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boot-update gives MBR when GPT

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Trying to fix my Funtoo install and boot-update is giving the following output:



boot-update 1.8.2 /
Copyright 2009-2017 Funtoo Technologies

 [use option "-l" for license info, "-h" for help]

  * Generating config for grub...

            Funtoo Linux genkernel - kernel-debian-sources-x86_64-4.8.15-1
  DEFAULT > Funtoo Linux genkernel - kernel-debian-sources-x86_64-4.14.2-1

  * NOTE: Detected MBR boot. Configuring for Legacy MBR booting.
  * WARN: multiple matches found for default "Funtoo Linux genkernel" - most recent used.
  * NOTE: Intel microcode will be loaded at boot-time.

  * Completed successfully with warnings.

now, normally I'd trust a utility, but I know this disk is a GPT and "gdisk -l /dev/sda" gives the following:


GPT fdisk (gdisk) version 1.0.3

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: present


So...is there a good solution here?  For the record, I'm in a chroot environment from an Ubuntu live USB.

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looks like a warning saying it found two kernels , should be fine

from boot.conf manual....

When using GRUB, boot-update will auto-enable UEFI boot configuration if it sees that your system has been booted in UEFI mode. Otherwise, MBR (legacy) boot mode will be used.

I guess ubuntu booted in legacy mode.

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