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From Kirk Kosinski <>
Subject Re: CentOS with X Server
Date Mon, 18 Mar 2013 19:02:52 GMT
On XenServer, PV mode Linux VMs do not have a virtual video card and are
unable to run X on the console. The console you see in XenCenter and
CloudStack for such VMs is actually a virtual serial console. If you
want to use X on a PV mode Linux VM, set up a VNC server in the VM and
connect directly to it using a VNC client instead of using the console
in CloudStack or XenCenter.

Alternatively you can use the "Other (32/64-bit)" OS Types.  This will
create VMs in HVM mode with emulated hardware, including a video card.
The downside of HVM is poor performance and limited hardware
configuration options (100 Mb/s NIC, single CPU core, etc.).

Best regards,

On 03/18/2013 08:48 AM, Paolo De Marco wrote:
> Il put 4gb but nothing..
> text install is not a problem. After this i install x, gnome ecc. ecc..
> Then i modify /etc/inittab and set runlevel 5. Reboot but nothing
> change... always boot in text mode....
> If I select "Other Centos 6.0 64bit" I can start install in graphical
> mode. I complete the install but when i reboot the VM i see in console
> only lines....
> Thanks
> Il 18/03/2013 16:39, Ahmad Emneina ha scritto:
>> I believe the guest os wants a minimum amount of ram to run the
>> graphical installer. Try bumping up the memory by installing with a
>> larger service offering and see if that helps.
>> Ahmad
>> On Mar 18, 2013, at 8:23 AM, Paolo De Marco
>> <> wrote:
>>> Hello,
>>> I've cloudstack 4.0.1 installed and worked with Xen.
>>> I have sever template. Now I want to add a template with CentOS 6.3
>>> with X server. I can install all but CentOS start only in text
>>> mode... Startx doesn't work. Same thing with Ubuntu 12.04.
>>> Any idea?
>>> Thanks.
>>> Paolo

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