Acronis Backup for Linux Server - User Guide - Manual (Page 101)

101 Copyright © Acronis International GmbH, 2002-2014
Select the destination disk for each of the source disks.
NT signature (p. 101)
Select the way the recovered disk's signature will be handled. The disk signature is used by
Windows and the Linux kernel version 2.6 and later.
Disk destination
To specify a destination disk:
1. Select a disk where you want the selected disk to recover to. The destination disk's space should
be at least the same size as the uncompressed image data.
2. Click OK.
All the data stored on the target disk will be replaced by the backed-up data, so be careful and watch out for
non-backed-up data that you might need.
NT signature
The NT signature is a record that is kept in the MBR. It uniquely identifies the disk for the operating
system.
When recovering a disk containing a system volume, you can choose what to do with the NT
signature of the target disk. Specify any of the following parameters:

Select automatically
The software will keep the NT signature of the target disk if it is the same as the NT signature
stored in the backup. (In other words, if you recover the disk to the same disk that was backed
up.) Otherwise, the software will generate a new NT signature for the target disk.
This is the default selection recommended in most cases. Use the following settings only if you
absolutely need to.

Create new
Acronis Backup will generate a new NT signature for the target hard disk.

Recover from backup
Acronis Backup will replace the NT signature of the target hard disk with one from the disk
backup.
Note: You should be absolutely sure that none of the existing disks on this machine has the same NT
signature. Otherwise, the operating system runs from the first disk at the startup; discovers the same
signature on the second one, automatically generates a new unique NT signature and assigns it to the
second disk. As a result, all the volumes on the second disk will lose their letters, all paths will be invalid on
the disk, and programs won't find their files. The operating system on that disk will be unbootable.
Recovering the disk signature may be desirable due to the following reasons:

Acronis Backup schedules tasks using the signature of the source hard disk. If you recover the
same disk signature, you don't need to re-create or edit the tasks created previously.

Some installed applications use disk signature for licensing and other purposes.

Keep existing
The program will leave the NT signature of the target hard disk untouched.