transition to 10.8?

Discussion of issues related to OSX 10.9 (Mavericks) and all earlier versions of OS X.
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scottkjohns
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transition to 10.8?

Post by scottkjohns » Fri Dec 07, 2012 7:02 pm

my i-Mac is using 10.5.8. can I up grade to 10.8 or do I need a new machine? If this machine is okay, where can I buy 10.8?

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Richard Serkes
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Re: transition to 10.8?

Post by Richard Serkes » Fri Dec 07, 2012 8:16 pm

We need more information. Does your iMac run on a PowerPC CPU or is it an Intel? If Intel, which one? How much RAM does your iMac have?

You won't be able to go directly from 10.5.x to 10.8.x without loading one or possibly more of the intermediary OS versions because later versions use a lot of the existing code of the previous version.
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Stephen Hart
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Re: transition to 10.8?

Post by Stephen Hart » Fri Dec 07, 2012 10:32 pm

http://www.apple.com/osx/how-to-upgrade/

First check Step 1, to see if your Mac will run Mountain Lion.

The requirement to have Lion or a fully-updated Snow Leopard is just so you can download Mountain Lion. There are other ways to install it.
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Re: transition to 10.8?

Post by scottkjohns » Tue Dec 11, 2012 7:20 pm

Thanks. here's what my iMac tells me.
Model Name: iMac
Model Identifier: iMac9,1
Processor Name: Intel Core 2 Duo
Processor Speed: 3.06 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: IM91.008D.B08
SMC Version (system): 1.45f0
Serial Number (system): QP934098259
Hardware UUID: A8720F2E-D94F-55E8-833C-D81254FD1CF7

That's all I know. hope this helps.
Scott

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Stephen Hart
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Re: transition to 10.8?

Post by Stephen Hart » Wed Dec 12, 2012 3:29 am

Here's the info you need:

http://support.apple.com/kb/HT1758?view ... cale=en_US

iMacs 9,1 are all early 2009, so you're good to go.

If you're happy with its performance, all you need to do is upgrade. You might want to consider increasing the RAM, though.

Apple's authorized path is as follows:

1. Purchase Snow Leopard and upgrade to it. See this SMUG thread: http://www.straitmac.org/phpBB3/viewtopic.php?f=5&t=985
(You need Snow Leopard to access the Mac App Store.)
2. Buy Mountain Lion from the Mac App Store. It will download and install. Note that you will lose Rosetta and therefore won't be able to run any apps that require it. There's quite a lot of information in our Mountain Lion section.

Bypassing step 1. can be a bit tricky, but it's doable.
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Richard Serkes
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Re: transition to 10.8?

Post by Richard Serkes » Wed Dec 12, 2012 9:24 am

Adding more RAM would definitely increase performance but the procedure is not for the novice. OWC will sell you RAM at a good price and has excellent online videos that will walk you through the process. But if you're not doing serious photo editing or worse yet video editing your 4GB should suffice.

You can always add RAM later and if you're not comfortable eviscerating your iMac to do so you can have it done professionally.
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Stephen Hart
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Re: transition to 10.8?

Post by Stephen Hart » Wed Dec 12, 2012 10:22 am

No need for evisceration. iMacs, of that vintage at least, have a small RAM door at the bottom. A novice still might want some help.
"Design is not just what it looks like and feels like. Design is how it works."
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Richard Serkes
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Re: transition to 10.8?

Post by Richard Serkes » Wed Dec 12, 2012 10:49 am

Stephen Hart wrote:No need for evisceration. iMacs, of that vintage at least, have a small RAM door at the bottom. A novice still might want some help.
It has a RAM door? It must be older than I realized.
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Re: transition to 10.8?

Post by Stephen Hart » Wed Dec 12, 2012 12:19 pm

Only the latest 21" iMacs (Late 2012 13,1), the ones just shipping now, require you to open the case to access RAM. The 27" model (13,2) has a RAM door on the back under the base mount.
Both require removal of the LCD to replace the hard drive.

All the older iMacs have a small panel on the bottom edge held on with two trapped Phillips screws. It covers the RAM slots. Here's the OWC video guide:
http://eshop.macsales.com/installvideos ... 011_mem_m/

I've done this on my 2010 iMac. And a SMUG member replaced her own RAM after I diagnosed it as faulty:
http://www.straitmac.org/phpBB3/viewtop ... t=10#p3503
"Design is not just what it looks like and feels like. Design is how it works."
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