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Re: [Xen-users] How to change the default kernel of Guest_OS

To: vipinsagar <freakyzag@xxxxxxxxx>
Subject: Re: [Xen-users] How to change the default kernel of Guest_OS
From: "Nico Kadel-Garcia" <nkadel@xxxxxxxxx>
Date: Thu, 6 Sep 2007 13:08:10 +0100
Cc: Xen Users <xen-users@xxxxxxxxxxxxxxxxxxx>
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By the way, *DO NOT* use "rpm -U" for kernels, because any error can screw up your ability to reboot successfully. Always use "rpm -i" for kernels.

On 9/6/07, Nico Kadel-Garcia <nkadel@xxxxxxxxx> wrote:
If you're using pygrub, you need to edit /boot/grub/grub.conf in the DomU.

On 9/6/07, vipinsagar < freakyzag@xxxxxxxxx> wrote:

Hello Everyone,

Domain-0 OS:Centos5[final]
Guest OS: Centos5[Centos5[final]

The virtualization [para] set up was working fine until I have done a kernel upgrade from 2.6.18-8 to 2.6.18-8.1.8 at the guest OS level.

My dom-0 is still working fine with the updated kernel. I used the same update package and -Uvh at my guest OS level and I changed the default kernel-2.6.18-8.1.8.el5xen to kernel-2.6.18-8.1.8.el5 in Guest's grub.conf [Before the Kernel update, I had only one (xen)Kernel at Guest_OS]


xm reboot cenos5v [Didn't came up]

then tried

# xm create /etc/xen/cenos5v

Using config file "/etc/xen/cenos5v".
Going to boot CentOS (2.6.18-8.1.8.el5)
  kernel: /vmlinuz-2.6.18-8.1.8.el5
  initrd: /initrd-2.6.18-8.1.8.el5.img
Error: (22, 'Invalid argument')


How do I change my guest's default bootable kernel back to xen-kernel.

Please help me out and your suggestion would be appreciated.

Thank you All

...i've to look back when I heard a gong! I could only see a huge cobweb and its shining, just got wonder, what the time it was…

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