iMac 2007 24" 7.1 - Will not boot into MAC OS
Good morning fellow Experts, I am having issues with my iMac, I have done quite a lot of fault finding which I will document below and need your help to resolve this issue.
Fault:
On power up I hear the startup sound and Apple Logo appears on screen timer spins and then screen starts to flicker (mainly at the top) and then white screen for a while and then Apple Logo reappears and then it stays like that.
Background on checks performed:
Pressing Command+R does not go into internet/recovery
Pressing ALT does show Boot Manager
PRAM + SMC Resets both performed
Memory Modules swapped out to no effect
Different HDD's used over many restarts
When existing HDD removed and checked for Faults there was Lion OSX installed and Windows Boot Camp Partition
Failed attempts at resolving issue:
El Capitan USB Boot Disk used - Selected from Boot Menu but nothing loads
Lion USB Boot Disk used - Selected from Boot Menu but nothing loads
HDD put into MBP and Internet recovered to Mountain Lion and then placed into iMac but still no boot.
I am aware that there is a Firmware update available but not sure what version it's at.
I'm getting to the point where I think that this is more trouble than what it's worth :(
Your suggestions will be greatly received.
Thanks
Andrew
Fault:
On power up I hear the startup sound and Apple Logo appears on screen timer spins and then screen starts to flicker (mainly at the top) and then white screen for a while and then Apple Logo reappears and then it stays like that.
Background on checks performed:
Pressing Command+R does not go into internet/recovery
Pressing ALT does show Boot Manager
PRAM + SMC Resets both performed
Memory Modules swapped out to no effect
Different HDD's used over many restarts
When existing HDD removed and checked for Faults there was Lion OSX installed and Windows Boot Camp Partition
Failed attempts at resolving issue:
El Capitan USB Boot Disk used - Selected from Boot Menu but nothing loads
Lion USB Boot Disk used - Selected from Boot Menu but nothing loads
HDD put into MBP and Internet recovered to Mountain Lion and then placed into iMac but still no boot.
I am aware that there is a Firmware update available but not sure what version it's at.
I'm getting to the point where I think that this is more trouble than what it's worth :(
Your suggestions will be greatly received.
Thanks
Andrew
Edward Pamias
According to Apple Support Command + R will not work if you do not have a recovery partition.
Did you try Command + Option + R ???? If not power off.... turn it back on and hold those keys, this should bring you into internet recovery.
ASKER CERTIFIED SOLUTION
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@Eoin, I thought Internet Recovery was not available on Leopard, and Lion is when it was introduced? Unless what I am reading on Apple Support is wrong?
Andrew can look at the HDD with another Mac to see if there is a Recovery partition on the HDD .. but seeing as he upgraded the HDD to Mountain Lion and it still won't boot would indicate the problem lies elsewhere anyway.
ASKER
Hi Guys, I think that Eoin OSullivan may be right, I've tried most things that would normally resolve this issue.
What is strange is that I can boot rEFInd from a CD and the program loads okay (although just thinking about it, I haven't tried using this tool to boot the MAC OS Disk).
What is strange is that I can boot rEFInd from a CD and the program loads okay (although just thinking about it, I haven't tried using this tool to boot the MAC OS Disk).
ASKER
Thank you Eoin, you have verified what I already suspected.