Issues While Attempting to Clean Install Yosemite onto 2010 iMac 27"

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endlessct9a Author

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Issues While Attempting to Clean Install Yosemite onto 2010 iMac 27"

Having a number of issues trying to clean install Yosemite onto a 2010 iMac 27.

The original 1TB HDD was about to die so I upgraded the hard drive to a Crucial SSD, via an Apple Authorized shop
Memory was also upgraded to 16GB (from the original 4GB)
The install process won't finish, as I get a disk error message from the computer
Since there's no fan control cable attached to the HDD anymore, the fan is on constantly (but I know this is a known / common issue so I will be fixing it via an app like HDD Fan Control)
The installation process keeps starting over

What is causing this installation issue? How can I fix and move forward?

Thanks in advance for help anyone can provide.

Posted on Mar 4, 2015 4:52 PM

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Answer 1

endlessct9a Author

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Mar 4, 2015 6:00 PM in response to endlessct9a

I've also tried an alternate method of installing - installing Yosemite onto an external hard drive then cloning this drive onto the SSD installed on the iMac. The computer keeps rebooting. This is the message that pops up. Growing increasingly frustrated. Is this a hardware issue related to the new SSD?

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Answer 2

babowa

Level 9

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Mar 4, 2015 6:12 PM in response to endlessct9a

That looks like a kernel panic - not sure though how that could happen on an empty hard drive. Did you format the drive for Mac before installation?

OS X Mavericks: If your Mac restarts and a message appears

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Answer 3

endlessct9a Author

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Mar 4, 2015 6:19 PM in response to babowa

I did indeed. I went into disk utility and formatted the SSD before installation. Could the fact that the fan is on all the time - due to lack of a sensor connection to the SSD - cause these system restarts, as the system fears the hard drive is on the verge?

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Answer 4

babowa

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Mar 4, 2015 7:08 PM in response to endlessct9a

Frankly I don't know, but I guess it could. My only experience with an SSD replacement was my MBP where I cloned the system to the new SSD in an external enclosure and then simply swapped drives. Hopefully someone else will chime in.

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Answer 5

endlessct9a Author

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Mar 4, 2015 7:37 PM in response to endlessct9a

Weird... when I try to restart the entire process, I get this message while trying to erase the drive from disk utility:

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Answer 6

babowa

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Mar 4, 2015 7:53 PM in response to endlessct9a

What are you booted from when you are doing this? Are you in recovery mode?

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Answer 7

endlessct9a Author

Level 1

16 points

Mar 4, 2015 8:43 PM in response to babowa

Yup. Doesn't seem like I'm going to find a solution. Tried everything I can think of... Wondering if it's an issue above and beyond just the hard drive. Motherboard? No clue just yet...

Incidentally, I'd like to do a bunch of resets (including PRAM) but don't have a Mac keyboard. I have a POS Windows keyboard. Anyone the equivalents for the Option and Command buttons?

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