Can't get past a grey "you need to restart your computer screen"

[swatts89]

Hello,

I have a few month old iMac 27" i7 quad core for music use and did an update this morning which consisted of an itunes update and update to the screen firmware and two other things I can't remember. Do the usual install and restart business and am now met with the following error:

------------------------------------------------------

panic(cpu 0 caller 0x558271): "Unable to find device driver for this platform: \"ACPI". \n"@/SourceCache/xnu/xnu-1504.3.12......................

Debugger called: <panic>

Backtrace (CPU 0) , Frame: Return Address (4 potential args on stack)

7 lines of numbers and letters (please let me know if you need these)

BSD process name correspoding to current thread: Unknown

Mac OS Version:
Not yet set

Kernal Version:
Darwin Kernel Version 10.3.0...............

System uptime in nanoseconds: 322691563

------------------------------------------------------------

This is on the grey screen with the multi lingual "you need to restart your computer message"

I have tried a few different suggestions I have found on other threads about holding a certain key to start in safe mode or something to that effect but nothing has worked.

I have inserted the OSX install dvd that came with the computer and restarted but that did nothing and now I cannot eject it.

I have backed up a lot of the stuff on there but it will be a huuuuuge inconvenience if I lose the data on this thing.

Any help is greatly appreciated!

Cheers,
Stephen

 

[swatts89]

Holding shift on startup bypasses the screen and allows me to eject the disk and boot in safe mode or whatever it's called but the bar down the bottom fills up and I'm just left with the rotating bars and the apple logo.

 

[PBear]

The "you need to restart your computer screen" message is called a Kernel Panic. Take a look at this link on Resolving Kernel Panics.

 

[analogueheart]

Hi,

I've just got this too. I'm running a Quadcore Mac Pro also mainly for music. Updated a couple of my plug-ins this evening and also possibly iTunes (I can't remember if I did ore not). Just before I closed down, the hard disk was really hammering it (so much so, I was struggling to do a simple track export in Cubase). On restart - up popped the message. Shift and boot has taken me to spinning bars of infinity...

Think I'm going to have to check for a duff kernel extension in the plug-in installs. Would anyone how would one best go about this, as I can't get past the boot up...

Thanks!