Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Advertise on LowEndTalk.com
Fixing XENBUS, Xen 3.1 CentOS 6 DomU errors under PYGRUB
New on LowEndTalk? Please read our 'Community Rules' by clicking on it in the right menu!

Fixing XENBUS, Xen 3.1 CentOS 6 DomU errors under PYGRUB

bitronictechbitronictech Member
edited December 2012 in Tutorials

I had been recieving boot error like this:

XENBUS: Device with no driver: device/vbd/51713
XENBUS: Device with no driver: device/vbd/51714
XENBUS: Device with no driver: device/vif/0

This was also causing the VMs to boot and run very slowly as the VM was not finding the blockfront.

The fix was simple, but google provided no answers, thus this post. After trial and error and creating a new VM using a Stacklet Template... I relaized the issue was in /boot/grub/grub.conf

The old grub.conf looked like this:

default=0
timeout=5
title CentOS (2.6.32-279.el6.x86_64)
root (hd0,0)
kernel /boot/vmlinuz-2.6.32-279.14.1.el6.x86_64 console=hvc0 xencons=tty0 root=/dev/xvda1 ro
initrd /boot/initramfs-2.6.32-279.14.1.el6.x86_64.img
title vmlinuz-2.6.32-279.el6.x86_64
root (hd0,0)
kernel /boot/vmlinuz-2.6.32-279.el6.x86_64 console=hvc0 xencons=tty0 root=/dev/xvda1 ro
initrd /boot/initramfs-2.6.32-279.el6.x86_64.img

The new like this:

default=0
timeout=5
title CentOS (2.6.32-279.14.1.el6.x86_64)
root (hd0,0)
kernel /boot/vmlinuz-2.6.32-279.14.1.el6.x86_64 console=hvc0 xencons=tty0 root=/dev/xvda1 ro crashkernel=auto LANG=C
initrd /boot/initramfs-2.6.32-279.14.1.el6.x86_64.img
title vmlinuz-2.6.32-279.el6.x86_64
root (hd0,0)
kernel /boot/vmlinuz-2.6.32-279.el6.x86_64 console=hvc0 xencons=tty0 root=/dev/xvda1 ro
initrd /boot/initramfs-2.6.32-279.el6.x86_64.img

Problem solved. I hope this helps someone out there as the info on google was somewhat spotty and esoteric.

Cheers.

Bryan @ Bitronic Technologies | VPS | cPanel Shared Hosting | Dedicated Servers

Comments

Sign In or Register to comment.