Possible Solution to "Grey Out" for "Use Boot Camp" partition
I was able to by-pass the "Grey Out" problem using custom installation (XP Only). Follow the custom installation steps; when asked to select a virtual hard disk option, select the "Do not add any hard disk" option. Toward the end of the OS Installation Assistant, under "More Options" deselect the checkbox "Start Windows XXX installation" since we don't need to reinstall windows.
After clicking "Finish" go back and edit the Virtual Machine and add a "Hard Disk" to the VM. Follow the "Add Hardware" steps and point it to your Boot Camp Partition.
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Not sure if this is part of the cause, but discovered this by accident. I have reinstall BC several times and have notice that the partition schema created by BC should not be modified. During Windows installation, I had deleted the Windows Partition and recreated in hopes of claiming the unused space created by BC; after this Parallels no longer sees the BC partition and I get the "Grey Out" problem.
Boot Camp default partition schema is the following for me:
{ GUID Table } | { Mac } | { Unallocated } | { Windows }
Going to reinstall BC later, will post any updates here.
Last edited: Dec 31, 2006