Late 2009 iMac OS upgrade

I have a late 2009 iMac. I added a 1TB drive and maxed the ram. I used OCLP to install Big Sur. I wiped the drive after the required USB was created. The install did not go as planned. When I get to the install OS step it stalls. I tried several times. Wifi connected for first attempt and then wired for the last.

submitted by /u/SnooTigers159
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