I have been having boot problems on my iMac 27' 2011 for wite some time and I have tried to 'zap the PRAM' when the reset cycle is complete, the mac powers down and when I try to boot it back up it is starting the PRAM zapping cycle again. I need help urgently as I ned o get things complete on the mac ASAP
THANKS
DAFYDD
iMac (27-inch Mid 2011), OS X Mountain Lion (10.8.3)
Try this. Open Terminal in Applications>Utilities. Copy/paste only the following and hit return.
sudo nvram boot-args=""
To run this command you will be asked for your admin password, which won't appear in any form when you enter it. Hit return again. You will also be given a warning about using sudo (root privileges.) Keep going.
Try this. Open Terminal in Applications>Utilities. Copy/paste only the following and hit return.
sudo nvram boot-args=""
To run this command you will be asked for your admin password, which won't appear in any form when you enter it. Hit return again. You will also be given a warning about using sudo (root privileges.) Keep going.
How can I do that if it doesn't boot. It just Zapps the pram and then turns off. When I urn it back on it zaps the pram again and I am stuck in an endless loop
I thought it was booting, but always from a PRAM reset. In that case, try Repair Disk from Disk Utility. Boot to the recovery partition to get DU, CMD-R.
Or try an SMC reset.
Why is my iMac repeating the PRAM reset constantly?
