Bedienungsanleitung Acronis Backup Advanced Version 11.5 Update 6 (Seite 157 von 449) (Englisch)

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Please do not shut down or reboot the machine until the recovery is completed. If you switch off the

machine, all the changes made to the system since the last boot up will be lost. The system will not be

recovered, not even partially. The only possible solution in this case will be to restart the recovery process

from a bootable media.

8. The background recovery continues until all the selected volumes are recovered, the log entry is

made and the Acronis Active Restore icon disappears from the system tray.

5.5 Bootability troubleshooting

If a system was bootable at the time of backup, you expect that it will boot after recovery. However,

the information the operating system stores and uses for booting up may become outdated during

recovery, especially if you change volume sizes, locations or destination drives. Acronis Backup

automatically updates Windows loaders after recovery. Other loaders might also be fixed, but there

are cases when you have to re-activate the loaders. Specifically when you recover Linux volumes, it is

sometimes necessary to apply fixes or make booting changes so that Linux can boot and load

correctly.

Below is a summary of typical situations that require additional user actions.

Why a recovered operating system may be unbootable

 The machine BIOS is configured to boot from another HDD.

Solution: Configure the BIOS to boot from the HDD where the operating system resides.

 The system was recovered on dissimilar hardware and the new hardware is incompatible with

the most critical drivers included in the backup

Solution: Boot the machine using bootable media and apply Acronis Universal Restore (p.

148) to install the appropriate drivers and modules.

 Windows was recovered to a dynamic volume that cannot be bootable

Solution: Recover Windows to a basic, simple or mirrored volume.

 A system volume was recovered to a disk that does not have an MBR

When you configure recovery of a system volume to a disk that does not have an MBR, the

program prompts whether you want to recover the MBR along with the system volume. Opt

for not recovering, only if you do not want the system to be bootable.

Solution: Recover the volume once again along with the MBR of the corresponding disk.

 The system uses Acronis OS Selector

Because the Master Boot Record (MBR) can be changed during the system recovery, Acronis

OS Selector, which uses the MBR, might become inoperable. If this happens, reactivate

Acronis OS Selector as follows.

Solution: Boot the machine from the Acronis Disk Director's bootable media and select in the

menu Tools -> Activate OS Selector.

 The system uses GRand Unified Bootloader (GRUB) and was recovered from a normal (not

from a raw, that is, sector-by-sector) backup

One part of the GRUB loader resides either in the first several sectors of the disk or in the

first several sectors of the volume. The rest is on the file system of one of the volumes.

System bootability can be recovered automatically only when the GRUB resides in the first

several sectors of the disk and on the file system to which direct access is possible. In other

cases, the user has to manually reactivate the boot loader.

Solution: Reactivate the boot loader. You might also need to fix the configuration file.

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