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type: diskutil list to return a list of drive write down your os x drive number such as rdiskXsY where x and y are numbers i will use x and y in these instructions just substitute accordingly.

 

fdisk -e /dev/rdiskX

 

update

 

f Y

 

w

 

y (as in yes not as in your drive letter)

 

q

 

reboot

 

and see if that works

ah crud try switching your os x boot drive back to windows one. Perhaps it has written the mbr there. If it all fails i have one last thing you can do but it may make XP un bootable without some serious tweaking on OS X's part. Il see what i can dig up for ya!

Ok, so I just erased my Hard drive once again, and did a complete format of it of Mac OS X Journaled (extended) and installed os x 10.5, the install went perfectly, and I rebooted, hit F8, typed -s and it reloaded... then I went to the command prompt and typed in all the commands, and they went smoothly, but then it went to reboot...

 

Question 1: Should I leave the disk in the drive, and boot the installation back up?

 

Question 2: I took the disk out after the reboot, tried to reboot from the hard drive that Mac OS is on and all I get is a black screen with a cursor. What should I do?

 

Thanks guys!

Well you can configure the startup file tool. This is a sure fire way to boot mac os x however i have no idea of its dual boot functionality so your best off doing it on a standalone drive.

 

Follow These instructions. Download this and extract the three files contained within onto a removable media of some variety and put them in a folder called bootfix. Make sure the name of the media is easy to remember and doesn't contain spaces or special characters.

Insert the drive into your machine with mac os x on it.

Open terminal from dvd installer menu.

 

Activate the partition using the commands i gave you earlier.

 

Then follow these to the letter!

 

cd /Volumes/name_of_removable_media/bootfix/

 

./dd if=/usr/standalone/i386/boot1h of=/dev/rdiskXsY bs=512

WHERE XsY IS THE DRIVE NUMBER FOR YOUR MAC OS X DRIVE

 

umount /Volumes/name_of_Leo_drive

 

./startupfiletool -v /dev/rdiskXsY /usr/standalone/i386/boot

WHERE XsY IS THE DRIVE NUMBER FOR YOUR MAC OS X DRIVE

 

./bless -device /dev/diskXsY -setboot -verbose

WHERE XsY IS THE DRIVE NUMBER FOR YOUR MAC OS X DRIVE

 

reboot

 

Fingers crossed that should work!

Hope it helps

 

Agent-Squirrel

in theory yes! If that fails then i am truly stumped.

 

EDIT: I empathise with your problem as i had it myself but if it boots to the grey apple with pin wheel then hangs, at least its something and i may be able to do more from there.

That may be because you have swapped the drives around multiple times. This will mess up the drive ordering the bios and the MBR ordering. So your bootloader is trying to boot off the wrong drive.

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