thr3ads.net - Xen users - [Xen-users] Grub does not load Xen [Dec 2008]

If this information is useful, please help other people find it:
Share via:

Andrey Chursin

2008-Dec-06 20:12 UTC

[Xen-users] Grub does not load Xen

Hello

I have installed XEN on CentOS using

yum install xen

But when in grub menu i choosing ''Centos with xen'' it do not
boot.
I see next screen:
http://img201.imageshack.us/my.php?image=xentroublerc9.jpg and then
nothing occurs. After some time(~30 secs) system automatically reboot

This is grub''s menu.lst file:


# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
console=ttyS0,57600 console=tty0
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/sda3
console=ttyS0,57600 console=tty0
#          initrd /initrd-version.img
#boot=/dev/sda
serial --unit=0 --speed=57600

terminal --timeout=2 serial console

default=1
timeout=5

hiddenmenu
tittle CentOS (2.6.18-92.1.18.el5xen)
        root (hd0,0)
        kernel /xen.gz-2.6.18-92.1.18.el5
        module /vmlinuz-2.6.18-92.1.18.el5xen ro root=LABEL=/ acpi=off
noapic nodmraid console=ttyS0,57600 console=tty0
        module /initrd-2.6.18-92.1.18.el5xen.img
title CentOS (2.6.18-92.1.18.el5)
        root (hd0,0)
        kernel /vmlinuz-2.6.18-92.1.18.el5 ro root=LABEL=/ acpi=off
noapic nodmraid console=ttyS0,57600 console=tty0
        initrd /initrd-2.6.18-92.1.18.el5.img
title CentOS (2.6.18-92.el5)
        root (hd0,0)
        kernel /vmlinuz-2.6.18-92.el5 ro root=LABEL=/ acpi=off noapic
nodmraid console=ttyS0,57600 console=tty0
        initrd /initrd-2.6.18-92.el5.img


Choosing second option boot linux, but without xen. Choosing first
option makes screen i provided above.

Thank you for your attention.


-- 
Regards,
Andrey

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Jeff Harr

2008-Dec-17 17:19 UTC

head link

Re: [Xen-users] Grub does not load Xen

Hi there, you have to change ''default'' from 1 to 0 :)


----- Original Message ----- 
From: "Andrey Chursin" <andll@danasoft.ws>
To: <xen-users@lists.xensource.com>
Sent: Saturday, December 06, 2008 3:12 PM
Subject: [Xen-users] Grub does not load Xen

> Hello
>
> I have installed XEN on CentOS using
>
> yum install xen
>
> But when in grub menu i choosing ''Centos with xen'' it do
not boot.
> I see next screen:
> http://img201.imageshack.us/my.php?image=xentroublerc9.jpg and then
> nothing occurs. After some time(~30 secs) system automatically reboot
>
> This is grub''s menu.lst file:
>
>
> # grub.conf generated by anaconda
> #
> # Note that you do not have to rerun grub after making changes to this 
> file
> # NOTICE:  You have a /boot partition.  This means that
> #          all kernel and initrd paths are relative to /boot/, eg.
> console=ttyS0,57600 console=tty0
> #          root (hd0,0)
> #          kernel /vmlinuz-version ro root=/dev/sda3
> console=ttyS0,57600 console=tty0
> #          initrd /initrd-version.img
> #boot=/dev/sda
> serial --unit=0 --speed=57600
>
> terminal --timeout=2 serial console
>
> default=1
> timeout=5
>
> hiddenmenu
> tittle CentOS (2.6.18-92.1.18.el5xen)
>        root (hd0,0)
>        kernel /xen.gz-2.6.18-92.1.18.el5
>        module /vmlinuz-2.6.18-92.1.18.el5xen ro root=LABEL=/ acpi=off
> noapic nodmraid console=ttyS0,57600 console=tty0
>        module /initrd-2.6.18-92.1.18.el5xen.img
> title CentOS (2.6.18-92.1.18.el5)
>        root (hd0,0)
>        kernel /vmlinuz-2.6.18-92.1.18.el5 ro root=LABEL=/ acpi=off
> noapic nodmraid console=ttyS0,57600 console=tty0
>        initrd /initrd-2.6.18-92.1.18.el5.img
> title CentOS (2.6.18-92.el5)
>        root (hd0,0)
>        kernel /vmlinuz-2.6.18-92.el5 ro root=LABEL=/ acpi=off noapic
> nodmraid console=ttyS0,57600 console=tty0
>        initrd /initrd-2.6.18-92.el5.img
>
>
> Choosing second option boot linux, but without xen. Choosing first
> option makes screen i provided above.
>
> Thank you for your attention.
>
>
> -- 
> Regards,
> Andrey
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users 

