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Thread: Couldn't create new VM in Xen (OpenSUSE 12.1)

  1. #1

    Default Couldn't create new VM in Xen (OpenSUSE 12.1)

    Hello, I need some help when I'm working on a project which calls for some development on xen.

    Currently I have OpenSUSE 12.1 installed (not in a virtual machine application like vmware or virtualbox),
    the desktop environment is kde.
    And I downloaded the source of xen, compiling it and installing it.
    I also have kernel for xen installed through yast and the xen kernel is in the list of boot menu (grub).

    What I have done, is booting into the xen kernel, editing the config file of xend to enable the http api
    and trying starting some relative services by run the following commands under root:
    modprobe evtchn
    service libvirtd start
    service xencommons start
    service xend start
    now I could see the CPU usage of Domain0 in the Virtual Machine Manager.

    but when I tried create a new virtual machine, it comes out with error:
    Error launching manager: 'max_para_memory'

    Traceback (most recent call last):
    File "/usr/share/virt-manager/virtManager/", line 840, in _do_show_create
    create = vmmCreate(virtman=True,key=0)
    File "/usr/lib/python2.7/site-packages/vminstall/gtk/", line 128, in __init__
    vminstall.options.calculate(options, defaults)
    File "/usr/lib/python2.7/site-packages/vminstall/", line 505, in calculate
    max_init_allowed, max_allowed = calculate_max_memory(options, initial_mem, maximum_mem)
    File "/usr/lib/python2.7/site-packages/vminstall/", line 366, in calculate_max_memory
    init_allowed = hypervisor_info['max_para_memory']
    KeyError: 'max_para_memory'
    I searched the Internet for keyword "max_para_memory" and "xen" but get little useful information.

    How could I deal with this problem? Thanks

  2. #2
    Join Date
    Jan 2012
    Rhein-Main Area Germany

    Default Re: Couldn't create new VM in Xen (OpenSUSE 12.1)

    Hi, I am running 2 servers with opensuse 12.1.9 (x86_64) und XEN on HP Proliants (DC Opteron 275) now, after some trouble with very special Proliant options.

    But - delete all your own compilations and install the XEN-Server with yast. It works and runs almost well. I did install 5 VM up to now on each server and will add some more.

    There are no errors during installation. install from the web and run all !!!!! updates.

    it works fine - thenightworker from Germany - Jan. 11. 2012
    use a translator - the slightly updated install-protocol is written here
    Sie befinden sich auf "" im Bereich : g) Suse 12.1/64 Net mit XEN (4)

  3. #3

    Default Re: Couldn't create new VM in Xen (OpenSUSE 12.1)

    I didn't know that Xen is now ready by yast.
    after many times of trial and errors I have fedora installed in that computer.

    next time I change to opensuse I'll have a try.
    thank you for the information.

  4. #4
    Join Date
    Jan 2012
    Rhein-Main Area Germany

    Default Re: Couldn't create new VM in Xen (OpenSUSE 12.1)

    Hi to all listeners
    there seems to be an update for the DOM 0 xen tools today (27-Jan-2012 German date). I did not find out, what they did, may be they fixed some smaller bugs. I did need to install these rpms manually.

    my update was from 4.1.2_05 to 4.1.2_12


    now I am checking, what module will work better

    we will see . . . . .

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