I purchased a used iMac. It has OS X Mavricks installed. I'd like to re-purpose it for my web designer to use here at my office, since she cannot easily run the Adobe suite on the Ubuntu machines we already have. So, I want to wipe all of the user data, essentially doing a "factory reset".
I do not have the login info to the machine.
I have tried the
cmd+r reboot and reinstalled OS X but the original user data is still there. I also tried the
cmd+opt+p+r thinking that user account info might be stored in NVRAM but that didn't seem to do the trick either (I know it's only supposed to be system settings like: time, locale, monitor res, etc. but thought that it was worth a shot).
Here are the steps I've already done: http://smallbusiness.chron.com/reboot-apple-imac-its-factory-settings-51261.html (Apple also explains the process here:https://support.apple.com/en-us/HT201314 but the instructions at Chron.com seemed easier to follow). In neither of these processes was I ever prompted for an Apple ID.
I have spent hours Googling and it seems that I can do a complete disk wipe and reinstall using a USB flash drive, but I cannot find a downloadable version of Mavericks anywhere. Apple is pushing Yosemite on the OS X page (http://www.apple.com/osx/) and doesn't seem to provide Mavericks anymore.
Furthermore, I am a Linux user and every machine I have available to me is running Linux (Ubuntu 14.04). I do not have, nor have I ever had, an Apple account.
Is this possible? Can I wipe all of the user data from this machine and start anew? Am I going to be required to create an Apple account to be able to use this machine?
An Apple ID is not required. I am now 10,000% certain of that.