[Fedora-xen] Guest install very slow

[Adrian Revill]

Hi,
I have just done a clean install of FC6 with visualization on a single 
cpu box (AMD 1.7+XP 1.5G ram)
The performance of the box running FC6 is fine, all the windows and 
menus open quickly and smoothly.

I followed the FedoraXenQuickstartFC6 and all seems to work perfectly 
except the guest seems to run very slowly.
The Virtual machine manager shows about 0.1% cpu use for the new guest 
and Domain-0 stays about 4%

I have extracted the FC6 isos onto the same box and created a nfs mount 
point for the source.
I am using /var/lib/xen/images/testOne as the directory for the disk 
path with a 3G limit
I set 512Mb ram and 1CPU

The boot seems quite quick, and anaconda starts, all the selection of 
the language and keyboard seems ok too.

Then it sits for about 15mins with Running Anaconda at the bottom of the 
screen, then starts the x window. It takes about 1/2 hr for a X cursor 
to appear, that will follow mouse movement, but takes a couple of 
seconds to catch up.
I  never have seen anything more. Just a black window, even after 
leaving it all weekend.

when i run virsh list it always says the testOne domain is blocked.

I have looked in all the log files and the console, but there are no errors.

Anyone got any ideas? as i guess its not meant to be this slow.