Re: [Fedora-xen] Xen Not Displayed in Boot Menu
On 08/13/2012 12:57 PM, Konrad Rzeszutek Wilk wrote:
On Sun, Aug 12, 2012 at 10:49:15PM -0500, Jerry Amundson wrote:
On Thu, Jun 28, 2012 at 9:22 AM, Pasi Kärkkäinenpa...@iki.fi wrote:
On Wed, Jun 27, 2012 at 10:40:01PM -0500, Jerry Amundson wrote:
On Sat, Jun 9, 2012 at 6:37 AM, Pasi Kärkkäinenpa...@iki.fi wrote:
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
The only thing I see in fc17 (also) is a
set default=Xen
line in /boot/grub2/grub.cfg
I've been waiting, hoping, and did a fresh install of Fedora 17, then
yum install xen, in anticipation (again) of Fedora/Xen/dom0 boot
magic.
Disappointment.
And did you run grub2-mkconfig -o /boot/grub2/grub.cfg ?
What's the problem?
FWIW, my original problem, being that the system in question is i686,
was that kernel-PAE had not been installed before xen-hypervisor.
However, even after that the
set default=Xen
accomplishes nothing as Xen does not exactly match the entries put
Whoops. Did putting 'Xen 4.1.2 do it?
Nope, but
set default=Fedora, with Xen hypervisor
does work.
At first glance, I didn't see how to fix that, but can look if I get time.
The second problem is that the grub menu entries are built from
/boot/xen*, but they should not be, as such a list includes xen-syms*
(not bootable), and symlinks which just repeat entries. [thought I
brought this up or bz'd this before... hmm.]
I hacked together these changes to 20_linux_xen which worked for me
# diff -u 20_linux_xen*
--- 20_linux_xen2012-08-13 16:45:17.315983439 -0500
+++ 20_linux_xen~ 2012-06-18 15:05:32.0 -0500
@@ -23,18 +23,6 @@
. /usr/share/grub/grub-mkconfig_lib
-xen_grub_file_is_not_garbage ()
-{
- if test -f $1 -a ! -h $1; then
-case $1 in
- *-syms-*) return 1 ;;
-esac
- else
-return 1
- fi
- return 0
-}
-
export TEXTDOMAIN=grub
export TEXTDOMAINDIR=${datarootdir}/locale
@@ -168,10 +156,7 @@
if [ x${linux_list} = x ] ; then
exit 0
fi
-xen_try=`for f in /boot/xen*; do
-if xen_grub_file_is_not_garbage $f ; then echo -n $f ; fi
- done`
-xen_list=`for i in $xen_try; do
+xen_list=`for i in /boot/xen*; do
if grub_file_is_not_garbage $i ; then echo -n $i ; fi
done`
prepare_boot_cache=
--
jerry
--
xen mailing list
xen@lists.fedoraproject.org
https://admin.fedoraproject.org/mailman/listinfo/xen
Re: [Fedora-xen] Xen Not Displayed in Boot Menu
On Thu, Jun 28, 2012 at 9:22 AM, Pasi Kärkkäinen pa...@iki.fi wrote: On Wed, Jun 27, 2012 at 10:40:01PM -0500, Jerry Amundson wrote: On Sat, Jun 9, 2012 at 6:37 AM, Pasi Kärkkäinen pa...@iki.fi wrote: 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 The only thing I see in fc17 (also) is a set default=Xen line in /boot/grub2/grub.cfg I've been waiting, hoping, and did a fresh install of Fedora 17, then yum install xen, in anticipation (again) of Fedora/Xen/dom0 boot magic. Disappointment. And did you run grub2-mkconfig -o /boot/grub2/grub.cfg ? What's the problem? FWIW, my original problem, being that the system in question is i686, was that kernel-PAE had not been installed before xen-hypervisor. However, even after that the set default=Xen accomplishes nothing as Xen does not exactly match the entries put in place by grub2-mkconfig. So, getting further along, but still no Xen without manual assistance. jerry -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
Re: [Fedora-xen] Xen Not Displayed in Boot Menu
