Unable to find driver for this platform \ ACPI\

Does anyone know exactly what is happening in this picture? I've seen the exact same white screen with black verbose boot info along with OS that will no longer boot.

I don't understand how the black backgrounded text with a white boot screen would be anything that supposed to happen..It almost seems like the computer is being tricked into thinking its in single user but is using the console user with some loginwindow exploit?

Hi. It looks like a crash dump from an early point in the OS X startup sequence, before the normal services are started. Unix boots like a single-user, terminal-only system, like MS-DOS did before Windows. And the system crashed while that initial system was still running.

Same here after the updates today.

The only solution I found, press an hold Command+r

Same here after the updates. :-(

...to save you data: make a FireWire connection with another Mac, hold T on start, now you see the HD on the other Mac finder and you can Save you Data. After that make a fresh install. Good luck!

also happened to me, just ran the update and now my Macbook won't start right in the middle of exam time :/

GREAT :/

Same after this morning updates. Now I connected an external usb HD with an old Leopard installation. Starting with OPT pressed and selected, as boot, the LeopardHD I can see all my data on the internal Lion HD !!

Maybe you can use this method to save last data ....

(I continued my experiments ...)

First of all, good luck fellow victems... I've been a mac user for over 10 years and never had such a severe problem (*** apple?)

Anyhow. Started up my MacBook Pro with cmd+ r and selected a copy on TimeMachine of this morning. In 8 hours time, when the backup is restored, i know what the damage is. So far so good

Same problem here. Updated today's package including Thunderbolt. Have tried re-booting many times - Command+R not responding. Holding Shift Key at re-boot, not responding. Just grey screen with advise "You need to restart your computer. Hold down the Power button until it turns off, then press the Power button again".

Oy-Vey! Send HELP!!

Same here after the updates today. What happen?

This is a problem with the Thunderbolt Update, and the only option for fixing it is to revert the update. Here is how to do this: http://reviews.cnet.com/8301-13727_7-57451440-263/thunderbolt-update-plaguing-ma cbook-pros-with-kernel-panics/

I found the solution, thanks to MrE_the_Great (read following cut and paste)

I'm glad it worked out. I'll put the steps below again for others who join this discussion late and to clarify as I was typing on a phone last night while my MBP was re-installing.

1) Hold in command-r while rebooting (or from cold start) to boot to the recovery partition.

2) Chose re-install mac osx

3) Enter appleID credentials

4) After the re-install is complete (may take a while depending on your intenet connection etc) all your files, preferences, and software will be there, you shouldn't lose anything.

5) DO NOT reattempt the Thunderbolt update. You can update the iPhoto and other updates that Software Update finds...just DO NOT check the Thunderbolt one or you will be at step one again.

for more information go here https://discussions.apple.com/thread/4020399?start=60&tstart=0

same here:

applying the combo update via Firewire to the faulty mac worked for me too:

http://support.apple.com/kb/DL1524

That update was clearly not the best move in the world, Apple....

Bram

never expected this from apple.

I have my macbook pro as my only computer and this thing has rendererd it useless.

shame on you apple for this.