Acronis Backup for PC - User Guide - Manual (Page 119)

119 Copyright © Acronis International GmbH, 2002-2014
Solution: Reactivate the boot loader. You might also need to fix the loader configuration file
for the reason described in the previous item.

The system loader points to the wrong volume
This may happen when system or boot volumes are not recovered to their original location.
Solution: Modification of the boot.ini or the boot\bcd files fixes this for Windows loaders.
Acronis Backup does this automatically and so you are not likely to experience the problem.
For the GRUB and LILO loaders, you will need to correct the GRUB configuration files. If the
number of the Linux root partition has changed, it is also recommended that you change
/etc/fstab so that the SWAP volume can be accessed correctly.

Linux was recovered from an LVM volume backup to a basic MBR disk
Such system cannot boot because its kernel tries to mount the root file system at the LVM
volume.
Solution: Change the loader configuration and /etc/fstab so that the LVM is not used and
reactivate the boot loader.
5.4.1 How to reactivate GRUB and change its configuration
Generally, you should refer to the boot loader manual pages for the appropriate procedure. There is
also the corresponding Knowledge Base article on the Acronis website.
The following is an example of how to reactivate GRUB in case the system disk (volume) is recovered
to identical hardware.
1. Start Linux or boot from the bootable media, and then press CTRL+ALT+F2.
2. Mount the system you are recovering:
mkdir /mnt/system/
mount -t ext3 /dev/sda2 /mnt/system/ # root partition
mount -t ext3 /dev/sda1 /mnt/system/boot/ # boot partition
3. Mount the proc and dev file systems to the system you are recovering:
mount -t proc none /mnt/system/proc/
mount -o bind /dev/ /mnt/system/dev/
4. Save a copy of the GRUB menu file, by running one of the following commands:
cp /mnt/system/boot/grub/menu.lst /mnt/system/boot/grub/menu.lst.backup
or
cp /mnt/system/boot/grub/grub.conf /mnt/system/boot/grub/grub.conf.backup
5. Edit the /mnt/system/boot/grub/menu.lst file (for Debian, Ubuntu, and SUSE Linux
distributions) or the /mnt/system/boot/grub/grub.conf file (for Fedora and Red Hat Enterprise
Linux distributions)—for example, as follows:
vi /mnt/system/boot/grub/menu.lst
6. In the menu.lst file (respectively grub.conf), find the menu item that corresponds to the system
you are recovering. This menu items have the following form:
title Red Hat Enterprise Linux Server (2.6.24.4)
root (hd0,0)
kernel /vmlinuz-2.6.24.4 ro root=/dev/sda2 rhgb quiet
initrd /initrd-2.6.24.4.img
The lines starting with title, root, kernel, and initrd respectively determine:

The title of the menu item.