[Libguestfs] Virt-rescue problem

Hello, I am trying to run this command virt-rescue --suggest -d XYZ virt-rescue --network -d XYZ the prompt is looking like this: I have no name!@(none): now I mounted the root partition suggested by virt-rescue to /sysroot then chroot /sysroot after that I tried to rebuild an initrd.img with the following command update-initramfs -c -k 3.2.0-58-generic But it failed with following error: update-initramfs: failed for /boot/initrd.img-3.2.0-58-generic with 1. Also when running apt-get update , it fails saying "no address associated with hostname. host configuration:ubuntu 14.04 guest:ubuntu 12.04 -- Thanks and regards, Suvajit Sarkar