10 Replies Latest reply: Oct 7, 2011 4:43 AM by G Bartels
John P. Level 4 (1,145 points)

I'm having this issue when I try to re-install Lion on my iMac, boot into Recovery Mode....run "Reinstall Mac OS X Lion," it asks me to authenticate with App Store.... I enter my credentials, and it pops back "unknown error occured."


The iMac is hard-wired and able to use the Internet via Safari (in Recovery Mode). I have replicated the issue on two Macs (Macbook Pro, iMac) and it seems I am not able to re-install Lion on either of them.


Has anyone had this issue?  Please advise, thanks.

iMac, Mac OS X (10.6), 4GB RAM