Luthraz Posted February 4, 2012 Share Posted February 4, 2012 I am trying to upgrade from a Snow Leopard install to Lion and am stuck getting "This disk cannot be used to start up your computer." when attempting to run the Lion "Install Mac OS X" program. I've been googling for a solution to this for about an hour and can't find anything other than changing the partition size. On my disk I have what I assume are partitions for Chameleon. The drive I have Snow Leopard installed on includes the main OS X partition at 999.86 GB, disk1s3 at 1MB and disk1s4 at 133.20 MB. I've also read to try reinstalling Chameleon, but I am unsure how to do this without messing up my install. I am using the Gigabyte G41M-ES2L Motherboard and have a 3.16 Core2Duo processor. Any help you all can provide for this would be greatly appreciated as I'm not sure where to go from here, other than giving up. Link to comment https://www.insanelymac.com/forum/topic/275506-stuck-lion-install-this-disk-cannot-be-used-to-start-up-your-computer/ Share on other sites More sharing options...
Luthraz Posted February 4, 2012 Author Share Posted February 4, 2012 Apologies, again. Again I have resolved my own issue. I booted off the USB drive and was able to repartition the disk from there! Just an FYI for all those out there that may run into this, make sure you boot off the install disk to resize the drive. Link to comment https://www.insanelymac.com/forum/topic/275506-stuck-lion-install-this-disk-cannot-be-used-to-start-up-your-computer/#findComment-1792902 Share on other sites More sharing options...
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