On 07/19/2011 05:25 AM, 赵小强 wrote: > I just upgrade from centos 5.6 to centos 6.0 on a x86_64 box. But > when I try to create a new virtual guest, virt-manager give: Error: > internal error cannot parse /usr/bin/qemu-system-x86_64 version number > in 'QEMU emulator version 0.14.0, Copyright (c) 2003-2008 Fabrice Bellard'. > I have googled it ,but got nothing help. Any help? Thanks first :-) So you did an upgrade from 5.6 to 6.0 and not a fresh install of 6.0? I do not know what is causing this error but it suggests that some RPM packages were not (properly) upgraded. I do know that upgrading from 5.6 to 6.0 is *not* supported. This is to prevent errors, perhaps like yours. If nobody else on the list can help you, I suggest that you backup your data and you do a clean install of 6.0. Regards, Patrick