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An error has occurred downloading the update

I am selling my old MacBook Pro mid 2012 laptop. I followed the directions to erase the hard drive and reinstall found here (https://support.apple.com/en-us/HT208496). When I reinstalled the MacOS it went to what I assume was the original OS of the machine which is x. I was running macOS Sierra 10.12.6 and I would like to put it back to that. However, when I go to update the OS to get back to Sierra I do not see it as an option. It has "software update". When I click "update" it says "An error has occurred An error occurred while downloading the updates (102) I can't imagine why it won't let me go back to Sierra as I was just on that when I reinstalled. Any help would be greatly appreciated!


It's also taking a really, really long time to do a restart which is not normal for my machine. Any help on why that is?


MacBook Pro (13-inch mid 2012)

Processor 2.9GHz intel core i7

Memory 16 GB 1600 MHz DDR3

Graphics

currently since reinstall version 10.8.5



MacBook Pro 13″, macOS 10.12

Posted on Jul 18, 2020 12:43 PM

Reply
Question marked as Top-ranking reply

Posted on Jul 18, 2020 5:22 PM

See if you can upgrade to 10.11, 10.12, 10.13, 10.14, or 10.15, see sys requirements...


https://support.apple.com/en-us/HT206886

https://itunes.apple.com/app/os-x-el-capitan/id1147835434?ls=1&mt=12

http://updates-http.cdn-apple.com/2019/cert/061-41424-20191024-218af9ec-cf50-4516-9011-228c78eda3d2/InstallMacOSX.dmg


https://support.apple.com/kb/sp742?locale=en_US

https://itunes.apple.com/us/app/macos-sierra/id1127487414?ls=1&mt=12


https://support.apple.com/kb/sp765?locale=en_US

https://itunes.apple.com/app/macos-high-sierra/id1246284741?mt=12


https://support.apple.com/kb/SP777?locale=en_US

https://itunes.apple.com/us/app/macos-mojave/id1398502828?mt=12



macOS Catalina - Technical Specifications


General Requirements

  • OS X 10.9 or later
  • 4GB of memory
  • 12.5GB of available storage (OS X El Capitan 10.11.5 or later)*
  • Some features require an Apple ID; terms apply.
  • Some features require a compatible internet service provider; fees may apply.

Mac Hardware Requirements

For details about your Mac model, click the Apple icon at the top left of your screen and choose About This Mac. These Mac models are compatible with macOS Catalina:

  • MacBook (Early 2015 or newer)
  • MacBook Air (Mid 2012 or newer)
  • MacBook Pro (Mid 2012 or newer)
  • Mac mini (Late 2012 or newer)
  • iMac (Late 2012 or newer)
  • iMac Pro (2017)
  • Mac Pro (Late 2013 or newer)

https://support.apple.com/en-us/HT210190


https://apps.apple.com/gb/app/macos-catalina/id1466841314?ls=1&mt=12


How to upgrade to macOS Catalina – Apple Support


And caution on 10.15, to see which Apps will no longer work in 10.15 get Go64...


https://www.stclairsoft.com/Go64/

5 replies
Question marked as Top-ranking reply

Jul 18, 2020 5:22 PM in response to Pearljamluvr

See if you can upgrade to 10.11, 10.12, 10.13, 10.14, or 10.15, see sys requirements...


https://support.apple.com/en-us/HT206886

https://itunes.apple.com/app/os-x-el-capitan/id1147835434?ls=1&mt=12

http://updates-http.cdn-apple.com/2019/cert/061-41424-20191024-218af9ec-cf50-4516-9011-228c78eda3d2/InstallMacOSX.dmg


https://support.apple.com/kb/sp742?locale=en_US

https://itunes.apple.com/us/app/macos-sierra/id1127487414?ls=1&mt=12


https://support.apple.com/kb/sp765?locale=en_US

https://itunes.apple.com/app/macos-high-sierra/id1246284741?mt=12


https://support.apple.com/kb/SP777?locale=en_US

https://itunes.apple.com/us/app/macos-mojave/id1398502828?mt=12



macOS Catalina - Technical Specifications


General Requirements

  • OS X 10.9 or later
  • 4GB of memory
  • 12.5GB of available storage (OS X El Capitan 10.11.5 or later)*
  • Some features require an Apple ID; terms apply.
  • Some features require a compatible internet service provider; fees may apply.

Mac Hardware Requirements

For details about your Mac model, click the Apple icon at the top left of your screen and choose About This Mac. These Mac models are compatible with macOS Catalina:

  • MacBook (Early 2015 or newer)
  • MacBook Air (Mid 2012 or newer)
  • MacBook Pro (Mid 2012 or newer)
  • Mac mini (Late 2012 or newer)
  • iMac (Late 2012 or newer)
  • iMac Pro (2017)
  • Mac Pro (Late 2013 or newer)

https://support.apple.com/en-us/HT210190


https://apps.apple.com/gb/app/macos-catalina/id1466841314?ls=1&mt=12


How to upgrade to macOS Catalina – Apple Support


And caution on 10.15, to see which Apps will no longer work in 10.15 get Go64...


https://www.stclairsoft.com/Go64/

Jul 18, 2020 8:58 PM in response to Pearljamluvr

If your mac is at the moment running Mac OS X 10.8.5 Mountain Lion you can upgrade directly

to macOS Sierra. Do not use Apples Recovery Servers as the copy there has an expired certificate

and will not install.

Get it here,

How to upgrade to macOS Sierra - Apple Support

Go to Section 4 and click on Get macOS Sierra.


This downloads InstallOS.dmg to your Downloads folder.


The next section can only be done on a mac that is capable of running Sierra,

a mac that came preinstalled with an OS later than Sierra will refuse to do the next bit.


When downloaded open to InstallOS.pkg, double-click on

that and an installation window will open, this does not install Sierra

but converts the InstallOS.pkg to the Install macOS Sierra.app which 

you will find in your Applications folder.


 (If the installation window asks which disk you want to install to, you must pick 

the disk that you are booted to at the time. Not any internal or external disk that 

you want to eventually install Sierra on, that is for later.)


To start the installation of Sierra double click on the Install macOS Sierra.app.


The copy of the install app self deletes after installing Sierra, so make sure you keep a copy of the InstallOS.dmg

if you need it in future, or you could just make a copy of the Install OS X Sierra.app prior to installing and moving it to

an external drive for safe keeping. 

An error has occurred downloading the update

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