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I Mac 2008 OS X El Capitan, temporarily unavailable

I bought I Mac early 2008, second hands, trying to install OS X El capital, it shows item is temporarily unavailable. thanks for your help


Windows, Windows 10

Posted on Jun 8, 2021 5:20 PM

Reply
Question marked as Top-ranking reply

Posted on Jun 8, 2021 10:42 PM

Are you trying to reinstall the OS from Apples Recovery Servers..

If you are using another method please describe what you are using.


The certificates for several of Apples OS's expired in October 2019, Apple haven’t bothered getting these updated on 

their Recovery Servers with valid certificates. 


This may be the problem you are experiencing. 


Try this workaround, we are going to set the time and date on your mac to a date previous to the expiry date of the certificates.


Connect your mac to your router via cable, not WiFi


Boot to your Recovery HD, click on Utilities in the menubar select Terminal.


Make sure WiFi is switched off, it can reset the date back to today.


Enter a new date, for example or just copy and paste


sudo date -u 011421002017


press Return

enter your password

press Return


If Terminal returns an error saying sudo : command not found, then try again without sudo.

just enter 


date -u 011421002017


press Return


You won't be prompted for a Password if you did not need to use sudo


Once the date has changed you can quit Terminal.


Now try downloading the OS.

Click on Install OS X, press Continue.


If this works then when the OS is installed and booted up you can Open System Preferences> Date & Time

and reset the time back to today.

2 replies
Question marked as Top-ranking reply

Jun 8, 2021 10:42 PM in response to anabelle033

Are you trying to reinstall the OS from Apples Recovery Servers..

If you are using another method please describe what you are using.


The certificates for several of Apples OS's expired in October 2019, Apple haven’t bothered getting these updated on 

their Recovery Servers with valid certificates. 


This may be the problem you are experiencing. 


Try this workaround, we are going to set the time and date on your mac to a date previous to the expiry date of the certificates.


Connect your mac to your router via cable, not WiFi


Boot to your Recovery HD, click on Utilities in the menubar select Terminal.


Make sure WiFi is switched off, it can reset the date back to today.


Enter a new date, for example or just copy and paste


sudo date -u 011421002017


press Return

enter your password

press Return


If Terminal returns an error saying sudo : command not found, then try again without sudo.

just enter 


date -u 011421002017


press Return


You won't be prompted for a Password if you did not need to use sudo


Once the date has changed you can quit Terminal.


Now try downloading the OS.

Click on Install OS X, press Continue.


If this works then when the OS is installed and booted up you can Open System Preferences> Date & Time

and reset the time back to today.

I Mac 2008 OS X El Capitan, temporarily unavailable

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