Alternating BlueScreen swap, after 10.5.5 update!

[level42]

So, I tried to update my mac (as described in my sig) to 10.5.5, stupid me never backed up the PowerManagement, so it went all haywire.

 

I followed a guide from someone on the forum on how to fix it, It got me only so far, now I need your guys help!

 

Basically, when I boot my PC now, I get past the grey apple screen to the part where it changes over to a blue screen, from here, after a few seconds, it changes to a darker shade of blue with a loading icon on it, then back and forth endlessly.

 

Does anyone know what the cause is or any possible solutions? thanks much!

[level42]

Here is what "-v -x" tells me.

 

 

http://img385.imageshack.us/my.php?image=img0245gu5.jpg

[level42]

Here is what "-v -x" tells me.

 

 

http://img385.imageshack.us/my.php?image=img0245gu5.jpg

[MacNutty]

Might be a problem with your graphics kext, try using Titan.kext it worked for me when others failed.

[level42]

What do you mean?

 

How would I get/use the "titan.kext"

[level42]

Anyone else?

[JaS]

try disabling firewire in the bios. then boot -v -f.

[MacNutty]

Might be a problem with your graphics kext, try using Titan.kext it worked for me when others failed.

 

Google it and use kext helper to install it.

[level42]

I can't use KextHelper because I can't boot into my mac

 

I have dual booted windows vista if I can somehow do it from that.

[level42]

try disabling firewire in the bios. then boot -v -f.

 

Thanks, got me a tiny bit further this time, I got a mouse cursor this time (Only for about 2 seconds but it still counts) and I no longer have the swirly logo.

 

But its still the two blue screens.

[hecker]

Maybe you should try removing any video injector kexts you have installed. Like NVinject, NVkush or whatever you used.

You can achieve this by booting into single user mode (-s at darwin prompt), mounting your root drive (instructions are shown in the terminal when you boot in single user mode) and entering the following:

to make a backup of your extensions files (optional, if you know what you're doing):

mkdir /extensions_backup
cp -R /System/Library/Extensions/ /extensions_backup/

Remove the offending kext file by entering:

rm -R /System/Library/Extensions/your_kext_file.kext

 

Then reboot and enter "-f -v" (without quotes of course) at the darwin boot prompt to force a cache update.

[level42]

Maybe you should try removing any video injector kexts you have installed. Like NVinject, NVkush or whatever you used.

You can achieve this by booting into single user mode (-s at darwin prompt), mounting your root drive (instructions are shown in the terminal when you boot in single user mode) and entering the following:

to make a backup of your extensions files (optional, if you know what you're doing):

mkdir /extensions_backup
cp -R /System/Library/Extensions/ /extensions_backup/

Remove the offending kext file by entering:

rm -R /System/Library/Extensions/your_kext_file.kext

 

Then reboot and enter "-f -v" (without quotes of course) at the darwin boot prompt to force a cache update.

 

mkdir /extensions_backup
cp -R /System/Library/Extensions/ /extensions_backup/

 

This will make a back up of "ALL" the kext files right?

 

Also, how will I know which video drivers are specifically mine, I built this mac a LONG! time ago and the only thing I remember is what I wrote in my Sig.

 

Video Card: ATI HD2900XT (Sapphire) - NATIT for X2000 Series + HD2900xt pro Patch

 

Thanks for all the help so far guys

[hecker]

Remove the Natit.kext file. And yes, the command above backs up ALL of the extension files.

[level42]

Thanks, unfortunately I wont be able to test this for a few more hours, "I'm stuck at work here." I'll test it tonight and let you know thanks (~7PM EST)

 

Any other suggestions if this doesn't work are all still welcome.

[JaS]

Could be your decryption kext isn't loading if you use dsmos this could be why. boot -s and at the boot prompt type kextload /system/library/extensions/dsmos.lext if that loads then just type exit and it should now boot into the desktop. There is a script in the update that sets something on first boot that will cause the decryption kext not to load.

[level42]

Thanks again JaS, I will try this to.

[level42]

Appreciate the help guys, but I can't seem to do anything in Single User mode.

 

I am presented with:

 

Singleuser boot -- fsck not done
Root device is mounted read-only

If you want to make modifications to files:
 /sbin/fsck -fy
 /sbin/mount -uw /

If you wish to boot the system:
 exit

:/ root#

 

And its frozen there

 

I know I'm not making this easy but I really do appreciate the help.

[JaS]

Are you using usb or ps/2 drivers for your kb and mouse. The update might have undone your ps2 drivers. Try plugging in a usb kb. If you are using a usb kb then try enabling legacy usb support in the bios.

[level42]

I'm using a PS/2 keyboard and USB mouse, the keyboard seems to be frozen though, I can't change numlock or capslock or anything ....

[JaS]

I'm using a PS/2 keyboard and USB mouse, the keyboard seems to be frozen though, I can't change numlock or capslock or anything ....

 

the update killed the ps2 drivers. use a usb kb and mouse for now.

[level42]

DUHH ... that never even crossed my mind ... lol

 

Again, I'm at work till ~7pm EST but I will test when I get home, thanks

[level42]

Ok, so I got the USB keyboard working and I followed your steps exactly, both of you.

 

Now when I boot my computer I get a black screen, and every 30 odd seconds I see the first 25 pixels on the left side of the screen (from top to bottom) blink.

 

Now what should I do?

[level42]

Never mind, I fixed that black screen issue "I copied the powermanagement.kext back to my PC a while ago and forgot it in there, removed it and now its find"

 

HOWEVER!!!!

 

I can boot "Using -v -f -x" to a blue screen with a mouse cursor, then changes back to a black screen with something about "Login Window Application Started" then back to the blue screen, and back and forth endlessly.

 

Any ideas ?

[level42]

Never mind, I fixed that black screen issue "I copied the powermanagement.kext back to my PC a while ago and forgot it in there, removed it and now its find"

 

HOWEVER!!!!

 

I can boot "Using -v -f -x" to a blue screen with a mouse cursor, then changes back to a black screen with something about "Login Window Application Started" then back to the blue screen, and back and forth endlessly.

 

Any ideas ?

[JaS]

and your loading dsmos from the command prompt in single user ?