Mac Pro won't boot

[tayh]

Hi all!

Yesterday I installed Yosemite on my 4.1 Mac Pro, everything went fine. today I enabled Trim with Trim enabler, I restarted and then I got a grey screen with a circle and a slash.

I tried to boot up in CMD > V mode, and got this.

https://dl.dropboxusercontent.com/u/1104426/IMG_9426.JPG

https://dl.dropboxusercontent.com/u/1104426/IMG_9427.JPG

I also tried Target mode with my MBP. My Boot SSD from the Mac Pro appears? But why can't it boot.

"still waiting for root device" What does it mean.

 

[hfg]

This may help to explain what happened and how to recover:


http://www.cindori.org/trim-enabler-and-yosemite/

 

[tayh]

Thanks!!

 

[tayh]

So no TRIM support on Yosemite

Looks like it isn't safe to disable kext-signing.