[Fedora-xen] Xen Not Displayed in Boot Menu

[Pasi Kärkkäinen]

On Fri, Jun 08, 2012 at 12:00:44AM -0700, sorabh hamirwasia wrote:
>    Hi,
>    I have installed "Xen" on Fedora16 host using "yum install xen" command
>    and it has been installed properly. I can see the changes in
>    /etc/grub2.cfg file too. But when I reboot then the entry for Xen is not
>    listed in the boot menu. On further analyzing I found that in
>    /etc/grub.conf there is no entry related to Xen. Do we need to modify
>    grub.conf manually ? If yes then how to do that. ?
>    Please help me with this.
>

You can tweak the Xen hypervisor cmdline options in:
/etc/default/grub file, like this:

GRUB_DEFAULT="Xen"
GRUB_CMDLINE_XEN="dom0_mem=1024M,max:1024M loglvl=all guest_loglvl=all"

.. or whatever options you want to use.
After that update the grub menu: grub2-mkconfig -o /boot/grub2/grub.cfg

-- Pasi