The path /System/Installation/Packages/OSInstall.mpkg appears to be missing or damaged. You'd get error: macOS could not be installed on your computer I tried to install this and it didn't work.
It involved trying to install it somewhere and before restarting the machine, close the installer (see forum post for reference).įollowing these steps I created a external bootable High Sierra Beta installation image of Beta 5. Looking around I found a way to create a bootable High Sierra Beta installation image. You'd get error: Could not create a preboot volume for APFS install.Īt this point, I reverted back to my Time Machine backup. This worked, so I tried to do a recovery boot, reformat the HD to APFS and then install High Sierra Beta.
#How to install os x high sierra clean full
So, since you don't get the full installer right away, I decided to simply install High Sierra Beta over 10.11. My base OS was El Capitan (10.11), when you download High Sierra Beta from there, it merely downloads ~20mb. Here's a couple of things I tried before arriving at steps above: The traditional way of installing the OS image into a external flash drive does not seem to work for the time being. Upon restart the main HD will be clean installed with High Sierra Beta and APFS formatted.Download High Sierra Beta from external HD booted system and install it in main HD.Once booted again into external HD, format main HD to be APFS.Reboot and press Option key when the computer makes a beep and select external HD to boot from it.Go to Preferences and change Startup Disk to be main HD. When the system reboots and finishes installation, it will boot from the external HD.Download High Sierra Beta and install it in the external hard drive.From 10.11 or 10.12 systems, format an external hard drive with at least 500gb with "Mac Os Extended Journaled".Clean Install High Sierra on APFS-formatted main HD Installation Steps
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