openstack/openstack-manuals
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Add an admonition about converting windows VM from vmdk to qcow2

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In "7. Converting between image formats", people should know if
they convert windows VM, they should take care of the virtio driver.
Otherwise, they will get a blue screen when launching the VM without
installing virtio driver. Or you can set the hw_disk_bus image property
to ide which will avoid this issue, but it will have an significant
cost to performance.

Change-Id: I42e8e71b9c92d7a4514973aafdfcf50876b1758b
Closes-Bug: #1481229
This commit is contained in:
Shuquan Huang 2015-08-28 15:14:42 +00:00
parent b66f0931f0
commit 8f703276df
1 changed files with 6 additions and 0 deletions
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6
doc/image-guide/ch_converting.xml
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@ -61,6 +61,12 @@
<note> <note>
<para>The <literal>-f <replaceable>format</replaceable></literal> flag is optional. <para>The <literal>-f <replaceable>format</replaceable></literal> flag is optional.
If omitted, <command>qemu-img</command> will try to infer the image format.</para> If omitted, <command>qemu-img</command> will try to infer the image format.</para>
<para>When converting an image file with Windows OS, ensure the virtio driver is
installed. Otherwise, you will get a blue screen of death or BSOD when
launching the image due to lack of the virtio driver. Another option is to
set the image properties as below when you update the image in glance to
avoid this issue, but it will reduce performance significantly.</para>
<screen><prompt>$</prompt> <userinput>glance image-update --property hw_disk_bus='ide' image_id</userinput></screen>
</note> </note>
</para> </para>
</simplesect> </simplesect>