Unable to boot into OSX

[Jaygrim]

Well some time last year I managed to get 10.4 running on my old rig. So I decided to get 10.5 a try on my new rig, to my surprise it actually went to the install screen.

 

Firstly I used Disk Utility tool on the DVD to erase my 200GB sata HDD, and used the "Mac OS Extended (Journaled)" setting and everything installed fine. I used the "Zephyroth AMD 10.5.2 Rev.1" DVD.

 

Now.. the problem I had before was "Error Loading Operating System" i tried the "cat /usr/standalone/i386/boot0 > dev/rdisk#s#" thing and it didn't do anything. I reinstalled and now whenever I try to boot into OSX, all I get is a flashing underscore. No errors, no restarts, just a flashing underscore.

 

EDIT: I've tried the Making Mac partition bootable commands:

 

sudo -s

fdisk -e /dev/rdiskX --->(X is the number of your HD, if you have only on its 0)

update

f X --->(X is the number of the partition where you installed Leopard)

w

q

reboot

 

but that didn't fix it =/

 

SPECS:

Asrock ALiveXFire-eSATA2

AMD Athlon 64 X2 Dual Core 5000+ Black Edition 2.60GHz (Socket AM2)

OCZ 4GB (2x2GB) PC2-6400C5 Dual Channel Vista Gold Series DDR2 (8GB soon)

Sapphire's Radeon X800GT

IDE Vistax32 40GB, SATA Backup 500GB, SATA OSX86 INSTALL 200GB