>>Hi,
>>
>>I want to modify boot.ini to allow dual boot on a W2003 server so I know I need to add something like:
>>multi(0)disk(1)rdisk(0)partition(2)\WINDOWS="My second boot"
>>
>>But how can I discover the disk/partition info (all I know is the drive letter)
>>
>>I guess I can retrieve the information by starting a new installation procedure - IIRC that shows the existing drive information in the required format. But surely there's a simpler way?
>
>Disk Management will show you existing partitions (My Computer...right-click...Manage...Disk Management)
>
>They're shown in order, so you can just count up/down from your existing known partition number to configure the other one. As you probably know, hardware counters are zero-based.
>
>Some useful info in http://support.microsoft.com/kb/289022

Hi Al,

I'd read the link and also knew about the 'Disk Management' form - what I was missing was understanding how these map to multi(),disk() and rdisk() (partition was obvious enough). The best info I eventually found on this was at http://mirror.href.com/thestarman/asm/mbr/bootini.htm.

Turns out:
multi = drive controller number
disk = 0 (except for some SCSII configurations)
rdisk = physical hard drive number
partition = partition number.

Now all I have to do is put this into practice and render my machine unbootable (g)
Best,
Viv