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Apple Computing Products:
macOS - Operating System
Snow Leopard and Upgrading OS on Mid 2011 I Mac
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<blockquote data-quote="pm-r" data-source="post: 1651489" data-attributes="member: 175845"><p>Hi, I have the same 2011 27" iMac other than yours must have been released prior to July 20, 2011</p><p>Mac OS X Lion, Initial release date, as mine was released in September and I had to request a copy of SL that I wanted to be able to use.</p><p></p><p>Anyway, I'd suggest you have two choices that I'd recommend:</p><p>- purchase a copy of Mac OS X 10.8 Mountain Lion for $20.00 that's available from the Apple Store.</p><p>- download a copy of Yosemite from the Apple site for free</p><p></p><p>But before doing so, I suggest making a partition or use an external drive and either clone your existing volume to it and then install the new OS X version on it, or do the install and use Migration Assistant to move your settings etc. to the new volume and then boot from it.</p><p></p><p>If it's really goofy or whatever, you'll have your original SL volume to boot from.</p><p></p><p>For cloning and backup, I use and prefer using Carbon Copy Cloner (CCC), well worth the money and to have a bootable backup.</p><p><a href="https://www.bombich.com" target="_blank">https://www.bombich.com</a></p><p></p><p>And a good move on the RAM upgrade, well worth it and your iMac will enjoy it and perform better as well, especially with the later OS Xs. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p></blockquote><p></p>
[QUOTE="pm-r, post: 1651489, member: 175845"] Hi, I have the same 2011 27" iMac other than yours must have been released prior to July 20, 2011 Mac OS X Lion, Initial release date, as mine was released in September and I had to request a copy of SL that I wanted to be able to use. Anyway, I'd suggest you have two choices that I'd recommend: - purchase a copy of Mac OS X 10.8 Mountain Lion for $20.00 that's available from the Apple Store. - download a copy of Yosemite from the Apple site for free But before doing so, I suggest making a partition or use an external drive and either clone your existing volume to it and then install the new OS X version on it, or do the install and use Migration Assistant to move your settings etc. to the new volume and then boot from it. If it's really goofy or whatever, you'll have your original SL volume to boot from. For cloning and backup, I use and prefer using Carbon Copy Cloner (CCC), well worth the money and to have a bootable backup. [url]https://www.bombich.com[/url] And a good move on the RAM upgrade, well worth it and your iMac will enjoy it and perform better as well, especially with the later OS Xs. ;) [/QUOTE]
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Apple Computing Products:
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Snow Leopard and Upgrading OS on Mid 2011 I Mac
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