Re: [Xen-users] HVM domain can not boot up with Qcow incremental image

["Fajar A. Nugraha" <fajar@xxxxxxxxx>]

2010/7/22 éæ <baozheng275@xxxxxxxxxxx>:
> Dear,
>
> Beg for your help. I am really puzzled with this problem.
>
> HVM domain can not boot up with Qcow incremental image(using command:
> qcow-create size incremental_file original_Qcow_img_file), but it can boot
> up with the original Qcow disk image file.

> The OS is CentOS 5.4ïwith xen 3.3.1.

Short summary, qcow is known to be broken in some versions of Xen.
You could probably try:
- update to xen 4.0.0
- use vhd instead of qcow:
http://lxr.xensource.com/lxr/source/tools/blktap2/README

you could use packaged xen 4 from Gitco, but if you want to use
blktap2+vhd you'd need a newer kernel, which AFAIK is not available as
binary package for Centos (yet).
Try http://lists.xensource.com/archives/html/xen-users/2010-07/msg00452.html
if you want to use the version that I use (you need to build the RPM
yourself from the provided SRPM, and it's only tested on x86_64).

-- 
Fajar

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