Time ago I installed an illegal copy of Snow Leopard (10.6) on my iMac 20" (early 2009), which previously had Leopard (10.5.8).
I was not aware that it would keep asking me for an Upgrade, but once I checked, the system blocked me for any future update.
I know that this is my fault, in fact I'm willing to buy the upgrade at $29, but what I would like to know is: Can I install it without having to format the drive and reinstall all the software?
i never installed iAtkos, i Deneb or stuff like that, and i used to know too that there is no licensing control, but last year whet 10.6 was out i downloaded a version of it and i installed it, since than it tells me that my mac have 10.6 installed (10.6 , no more) and if i check for updates after a while it tells me that there are no updates available to me, so i thought that it was a licensing issue.
hope it's clearer now