blinking cursor - no efi? or why i cant boot?

xan · #1 01-30-2008, 06:49 AM

hi all,

i installed my rev1 amd version dvd to a internal sata connected through sb600 chip from ati.
i tried it already with mbr and now i'm on guid.

after reboot the system shows a blinking cursor and do nothing. i can access my system only from booting with dvd and rd=diskXsY .
what is it? i tried to install efi but it didnt work. 2 weeks ago i successfully installed the same rev1 dvd on a external usb2.0 hdd on the same machine!
and after intallation i could successfully install and config efi ! and everything worked.

whats the problem with efi now? can someone help me please. and to zeph: best mac release ever! keep up the perfect work with your team.

specs:

amd x2 am2 3800+
msi k9a platinum with sb600 southbridge
4GB ram
3 satas internal
ati x1900XT

naquaada · #2 01-30-2008, 04:16 PM

Use MBR at first, GUID isn't working. You have to install the SB600 drivers somehow.

xan · #3 01-30-2008, 06:21 PM

my sb600 drivers are injected in the iso! they installs fine so i can see and use the sata at installation. but AFTER installation i cant boot without the DVD and rd=.... command

and as i said, mbr is not working either on the sata. same problem.

the curious about it: on the external usb2.0 hdd everything works fine with mbr & efi & sb600 drivers

naquaada · #4 01-30-2008, 06:27 PM

Have you already checked the wiki? It's described how to fix booting problems: http://osx86.wikidot.com/known-issues

xan · #5 01-30-2008, 06:36 PM

which point would help me? cant see a booting fix

Puttabong · #6 01-30-2008, 06:44 PM

xan, boot the DVD and use the Terminal to perform these steps:

This is how to fix booting for GUID + EFI!

## Replace X and Y according to your system.
## You can also check the diskXsX Id in Disk Utility, by selecting a Disk and pressing the Info Button.

## Explanation: p -> print; f -> flag; w -> write

Quote:

mount -uw /

Quote:

diskutil list

fdisk -e /dev/rdiskX

p

f X

w

y

Quote:

diskutil unmount /dev/diskXsY

cd /usr/i386/standalone/

umount -f /dev/diskXsY

./startupfiletool /dev/rdiskXsY ./boot_v8

dd if=./guid/boot1h of=/dev/rdiskXsY bs=512 count=1

diskutil unmount /dev/diskX

dd if=./guid/boot0 of=/dev/diskX bs=400 count=1

Reboot, enjoy

xan · #7 01-30-2008, 06:45 PM

ok will try thnx for step by step

xan · #8 01-30-2008, 07:53 PM

Quote:

[cite] Puttabong:[/cite]you have to boot DVD install routine to access terminal and diskutil! no -s or something like this!

This is how to fix booting for GUID + EFI! <----- not working with guid!

fdisk said that it cant finde MBR bla bla... so i decided to reinstall the whole sys with MBR! (remeber: now i'm on MBR!!!)

Quote:

mount -uw /

Quote:

diskutil list

fdisk -e /dev/rdiskX

p

f X (x = 1 ? for active?)

w

y

q

Quote:

diskutil unmount /dev/diskXsY

cd /usr/i386/standalone/ (you mean /usr/standalone/i386)

umount -f /dev/diskXsY

./startupfiletool /dev/rdiskXsY ./boot_v8 (hat to use this command from USB flash drive, have no boot_v8 in the /usr/standalone/i386/ ! )

dd if=boot1h of=/dev/rdiskXsY bs=512 count=1

diskutil unmount /dev/diskX

dd if=boot0 of=/dev/diskX bs=400 count=1

reboot

after this procedere i have a darwin loader (YES! first success)
but then i have a still waiting for rootdevice!

what do i miss? is my step by step wrong? Puttabong can u give a step by step for MBR? thnx in advance

Puttabong · #9 01-30-2008, 07:54 PM

Do you have MBR? This Tutorial was for GUID. I'll give the MBR commands in a second as well.

However, regarding "still waiting for root device": is your leopard hdd mounted as Master?

xan · #10 01-30-2008, 07:54 PM

what is better? make the system on GUID or MBR? a lot of say that MBR is less pain in config / install. is that right? as i said, some of the commands with fdisk don't work with guid system.