So I'm trying to boot a yosemite installation from an 8GB USB with the dmg file I downloaded from the app store, but once I hit "option" during my mac's startup and choose the correct usb, I get the following error
"Cannot Install Yosemite on the Mac. Yosemite already has been installed"
This is of course false as I have OS X 10.7 and I'm trying to upgrade to 10.10
Any help or ideas?
Update: Per a suggest I've inputed the following code into my terminal:
pkgutil --packages | grep -i base ; uname -a ; sw_vers ; pkgutil --pkg-info com.apple.pkg.BaseSystemBinaries
Here was the Result:
com.apple.pkg.BaseSystemBinaries com.apple.pkg.BaseSystemResources Darwin *****-*****-MacBook.local 11.4.2 Darwin Kernel Version 11.4.2: Thu Aug 23 16:26:45 PDT 2012; root:xnu-1699.32.7~1/RELEASE_I386 i386 ProductName: Mac OS X ProductVersion: 10.7.5 BuildVersion: 11G63 package-id: com.apple.pkg.BaseSystemBinaries version: 10.7.0.1.1.1309412550 volume: / location: / install-time: 1436744136 groups: com.apple.snowleopard-repair-permissions.pkg-group com.apple.FindSystemFiles.pkg-group
Hopefully this give more insight into my issue.