how to find where is grub installed for a vm on lvm using kvm

tkmsr · 10-20-2010, 02:57 AM

I had created a few virtual machines on different LVM's using virt-manager and KVM.
While upgrading one of my Ubuntu VM from 10.04 to 10.10 it asked in the mid of installation process to give the location where I should install grub.
This location I had forgotten how can I find this out?
Or what should I have done?

unSpawn · 10-28-2010, 10:52 AM

There's probably more elegant methods or tools but if you

Code:

awk '/d/ {print $NF}' /proc/partitions | while read part; do dd bs=512 count=1 if=/dev/${part} 2>/dev/null | od -txz -w60 | grep -q -m1 GRUB && echo $part; done

from inside the running VM guest as root user you should see it return the disk or partition name.