GRUB error: invalid arch-independent ELF magic. Solution How To Fix Linux Centos Ubuntu Mint
I've seen this bizarrely happen on a newly partitioned and custom installed Linux install, particularly if you did not properly unmount before rebooting.
You can find reports of it happening on various
How to fix the error: invalid arch-independent ELF magic.
You need to boot into Live/Rescue mode, chroot into your OS properly and then do a grub-install on each drive that needs to be booted from.
How To Avoid The Error:
The solution to avoid the problem is to make sure that /boot and / are properly unmounted and I've never seen that error. I have confirmed that it can even happen on a successful grub-install if you don't unmount properly.
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