If no one else puts a recommendation here, I'll say prefer using the rEFInd Linux configuration file instead of GRUB since rEFInd has the same features and avoids chaining both rEFInd and GRUB. All we need is a boot manager to hand off control to the Linux kernel that we want.
#REFIND BOOT MANAGER NOT FINDING UBUNTUDVD PRO#
We don’t need the GRUB boot loader on EFI-based systems, since an EFI-boot loader stub is built into the Linux kernel itself. I plan to dual boot my MacBook Pro 2018 (10.14.3) with ubuntu 18.04.02he relevant guides one can find by googling a bit suggest to have refind boot manager installed. GRUB is both a boot loader and a boot manager. Other than that, wait for a fix from the refind author, or backup & restore the HFS+ AppleCoreStorage volume as a plain HFS+ volume, and see how you get on. of 11 - UEFI MULTI - Make Multi-Boot USB-Drive - posted in Boot from USB / Boot anywhere: File Name: UEFI MULTI - Make Multi-Boot USB-DriveFile Submitter: wimbFile Submitted: File. Note: It will simplify your life, and the setup, if SECURE BOOT (and FAST boot if present) have been disabled in your UEFI BIOS. It allows the easy control of multi-boot systems, regardless of what those systems might be.
I don't know which to prefer so I'll put each way to hide the other. A boot manager hands off control to another boot program. You can always boot back to OSX by holding downBoth of these are showing up because the rEFInd installer found both Ubuntu's GRUB bootloader and the configuration it generated from GRUB for booting your kernel.