MP 1,1-5,1 Install Big Sur without Login

[Bobbych]

I have been using my 5,1 with BIG SUR as an unsupported MAC for a while now, but I have sold this now via Ebay. my problem is, it uses opencore to run Big Sur, and I am not sure how I can wipe the HDD, and install BIG SUR again without myself logging in. I want to send the machine to its new owner with a fresh copy of Big Sur, without my account in it

is there are way to install Big Sur on a 5,1 without the need to login, to run the pather?

TIA

 

[h9826790]

I have been using my 5,1 with BIG SUR as an unsupported MAC for a while now, but I have sold this now via Ebay. my problem is, it uses opencore to run Big Sur, and I am not sure how I can wipe the HDD, and install BIG SUR again without myself logging in. I want to send the machine to its new owner with a fresh copy of Big Sur, without my account in it

is there are way to install Big Sur on a 5,1 without the need to login, to run the pather?

TIA

Boot to recovery, format (Erase) the exsiting Big Sur "partition" (I say again, just the partition, NOT the whole HDD) to APFS. This will keep the OpenCore on the EFI partition, but remove everything (including the existing Big Sur) on the HDD.

Then you can re-install a clean Big Sur from recovery partition. Once installation completed, do NOT create any account, do NOT login anything. Just shutdown the Mac.

If you are going to sell it, you better try another cold boot, make sure it show you the welcome screen, and ask you to create account. Once you can see that, shutdown, and the cMP is now ready to go.

 

[Macschrauber]

I install a fresh copy of the OS when I see a machine and make just a new user with password "test"

so the new owner can play with it and make his own user and delete the test user.

you will need to do some tests, I would not leave the new owner with an untested patched system.

works...

 

[Bobbych]

Boot to recovery, format (Erase) the exsiting Big Sur "partition" (I say again, just the partition, NOT the whole HDD) to APFS. This will keep the OpenCore on the EFI partition, but remove everything (including the existing Big Sur) on the HDD.

Then you can re-install a clean Big Sur from recovery partition. Once installation completed, do NOT create any account, do NOT login anything. Just shutdown the Mac.

If you are going to sell it, you better try another cold boot, make sure it show you the welcome screen, and ask you to create account. Once you can see that, shutdown, and the cMP is now ready to go.

That wold be great, but i have already formatted the whole drive. so now i am in the process of installing High Sierria again, and will then install OC and Big Sur, and try your steps