nostr:npub178h85fgemmdfrtwxq5uehw985m0ve7akcm60z9y5z845dd4hw5ds6rhyhr if it's failing at the end - after the file copy process is complete - i'm guessing that it's the drive itself that's failing, which is the most common thing on the 2011's (almost all with the same trashy 1TB seagoat). iirc, os x does some heavy cleanup at the end of the process which might be hitting some bad sectors on the hdd.

if it was an old (out of date, signature expired) installer, it would have failed at the start of the install instead.

mercifully, these use zero glue on the glass bezel - just magnets, and replacing the hdd is a 20 minute job!