Senenmut Posted July 13, 2015 Share Posted July 13, 2015 Hi, Last year I installed Yosemite on my E6230. It was fun to do, but it took a lot of time to get everything working. Is there a way to upgrade my current installation to Mavericks or even El Capitain? If so, is there a way to do that without starting from scratch? Link to comment Share on other sites More sharing options...
Administrators Hervé Posted July 13, 2015 Administrators Share Posted July 13, 2015 1st of all, Mavericks would be a "downgrade" since it preceded Yosemite. You can "upgrade" an existing installation by doing a fresh installation over the existing one. The new OS will overwrite the existing installation but will retain all applications and user & data files. El Capitan 10.11 is only at beta stage at the moment, so you may want to wait until it's officially released before you install it. I also recommend you make a full back of your existing Yosemite installation (a partition image for instance or a disk clone) before you start anything. Link to comment Share on other sites More sharing options...
Senenmut Posted July 13, 2015 Author Share Posted July 13, 2015 Ok, thanks! I currently have 10.9.5 so to summarize: If I want to upgrade to 10.10, I need to backup, build a new USB installer with 10.0 and then install it on my laptop? Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted July 13, 2015 Moderators Share Posted July 13, 2015 10.9.5 = Mavericks Yes, you should backup before doing any upgrade just incase of any failure. You can see my yosemite guide here, bootpack is in post # 3. Link to comment Share on other sites More sharing options...
Hologos Posted October 27, 2015 Share Posted October 27, 2015 You can "upgrade" an existing installation by doing a fresh installation over the existing one. The new OS will overwrite the existing installation but will retain all applications and user & data files. It means that I follow the guide but skip the part when formatting the HDD? What if previous instalation uses Chameleon and the new one uses Clover? Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted October 27, 2015 Administrators Share Posted October 27, 2015 with a properly configured clover you can upgrade directly from the app store app you do not need a usb pen drive. Link to comment Share on other sites More sharing options...
Hologos Posted October 28, 2015 Share Posted October 28, 2015 I meant the current installation uses Chameleon but I want to update my Yosemite + make it using Clover. Link to comment Share on other sites More sharing options...
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