On Fri, Jun 29, 2012 at 02:47:25PM +0200, Dario Faggioli wrote: On Thu, 2012-06-28 at 17:22 +0300, Pasi Kärkkäinen wrote: I've been waiting, hoping, and did a fresh install of Fedora 17, then yum install xen, in anticipation (again) of Fedora/Xen/dom0 boot magic. Disappointment. :-( And did you run grub2-mkconfig -o /boot/grub2/grub.cfg ? What's the problem? I wonder if the person built their own kernel? One of the things /etc/grub.d/20-xenlinux is that it scans in /boot/config-XXX to see if CONFIG_XEN_DOM0 is defined. Well, if you try to install the kernel doing: make oldconfig make install it won't put the config file in /boot directory. So Grub won't create an Xen entry for it. The fix is to manually copy the config to /boot and it works just right. Or just use kernel RPMS. Just for the record, this is all working for me, right out of the box, for both F16 and F17. All I do is `yum install xen' and when rebooting I found all I need in grub... Dario -- This happens because I choose it to happen! (Raistlin Majere) - Dario Faggioli, Ph.D, http://retis.sssup.it/people/faggioli Senior Software Engineer, Citrix Systems RD Ltd., Cambridge (UK) -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
Re: [Fedora-xen] Xen Not Displayed in Boot Menu
On Wed, Jun 27, 2012 at 10:40:01PM -0500, Jerry Amundson wrote: On Sat, Jun 9, 2012 at 6:37 AM, Pasi Kärkkäinen pa...@iki.fi wrote: 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 The only thing I see in fc17 (also) is a set default=Xen line in /boot/grub2/grub.cfg I've been waiting, hoping, and did a fresh install of Fedora 17, then yum install xen, in anticipation (again) of Fedora/Xen/dom0 boot magic. Disappointment. And did you run grub2-mkconfig -o /boot/grub2/grub.cfg ? What's the problem? -- Pasi -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
Re: [Fedora-xen] Xen Not Displayed in Boot Menu
On Sat, Jun 9, 2012 at 6:37 AM, Pasi Kärkkäinen pa...@iki.fi wrote: 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 The only thing I see in fc17 (also) is a set default=Xen line in /boot/grub2/grub.cfg I've been waiting, hoping, and did a fresh install of Fedora 17, then yum install xen, in anticipation (again) of Fedora/Xen/dom0 boot magic. Disappointment. Thanks anyway, jerry -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
Re: [Fedora-xen] Xen Not Displayed in Boot Menu
On Sat, Jun 09, 2012 at 02:37:32PM +0300, Pasi Kärkkäinen wrote: 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 Wouldn't it be in /boot/grub2/grub.cfg ? 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 -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
Re: [Fedora-xen] Xen Not Displayed in Boot Menu
I found the resolution for it. If we update the bootloader to use grub2 instead of legacy grub it will then list all the options. Linux as well as Xen related options. For updating the bootloader I followed the steps mentioned in below link :- http://fedoraproject.org/wiki/Features/Grub2#From_an_Installed_System_with_Grub_Legacy Testing With Chain Loading GRUB2 includes a boot image that's loadable from GRUB Legacy, so you can try it out without wiping out your existing, working MBR. To set up GRUB2 without actually writing to the MBR, run grub2-install --grub-setup=/bin/true /dev/sda Writing to the MBR If that works, you can go on testing to writing to your MBR. Same steps as above, but don't tell grub to run the dummy setup program /bin/true grub2-install /dev/sda Congratulations! You've reached the point of no return! If you can't boot now you will need to run a rescue CD Regards, ~Sorabh On Mon, Jun 11, 2012 at 11:27 AM, Konrad Rzeszutek Wilk konrad.w...@oracle.com wrote: On Sat, Jun 09, 2012 at 02:37:32PM +0300, Pasi Kärkkäinen wrote: 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 Wouldn't it be in /boot/grub2/grub.cfg ? 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 -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen -- Regards, Sorabh -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
Re: [Fedora-xen] Xen Not Displayed in Boot Menu
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 -- xen mailing list xen@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen