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Mike Lovell

2008-Dec-17 17:33 UTC

head link

Re: [Xen-users] Grub does not load Xen

Andrey Chursin wrote:> Hello
>
> I have installed XEN on CentOS using
>
> yum install xen
>
> But when in grub menu i choosing ''Centos with xen'' it do
not boot.
> I see next screen:
> http://img201.imageshack.us/my.php?image=xentroublerc9.jpg and then
> nothing occurs. After some time(~30 secs) system automatically reboot
>
> This is grub''s menu.lst file:
>
>
> # grub.conf generated by anaconda
> #
> # Note that you do not have to rerun grub after making changes to this file
> # NOTICE:  You have a /boot partition.  This means that
> #          all kernel and initrd paths are relative to /boot/, eg.
> console=ttyS0,57600 console=tty0
> #          root (hd0,0)
> #          kernel /vmlinuz-version ro root=/dev/sda3
> console=ttyS0,57600 console=tty0
> #          initrd /initrd-version.img
> #boot=/dev/sda
> serial --unit=0 --speed=57600
>
> terminal --timeout=2 serial console
>
> default=1
> timeout=5
>
> hiddenmenu
> tittle CentOS (2.6.18-92.1.18.el5xen)
>         root (hd0,0)
>         kernel /xen.gz-2.6.18-92.1.18.el5
>         module /vmlinuz-2.6.18-92.1.18.el5xen ro root=LABEL=/ acpi=off
> noapic nodmraid console=ttyS0,57600 console=tty0
>         module /initrd-2.6.18-92.1.18.el5xen.img
> title CentOS (2.6.18-92.1.18.el5)
>         root (hd0,0)
>         kernel /vmlinuz-2.6.18-92.1.18.el5 ro root=LABEL=/ acpi=off
> noapic nodmraid console=ttyS0,57600 console=tty0
>         initrd /initrd-2.6.18-92.1.18.el5.img
> title CentOS (2.6.18-92.el5)
>         root (hd0,0)
>         kernel /vmlinuz-2.6.18-92.el5 ro root=LABEL=/ acpi=off noapic
> nodmraid console=ttyS0,57600 console=tty0
>         initrd /initrd-2.6.18-92.el5.img
>
>
> Choosing second option boot linux, but without xen. Choosing first
> option makes screen i provided above.
>
> Thank you for your attention.
Just out of curiosity, does the machine still boot? Do you see console 
output on the vga/local console? From looking at the options, it appears 
that you are trying to use both a serial and vga consoles. I fought with 
doing a serial console and xen for a while. What I was able to figure 
out is that defining the console settings on the line for the xen kernel 
and then not doing any console settings on the linux kernel works. Here 
is an example from one of my xen boxes.

title Xen 3.2-1-amd64 / Debian GNU/Linux, kernel 2.6.18-6-xen-amd64 serial
     root (hd0,0)
     kernel /boot/xen-3.2-1-amd64.gz dom0_mem=786432 console=com2,vga 
com2=115200,8n1
     module /boot/vmlinuz-2.6.18-6-xen-amd64 root=/dev/hda1 ro 
pciback.permissive pciback.hide=(00:02.1)
     module /boot/initrd.img-2.6.18-6-xen-amd64

This is for a Debian box and I also limit the size of the dom0 memory. 
But something similar should work for you on CentOS. The important parts 
for you would be the ''console=com2,vga com2=115200,8n1'' and
then no
console definition on the linux kernel line. It looks like you are using 
com1 instead of com2 so change the settings to match what you want.

Hope that helps.

Mike

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Xen users - Dec 2008 - Grub does not load Xen

[Xen-users] Grub does not load Xen

Re: [Xen-users] Grub does not load Xen

Re: [Xen-users] Grub does not load Xen