KVM in RHEL5.4 doesn't support VHD??

[tsk]

when I start a VM in KVM from a VHD format image with guest os installed in
it, which was create by vhd-util of Xen blktap2,  is failed too:
root at SS01 # /usr/libexec/qemu-kvm -m 2048 -hda
/guest/SS_test/vhd/WindowsServer2008-x64.vhd -localtime -vnc
10.250.6.31:11--daemonize
qemu: could not open disk image /guest/SS_test/vhd/WindowsServer2008-x64.vhd



2010/5/9 tsk <aixt2006 at gmail.com>

> hi folks,
>
>     I am using KVM of RHEL 5.4 ,  but i can't install a VM into a vhd
> format image:
>
> root at SS01 # /usr/bin/qemu-img create -f vpc
> /guest/SS_test/image/redhat-5.3-64.vpc 51200M
> Formatting '/guest/SS_test/image/redhat-5.3-64.vpc', fmt=vpc, size=52428800
> kB
> qemu-img: Formatting or formatting option not supported for file format
> 'vpc'
>
> But the help info of qemu-img said:
> Supported format: parallels qcow2 vvfat vpc bochs dmg cloop vmdk qcow cow
> host_device raw
>
>
> Who can tell me anything about this?
> what should i do to install a VM into a vhd format image
>
> 3ks!
>
> TSK
>
>
>