Can't boot OSx86 with grub

[z123]

I installed osx reading "Install On A Partition Simple And Accurate"

 

In menu.lst i have:

title MacOSX

root (hd0,X)

chainloader --force +1

 

When i try to boot i recive this messages:

Filesystem type unknown, partition type 0xaf

Error loading bootloader

 

Do you have any idea?

 

Thanks

[Zeph]

Why root (hd0,X) ???

[Elv13]

you need to farmat the partition type AF with the ubuntu cd, this is how to fix this error

[z123]

you need to farmat the partition type AF with the ubuntu cd, this is how to fix this error

 

# fdisk /dev/sda

 

The number of cylinders for this disk is set to 30515.

There is nothing wrong with that, but this is larger than 1024,

and could in certain setups cause problems with:

1) software that runs at boot time (e.g., old versions of LILO)

2) booting and partitioning software from other OSs

(e.g., DOS FDISK, OS/2 FDISK)

 

Command (m for help): t

Partition number (1-8): 8

Hex code (type L to list codes): AF

 

Command (m for help): p

 

Disk /dev/sda: 250.9 GB, 250999111168 bytes

255 heads, 63 sectors/track, 30515 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 

Device Boot Start End Blocks Id System

/dev/sda1 * 1 1275 10241406 7 HPFS/NTFS

/dev/sda2 1276 30514 234862267+ f W95 Ext'd (LBA)

/dev/sda5 1276 3100 14659281 83 Linux

/dev/sda6 3101 3132 257008+ 82 Linux swap

/dev/sda7 3133 27965 199471041 7 HPFS/NTFS

/dev/sda8 27966 30514 20474811 af Unknown

I don't understand howto make my partition "AF" type.

Why root (hd0,X) ???

That's no problem, X is my partition no.