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is there a way to install el capitan without internet and apple check?
I have tried various ways, but unfortunately none of them work: download el capitan from apple: http://updates-http.cdn-apple.com/2019/cert/061-41424-20191024-218af9ec-cf50-4516-9011-228c78eda3d2/InstallMacOSX.dmg
usb boot stick created: with windows, TransMac tool
after restart:
alt-cmd-p-r
cmd-s
change date date:0711141516
exit
format disc
start install

Unfortunately it always appears that an internet connection is required and when i do this i get the message that it does not work

Tetsujin
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Gardenzwerg
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  • See https://mrmacintosh.com/how-to-fix-the-recovery-server-could-not-be-contacted-error-high-sierra-recovery-is-still-online-but-broken/ - i cannot test whether this method might also work for El Capitan. – Tetsujin Feb 13 '24 at 18:12
  • What model Mac are you attempting to install to, and is there a good reason why you can't connect it to the Internet? – Andy Griffiths Feb 13 '24 at 20:19

1 Answers1

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From your abbreviated instructions, I think you did the following.

  1. Downloaded InstallMacOSX.dmg to a Windows machine.

  2. You used Transmac to transfer InstallMacOSX.dmg to a USB flash drive. Note that this flash drive would not be bootable. If you though so, you would be wrong. The procedure to create a bootable USB flash drive El Capitan installer is more complicated than just using Transmac. See this answer.

  3. Changed the date on the Mac. I assume you thought an earlier date is needed to complete the install. I believe Apple has updated the current InstallMacOSX.dmg file download so changing the date should not be unnecessary.

David Anderson
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