Stuck on boot screen with barred circle

[freezer2000]

I installed 10.10 2 days back and was facing challenges with the CPU running high on UserEventAgent and temp going high up to 90C. Tried this https://forums.macrumors.com/showthread.php?p=19200839&posted=1#post19200839 and when I rebooted it does not boot.

- Stuck at boot logo and after a while the apple logo changes to barred circle.
- When entering Safe Mode - stuck as waiting for root device.
- With Options key at boot, no Recovery partition visible
- CMD+R does not work either.

Any help will be greatly appreciated.

 

[iMacBooked]

Did you try resetting the PRAM?

 

[freezer2000]

Yeah I've tried resetting the PRAM as well...

 

[yeldarbnamdlog]

Have you by any chance, replaced your internal hard drive with a non-apple or OWC SSD, and then tried to enable TRIM using a 3rd-party app?

 

[kissmo]

I installed 10.10 2 days back and was facing challenges with the CPU running high on UserEventAgent and temp going high up to 90C. Tried this https://forums.macrumors.com/showthread.php?p=19200839&posted=1#post19200839 and when I rebooted it does not boot.

- Stuck at boot logo and after a while the apple logo changes to barred circle.
- When entering Safe Mode - stuck as waiting for root device.
- With Options key at boot, no Recovery partition visible
- CMD+R does not work either.

Any help will be greatly appreciated.

I had this thing when I installed trim enabler.

 

[0000757]

I installed 10.10 2 days back and was facing challenges with the CPU running high on UserEventAgent and temp going high up to 90C. Tried this https://forums.macrumors.com/showthread.php?p=19200839&posted=1#post19200839 and when I rebooted it does not boot.

- Stuck at boot logo and after a while the apple logo changes to barred circle.
- When entering Safe Mode - stuck as waiting for root device.
- With Options key at boot, no Recovery partition visible
- CMD+R does not work either.

Any help will be greatly appreciated.

Did you try accessing Internet Recovery if your computer has it? After pressing the power button, press and hold Option+Command+R This is only available on Macs that shipped with Lion or newer, and it will restore the factory OS that shipped (i.e. if your computer came with Lion, it will install Lion)

 

[freezer2000]

Yeah I have the Trim Enabler.

Is there anyway to resolve this?

In the meantime I have tried the Internet Recovery option and it is giving me the option to download and install the original version of Lion OS that the MBP came with. Anyway the trim enabler could be uninstalled from Recovery while I can still access it?