Microsoft KB Archive/222188

= Upgrading the System or Boot Drive to Dynamic (Rooting) =

Article ID: 222188

Article Last Modified on 2/26/2007

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Datacenter Server

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This article was previously published under Q222188



SUMMARY
When you upgrade disks in Windows 2000 from basic to dynamic, all partition information is moved into a private database at the end of the disk. Only one partition table entry of type 0x42 is entered in the Master Boot Record (MBR) at sector 0.

The process is different for disks containing the system or boot partition. The process with these disks is called "rooting."

All entries in the partition table are kept intact, but the Filesystem ID fields are changed to 0x42 to verify that they are dynamic volumes. This is done so that the BIOS can load the kernel and other files necessary to start the Disk Management driver files to read the dynamic volumes. If there is any unallocated space on the volume, an entry is added similar to those of other dynamic volumes (not rooted) that encompasses the rest of the space.



MORE INFORMATION
To revert a disk back to basic, you must back up the data, reformat the volume, reinstall Windows, and then restore the data.

NOTE: Any disks added after rooting the system or boot drive are lost because they are only included in the private region (database) and not in the partition table. For additional information, please see the following articles in the Microsoft Knowledge Base:

175761 Dynamic vs. Basic Storage in Windows 2000

222470 Dynamic Disk Numbering Is Different from the UI

Additional query words: veritas ldm

Keywords: kbdiskmemory kbinfo KB222188

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