[Qemu-devel] using partition images

[Jim C. Brown]

This is a preliminary patch that adds support for using a single partition
image as a hard disk image.

Syntax is: qemu -hdX part:file

E.g. qemu -hda part:/dev/hda1

qemu will see a hard disk with a single partition on it. Reading appears to work
ok, I haven't tested writing yet.

Writing to the MBR is allowed, but this is a bad idea as changes to the MBR
will be lost the moment qemu shuts down.

Known Issues:

booting is not supported - this will require passing a separate bootsector.
system id of the partition is always W95 FAT32 (LBA).
having multiple partition images in a single hard disk is not supported.

-- 
Infinite complexity begets infinite beauty.
Infinite precision begets infinite perfection.

patch
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