#Pre Boot error
15 messages · Page 1 of 1 (latest)
Can't see clearly on the screen.
Better take a clear photo
Before proceeding with the installation of Arch Linux, it is important to ensure that the latest firmware updates for you MacBook are installed. This procedure requires OS X. In OS X, open the App Store and check for updates. If your Mac finds and installs any updates, make sure to reboot your computer, and then check again for updates to make sure that you installed everything.
Firmware bug. see above.
So reinstall OS X then
Better follow doc, install linux on MAC not that simple. https://wiki.archlinux.org/title/MacBookPro11,x