netkas.org forum
July 10, 2020, 01:28:31 PM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News: Information for registering users http://forum.netkas.org/index.php/topic,2246.0.html
 
   Home   Help Search Login Register  
Pages: 1 ... 80 81 [82]
  Print  
Author Topic: Mac Pro Firmware Upgrade Utility Released!  (Read 2409729 times)
ivr
Not Newbie
*
Offline Offline

Posts: 7


« Reply #1215 on: May 08, 2020, 04:35:24 PM »

Figured it out. If you want to clean install Mac OS High Sierra, do not have the ethernet cable connected or wifi enabled! Otherwise you may get: "This copy of the Install macOS application is to old to be opened on this version of macOS."

Another crazy thing happened yesterday, I installed El Capitan than initiated HS upgrade from US within the OS. After installation completed it showed that Mojave was installed and not High Sierra. It looks like Apple is forcing installer to install Mojave instead of HS. Hope this helps someone.
Logged
Bunga-Bunga
Jr. Member
**
Offline Offline

Posts: 52


« Reply #1216 on: May 09, 2020, 11:34:24 AM »

Try setting manually date a few months/years back.

The problem is an expired certificate; you can't use older downloads after longer time.
Logged
ivr
Not Newbie
*
Offline Offline

Posts: 7


« Reply #1217 on: May 12, 2020, 10:55:05 PM »

Didn't need to set the date for High Sierra, I think that's for older Mac OS versions. For HS all I needed was to unplug the ethernet cable / disconnect wifi, otherwise installer forces Mojave. Strange and stupid, but it's true.

Logged
Pages: 1 ... 80 81 [82]
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!