Vagrant box 增加磁盘容量方法

一直以来都是以vagrant+docker作为开发环境，可是久而久之，原Box自带的8G容量就捉襟见肘了。时不时需要手动删除一些东西。

Virtualbox 本身只支持vdi硬盘文件格式的扩容，对vmdk 格式的却不支持。但是却提供vmdk到vdi格式的转化，正好可以利用这一功能进行扩容。
因为要用到VBoxManage，所以要把D:\Program Files\Oracle\VirtualBox这个加入path。

关闭虚拟机，从Virtualbox页面查看硬盘文件地址（选中虚拟机->右键->设置->存储）（如：C:\Users\Administrator\VirtualBox VMs\vagrant_default_1493690319341_4755）。进到文件所在目录后执行：
```
 $ VBoxManage clonehd box-disk1.vmdk box-disk1.vdi –format VDI
```

给vdi格式硬盘文件扩容

 $ VBoxManage modifyhd box-disk1.vdi –resize 40960

从Virutalbox存储界面删除原硬盘文件，然后再加入新的VDI格式硬盘文件
vagrant up启动虚拟机，然后vagrant ssh进入

利用cfdisk工具创建主分区，谨记选择格式为Linux LVM (8e)

 $ sudo cfdisk /dev/sda
 cfdisk

这里的具体操作如下：

# vagrant ssh
# sudo su -
Find the name of the logical volume mapping the file-system is on (ie. /dev/mapper/VolGroupOS-lv_root).
# df 
Find the name of the physical volume (or device) that all the partitions are created on (ie. /dev/sda).
# fdisk -l
Create a new primary partition for use as a Linux LVM
# fdisk /dev/sda
Press p to print the partition table to identify the number of partitions. By default there are two - sda1 and sda2.
Press n to create a new primary partition.
Press p for primary.
Press 3 for the partition number, depending the output of the partition table print.
Press Enter two times to accept the default First and Last cylinder.
Press t to change the system's partition ID
Press 3 to select the newly creation partition
Type 8e to change the Hex Code of the partition for Linux LVM
Press w to write the changes to the partition table.
Reboot the machine, then ssh back in when it is up again and switch to the root user once more.
# reboot
# vagrant ssh
# sudo su -

利用pvcreate命令给新的分区创建物理卷

 $ sudo pvcreate /dev/sda3
 successfully created

查看VG Name，我自己的VG Name是centos

 $ sudo pvdisplay | grep "VG Name"
 VG Name centos

将新分区扩展到centos这个组

 $ vgextend centos /dev/sda3
 Volume group "centos" sucessfully extended

扩展逻辑分区

 $ lvextend /dev/mapper/centos-root /dev/sda3

resize并且生效

$ resize2fs /dev/mapper/centos-root
resize2fs 1.41.12 (17-May-2010)
Filesystem at /dev/debian-605/root is mounted on /; on-line resizing required old desc_blocks = 1, new_desc_blocks = 2
Performing an on-line resize of /dev/debian-605/root to 4937728 (4k) blocks.
The filesystem on /dev/debian-605/root is now 4937728 blocks long.

在centos 7下，这一步会出错

resize2fs 1.42.9 (28-Dec-2013)
resize2fs: Bad magic number in super-block while trying to open /dev/mapper/centos-root
Couldn't find valid filesystem superblock.
resize2fs

这时，只需要使用xfs_growfs命令替换就行了

xfs_growfs /dev/mapper/centos-root

至此，大分告成。vagrant reload重启虚拟机查看效果

df -h

于是乎，妈妈再也不用担心我的虚拟机磁盘没容量了。

参考：https://www.madcoder.cn/vagrant-box-resize.html
https://gist.github.com/christopher-hopper/9755310

Vagrant box 增加磁盘容量方法

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