Timeline for How can I download an older version of OS X/macOS?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 5, 2019 at 22:33 | comment | added | Wowfunhappy | BTW, other reasons non-developers might want or even need to downgrade: The new OS isn't compatible with a critical app or 3rd party driver; the new OS has a bug that critically breaks your workflow; the new OS performs poorly on your hardware. | |
| Nov 5, 2019 at 22:26 | comment | added | Wowfunhappy | If the EFI is wrong, the old OS just won't boot, and your new OS will still work. If you downgrade your EFI (which can be more difficult), all you'd need to do is upgrade your EFI again, which Apple does automatically. I've done all of these things a lot, and I'm not seeing a scenario where the user could unintentionally screw themselves. | |
| Nov 5, 2019 at 22:06 | comment | added | Wilfred Smith | @Wowfunhappy sigh. Updating the OS also updates EFI and the recovery partition. With a bad/wrong EFI, you can’t boot or do network recovery. | |
| Nov 5, 2019 at 14:34 | comment | added | Wowfunhappy | "Please, please, please don't try to install a version of OS X that predates your machine; there may not be a way to get you back to the future." Huh? That's not true at all—you can always boot from a USB, and usually do network recovery. Worse case scenario you need to find another machine to make the USB. | |
| Oct 29, 2019 at 8:07 | history | answered | Wilfred Smith | CC BY-SA 4.0 |