expand-root-storage-in-virtualbox

Posted on In
wordpresshexeract.wordpress.com/2012/04/30/how-to-expand-the-root-filesystem-of-a-11-10-ubuntu-running-inside-vmware-player
imcczyimcczy.com/how-to-expand-the-root-filesystem-in-vmware.html
csdnblog.csdn.net/ouyang_peng/article/details/53261599

查看需要修改的硬盘

cmd到VirtualBox的安装目录

1
2
cd VirtualBox
VBoxManage list hdds

转换成vdi格式

已是vdi格式的则略过。

1
VBoxManage clonehd D:\Softwares\...\src.vmdk D:\Softwares\...\dst.vdi --format VDI
1
VBoxManage clonehd D:\Softwares\...\src.vdi D:\Softwares\...\dst.vmdk --format VMDK

修改硬盘镜像文件

1
2
3
VBoxManage modifyhd D:\Softwares\...\dst.vdi --resize 92160
# D:\Softwares\...\dst.vdi 即为要扩容的镜像。
# 92160 以MB为单位，即90G。

改完后重开下virtualbox即可看到对应镜像容量增大。

分区

查看文件系统

1
2
3
4
5
6
7
8
9
10
root@~ df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1        19G   11G  7.6G  58% /
none            4.0K     0  4.0K   0% /sys/fs/cgroup
udev            487M  4.0K  487M   1% /dev
tmpfs           100M  1.1M   99M   2% /run
none            5.0M     0  5.0M   0% /run/lock
none            498M     0  498M   0% /run/shm
none            100M     0  100M   0% /run/user
/dev/sda3        28G   21G  5.7G  79% /home/work

查看磁盘分区表

1
2
3
4
5
6
7
8
9
10
11
12
13
14
root@~ fdisk -l /dev/sda

Disk /dev/sda: 96.6 GB, 96636764160 bytes
255 heads, 63 sectors/track, 11748 cylinders, total 188743680 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00077822

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048    39845887    19921920   83  Linux
/dev/sda2        39847934    41940991     1046529    5  Extended
/dev/sda3        41940992   100661247    29360128   83  Linux
/dev/sda5        39847936    41940991     1046528   82  Linux swap / Solaris

记住此处的分区表起始位置为2048。

开始分区：

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
root@~ fdisk /dev/sda

Command (m for help): m
Command action
   a   toggle a bootable flag
   b   edit bsd disklabel
   c   toggle the dos compatibility flag
   d   delete a partition
   l   list known partition types
   m   print this menu
   n   add a new partition
   o   create a new empty DOS partition table
   p   print the partition table
   q   quit without saving changes
   s   create a new empty Sun disklabel
   t   change a partition's system id
   u   change display/entry units
   v   verify the partition table
   w   write table to disk and exit
   x   extra functionality (experts only)

Command (m for help): p

Disk /dev/sda: 96.6 GB, 96636764160 bytes
255 heads, 63 sectors/track, 11748 cylinders, total 188743680 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00077822

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048    39845887    19921920   83  Linux
/dev/sda2        39847934    41940991     1046529    5  Extended
/dev/sda3        41940992   100661247    29360128   83  Linux
/dev/sda5        39847936    41940991     1046528   82  Linux swap / Solaris

delete a partition删除所有分区后，直接add a new partition，不要退出fdisk。

记得创建交换分区，change a partition's system id可以将分区改为交换分区。

最后write table to disk and exit保存并退出fdisk。

修改fstab

记得修改/etc/fstab文件挂载选项，比如UUID改变后，需要改下。否则会无法重启。

重启虚拟机

1
root@~ reboot

调整分区大小

1
root@~ resize2fs /dev/sda1