"Chain Boot Error" and "MBR Error 2"

[Calamari]

Hello everyone!

 

I'm a newcomer in things like mac and OSx86 and have encountered a problem.

 

This is a situation so far: I installed successfully MacOSX 10.4.8 on my centrino notebook on the second partition right after the WinXP partition. Unluckily I was forced to reinstall WinXP. The problem is, that I cant correctly dualboot my macOS system.

 

If winXP partition is active, it will load winXP. There lies the chain0 from the iso which i should use. (c:/chain0)

 

So if I write c:/chain0="Mas OSX" in my boot.ini, and choose this partition to boot, then I get an "Chain Boot Error". I think, the bootsector of my macos partition must be defected by the reinstall of XP, or not?

 

If I boot with macOS partition as active, then I get "MBR Error 2".

It's some kind of strange that when I put in my MacOS InstallDVD it boots my MacOS Partition correctly. Why is that?

 

And how can I repair my bootsector of my MacOS, if this is the reason?

 

Thanks for help,

Greets Calamari

[srs2388]

Hey, This may not be the 'correct' way about doing it.

but here is what might help.

go to windows, click run.

type

diskpart
list disk

after it list them select the disk you want to install it on.

select disk [number of disk]

without the ['s

then

create partition primary id=af

then

active

 

if it says something like cannot create.. you need to delete the partition.

control panel

administrative tools

computer management

storage

disk management

 

find the drive you are installing OS on

ONLY IF YOU ARE INSTALLING ON A SPARE HARD DRIVE

click the "X" and it deletes it.

 

then do the commands I said.

 

I hope this helps.

[Calamari]

i know what you mean, but I already have MacOS installed and I dont want to delete it if there is another way. And there must be one, or not?

 

some way to repair boot sector without deleting partition?

[srs2388]

hmmm just do this...

make sure it's active... by doing the diskpart thing.

just select your drive where OS is installed then the partition...

then type active... it might boot then