linux的VPS如何分区

1.fdisk -l

01. [root@MyVPS ~]# fdisk -l

02. Disk /dev/xvda: 8589 MB, 8589934592 bytes
03. 255 heads, 63 sectors/track, 1044 cylinders
04. Units = cylinders of 16065 * 512 = 8225280 bytes
05. Device Boot      Start         End      Blocks   Id  System
06. /dev/xvda1   *           1          13      104391   83  Linux
07. /dev/xvda2              14        1044     8281507+  8e  Linux LVM
08.
09. Disk /dev/xvdb: 23.6 GB, 23622320128 bytes
10. 255 heads, 63 sectors/track, 2871 cylinders
11. Units = cylinders of 16065 * 512 = 8225280 bytes
12. Device Boot      Start         End      Blocks   Id  System

 

对/dev/xvdb(此名称因系统而异)进行分区：

1. fdisk /dev/xvdb

 

01. [root@MyVPS ~]# fdisk /dev/xvdb
02. The number of cylinders for this disk is set to 2871.
03. There is nothing wrong with that, but this is larger than 1024,
04. and could in certain setups cause problems with:
05. 1) software that runs at boot time (e.g., old versions of LILO)
06. 2) booting and partitioning software from other OSs
07. (e.g., DOS FDISK, OS/2 FDISK)
08.
09. 输入n新建分区
10. Command (m for help): n
11. Command action
12. e   extended
13. p   primary partition (1-4)
14. p
15.
16. /dev/xvdb中第1个分区
17. Partition number (1-4): 1
18. First cylinder (1-2871, default 1):
19. Using default value 1
20. Last cylinder or +size or +sizeM or +sizeK (1-2871, default 2871):
21. Using default value 2871
22.
23. 输入W保存退出
24. Command (m for help): w
25. The partition table has been altered!
26. Calling ioctl() to re-read partition table.
27. Syncing disks.

将新分区xvdb1(此名称因系统而异)格式化为ext3格式

 

1. mkfs -t ext3 /dev/xvdb1

 

01. [root@MyVPS ~]# mkfs -t ext3 /dev/xvdb1
02. mke2fs 1.39 (29-May-2006)
03. Filesystem label=
04. OS type: Linux
05. Block size=4096 (log=2)
06. Fragment size=4096 (log=2)
07. 2883584 inodes, 5765319 blocks
08. 288265 blocks (5.00%) reserved for the super user
09. First data block=0
10. Maximum filesystem blocks=4294967296
11. 176 block groups
12. 32768 blocks per group, 32768 fragments per group
13. 16384 inodes per group
14. Superblock backups stored on blocks:
15. 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
16. 4096000
17. Writing inode tables: done
18. Creating journal (32768 blocks): done
19. Writing superblocks and filesystem accounting information: done
20. This filesystem will be automatically checked every 24 mounts or
21. 180 days, whichever comes first.  Use tune2fs -c or -i to override.

我们示范将新分区xvdb1挂载到目录/home
因为home已经存在，所以我们挂载
mount /dev/xvdb1 /home
如果你需要挂载在别的目录.可以新建一个目录挂载.如:home1,使用如下命令:


1. mkdir /home1
2. mount /dev/xvdb1 /home1


完成后我们通过df -hal可以看到，新分区已经挂载到目录/home上了


01. [root@MyVPS ~]# df -hal
02. Filesystem            Size  Used Avail Use% Mounted on
03. /dev/mapper/VolGroup00-LogVol00
04. 5.7G  1.4G  4.1G  25% /
05. proc                     0     0     0   -  /proc
06. sysfs                    0     0     0   -  /sys
07. devpts                   0     0     0   -  /dev/pts
08. /dev/xvda1             99M   28M   67M  30% /boot
09. tmpfs                 256M     0  256M   0% /dev/shm
10. none                     0     0     0   -  /proc/sys/fs/binfmt_misc
11. sunrpc                   0     0     0   -  /var/lib/nfs/rpc_pipefs
12. /dev/xvdb1             22G  173M   21G   1% /home


最后添加开机自动挂载：

 

1. echo "/dev/xvdb1 /home ext3 defaults 1 2" >> /etc/fstab


这样就完成了！
通过后台控制系统重做系统之后,只需要重新挂载一次即可


1. mount /dev/xvdb1 /home


最后，重新添加自动挂载即可：


1. echo "/dev/xvdb1 /home ext3 defaults 1 2" >> /etc/fstab