MSDN says the following about changing drive types:
However, you can use dynamic disks with other operating systems, such as UNIX. To do this, you need to create a separate volume for the non-Windows operating system.
This implies Windows has a way of letting me create a plain old partition on a disk managed by Windows's Logical Disk Manager (LDM).
How is that achieved? How can I take a disk convered into a 'dynamic disk', slice a chunk of the space away from LDM, and create any type of regular GPT partition?
Alternatively, is is possible to go the other way around? I've already tried to create GPT partitions with relevant type GUIDs (one for LDM metadata and one for data) in order to provide a chunk of disk for Windows to use for LDM, but to no avail: Windows now sees the entire disk as an 'invalid dynamic disk' (but curiously manages to recognize an NTFS partition on the relevant disk and mounts it without problems; only
I'm interested in using the rest of the disk for other operating systems, including a chunk being given to Linux's LVM.
- Two 3TB disks
- Both contain one ~300GB Linux LVM partition (containing one LVM-managed mirrored volume) and one ~500GB HFS volume
- First disk contains one ~300GB NTFS volume.
- Both disks are currently 'basic'. (That is: normal, civilized GPT.)
- Due to the type of these GPT partitions (LVM, HFS), converting the entire disks into dynamic disks is unsupported (and would make the partitions unreadable by other operating systems).
- I'd like to devote ~300GB on both disks to Microsoft LDM
- I'd like Microsoft LDM to manage just its chunk of the disk.
- I would not like Microsoft LDM to even attempt to manage LVM partition (containing its LVM-managed ext3 volume) nor the HFS volume.
- This is possible with LVM.
- I'd like to avoid buying two additional Windows-dedicated disks just to get redundancy (mirroring is why I want LDM).
- The paragraph quoted seems to imply that one can cut out a chunk of the disk and dedicate to "UNIX".
- If one can dedicate just a portion of disk to LDM, that makes sense.
- If one must dedicate the entire disk to LDM and is supposed to carve out a partition dedicated to "UNIX", that seems unreasonable, as "UNIX" would not be able to boot from an LDM-managed volume, or would damage it in LDM's eyes. (Especially if it is striped, but even if it is mirrored in any way.)
- Because that is so unreasonable, I hope Microsoft did not mean: You can create an LDM-managed volume and boot "UNIX" off of this LDM-managed, possibly striped, volume.