Disk Conversion: Gpt To Mbr - ACRONIS DISK DIRECTOR 11 ADVANCED SERVER User Manual

To convert a basic MBR disk to basic GPT
1. Right-click the basic MBR disk you want to convert to GPT, and then click Convert to GPT.
An information window will pop up, stating that you are about to convert MBR to GPT.
2. Click OK to add the pending MBR to GPT disk conversion operation.
The results of the pending operation are immediately displayed as if the operation had been
performed.
To perform the pending operation you will have to commit it (p. 24). Exiting the program without
committing the pending operations will effectively cancel them.
Note: A GPT-partitioned disk reserves the space at the end of the partitioned area necessary for the backup
area, which stores copies of the GPT header and the partition table. If the disk is full and the volume size cannot
be automatically decreased, the conversion of the MBR disk to GPT will fail.
If you plan to install an operating system that does not support GPT disks, the reverse conversion of
the disk to MBR is also possible through the same menu items. The name of the operation will be
listed as Convert to MBR.
Dynamic disk conversion: MBR to GPT
The program does not support direct MBR to GPT conversion for dynamic disks. However, you can
perform the following conversions to reach the goal using the program:
1. MBR disk conversion: dynamic to basic using the Convert to basic operation.
2. Basic disk conversion: MBR to GPT using the Convert to GPT operation.
3. GPT disk conversion: basic to dynamic using the Convert to dynamic operation.

7.4 Disk conversion: GPT to MBR

You may want to convert a basic GPT disk to a basic MBR disk in case you need to install an operating
system and software that do not support GPT disks.
The program lets you convert a disk from GPT to MBR with the following implications:

All volumes of the disk will be logical
 Boot volumes (if any) will be unbootable until you convert them to primary volumes—see
Converting a logical volume to primary (p. 45)

Volumes that allocate more than 2 TB from the beginning of the disk become inaccessible
To convert a GPT disk to MBR
1. Right-click the GPT disk you need to convert to MBR, and then click Convert to MBR.
A warning window will pop up, stating that you are about to convert GPT into MBR.
You will be explained the changes that will happen to the system after the chosen disk is
converted from GPT to MBR. For example, if such conversion will stop the disk from being
accessed by the system, the operating system will stop loading after such conversion or some
volumes on the selected GPT disk will not be accessible with MBR (e.g. volumes that allocate
more than 2 TB), you will be warned here about such implications.
2. Click OK to add the pending GPT to MBR disk conversion operation.
The results of the pending operation are immediately displayed as if the operation had been
performed.
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