OpenStack中实例的分区 [英] partitioning of instance in OpenStack

问题描述

我将vdi格式的虚拟盒映像上传到OpenStack.我为使用该.vdi映像创建的实例添加了100 G大小的样式.但是它仍然显示在虚拟盒子中分配的15 G大小.我不知道如何对磁盘进行分区以使用OpenStack风味提供的大小.

I uploaded a virtual box image in vdi format to OpenStack. I added a flavor of 100 G size to the instance created using that .vdi image. But it still showing the 15 G size allocated in virtual box. I dont know how to partition the disk to use the size provided by the OpenStack flavor.

# df -h 

如下

Filesystem      Size  Used Avail Use% Mounted on
/dev/vda1        15G  4,4G  9,3G  32% /
none            4,0K     0  4,0K   0% /sys/fs/cgroup
udev            2,0G  4,0K  2,0G   1% /dev
tmpfs           396M  824K  395M   1% /run
none            5,0M     0  5,0M   0% /run/lock
none            2,0G  144K  2,0G   1% /run/shm
none            100M   40K  100M   1% /run/user

还有

# fdisk /dev/vda1

如下

Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel

Building a new DOS disklabel with disk identifier 0xe682a7ff.
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): p

Disk /dev/vda1: 15.8 GB, 15793651712 bytes
16 heads, 63 sectors/track, 30602 cylinders, total 30846976 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: 0xe682a7ff

 Device Boot      Start         End      Blocks   Id  System

Command (m for help): 

我如何对虚拟机磁盘进行分区以获取整个100 Gb大小?

How I need to partition the Virtual machine disk to get the entire 100 Gb size??

推荐答案

分区和文件系统不会自动扩展.

The partition and filesystem is not extended automatically.

提示:在您的问题中，您在分区/dev/vda1上使用了fdisk，而不是磁盘/dev/vda.

Hint: in your question you use fdisk on the partition /dev/vda1 instead of the disk /dev/vda.

如果要使用现有的分区布局，则必须执行两个步骤:

You have to do two steps if you want to use the existing partition layout:

1. 增加分区的大小.互联网上有许多文档.例如:已分区:将分区扩展到未使用的空间.

增加文件系统的大小.这里所需的命令取决于您的文件系统.如果使用ext [234]，则可以使用resize2fs /dev/vda1.

Increase the size of the filesystem. The command that is needed here depends on your filesystem. If you are using ext[234] you can use resize2fs /dev/vda1.

作为替代方案，您可以在空白区域中创建一个新分区(例如，使用fdisk /dev/vda，然后使用命令n来表示新分区)，在新分区上创建一个新文件系统并将其挂载-不要忘记将其添加到在下次启动后自动挂载的/etc/fstab中.

As an alternative you can create a new partition in the empty space (using e.g. fdisk /dev/vda and then the command n for new), create a new file system on the new partition and mount it - don't forget to add it to /etc/fstab that is gets mounted automatically after the next boot.

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