f104afc -> ../../sdc1
lrwxrwxrwx. 1 root root 10 4月 7 15:22 68230da0-48b4-4f1f-b91b-d2f396f81d0a -> ../../sda2
lrwxrwxrwx. 1 root root 10 4月 7 15:22 6fda64da-313e-428e-a1ce-610d44e7fe66 -> ../../dm-0
lrwxrwxrwx. 1 root root 10 4月 7 15:22 d6006e8a-58d5-45bf-99ee-442469bae90c -> ../../sda1
[root@syd168 ~]# ll /dev/disk/by-uuid/|grep sdc1
lrwxrwxrwx. 1 root root 10 4月 7 15:24 586f891d-1611-40cc-ae5a-e0409f104afc -> ../../sdc1
[root@ralbatr ~]# ll /dev/disk/by-uuid/|grep sdc1>>/etc/fstab
[root@ralbatr ~]# vim /etc/fstab
#
# /etc/fstab
# Created by anaconda on Thu Jan 6 15:45:12 2011
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=36507746-6055-41b3-90e1-ea50953d0353 / ext4 defaults 1 1
UUID=d6006e8a-58d5-45bf-99ee-442469bae90c /boot ext4 defaults 1 2
UUID=68230da0-48b4-4f1f-b91b-d2f396f81d0a swap swap defaults 0 0
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
UUID=586f891d-1611-40cc-ae5a-e0409f104afc /mnt ext3 defaults 0 0
[root@ralbatr ~]# mount -a （重新挂载fatab）