That means your hosts file is as old as your computer. I don't see how the hosts file has anything to do with it unless it's corrupt or its original entries were changed for some reason An OS upgrade does not overwrite the hosts file, so you do not start out with a fresh copy. Meanwhile, I successfully updated a 2012 MacBook Pro and a 2017 iMac just by disabling SIP for the duration of the installation. If so, they will correct that oversight in the next couple of working days. My speculation is that Apple developers necessarily run with SIP disabled, and forgot to put code in the installer to disable SIP for the duration of the installation. That's why the computer normally restarts a couple of times during the installation.
#Mac hosts file not working high sierra install
The installation program has to disable SIP to install the system files and then enable it when it is done. The purpose of the installation program is to change system files. The purpose of SIP is to protect system files. How do I install High Sierra when unable to install from the USB or download directly from the server? The recommended solution to use ethernet does not work, nor am I able to edit the hosts file.
Yet I get an error 'The recovery server cannot be contacted'. It connects to Internet recovery, both via WiFi and ethernet. Unfortunately, I've since erased the SSD (APFS) and there is currently nothing on it.īooting using the recovery partition doesn't work either. I've re-created the USB several times and get the same error. The USB is being created on my MacBook Pro (12,1) and has been used for a successful install on the 7,1 - I subsequently had to finish setup to access system info, so am re-installing the OS, which is what is causing the problem. None of the suggested resolutions with Sierra work due to using a USB.
Using a bootable USB, I get the error 'This copy of the Install macOS Sierra.app application is damaged, and can't be used to install macOS'. I'm trying to install macOS High Sierra on a mid-2010 MacBook Pro (7,1).