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time machine blocks upgrade to Snow Leopard

I migrated from older G4 to a used IMac which had Leopard. Now Installer refuses Snow Leopard, with error code "Disc used by Time Machine." Possible previous owner used main drive for Time Machine backup site?

iMac, Mac OS X (10.5.8)

Posted on Jan 16, 2014 6:30 AM

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3 replies

Jan 16, 2014 7:23 AM in response to Axeman1020

I gather from other postings on Apple.com that I probably should have completely wiped the hard drive of my used IMac before installing my own files. I may still have to do that. I tried shutting down Time Machine, which I am using with an external drive. The previous owner apparently did not have an external drive.

time machine blocks upgrade to Snow Leopard

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