Help with installing oclp on a iMac with dead USB ports

Hey guy's! I have an old iMac 2011 that had Windows running on some grotesque way, decide to go back on Mac Os, and all the shit got down the hill. All my USB ports, that worked on windows, now don't work at all for the majority of things, one time or another it recognize my USB keyboard, but if I plug some external drive of any sort, nothing.

I've been trying to install Monterey using oclp, but I can't use any external drive as mentioned, splitting the drive didn't get to anywhere too as oclp didn't recognize the other partition as a drive. There are any other way to proceed? Like using a secondary internal drive or a FireWire cable?

submitted by /u/reinardstrauss
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