dual boot not working

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Hi All,

Fedora-Xfce-Live-x86_64-30-20190329.n.0.iso

I am attempting to get a flash drive with Fedora and Xfce installed
on it to dual boot.  This procedure worked under Fedora 29.

It boots fine from EUFI.

From legacy bios, it goes to "system setup"

What am I doing wrong?

Many thanks,
-T

This is my HowTo:


UEFI.BIOS.Dual.Boot.txt:

References that stink:
    https://forums.linuxmint.com/viewtopic.php?t=223015
    https://bl.ocks.org/gdamjan/05b799162e4b3e97a30d37a89fed0fa8

https://forum.level1techs.com/t/configure-grub-to-boot-legacy-and-uefi/129382


Requirements:
   Fedora 29

   Before installing, gparted:
      Wipe the target disk

      create a partition table as GPT

      create a first partition as
          1 Meg
          unformatted
          set the partition flag to "bios_grub"

   Install Fedora 29 from a UEFI machine:
      "/home" was removed at installation and moved into "/"

--->>>   PRESUMED !!!   <<<---
      The machine was install and booted from UEFI
      The machine is mounted as /dev/sda


Install the legacy BIOS boot loader:

Boot into fedora on UEFI

only installs 3 files
# dnf reinstall grub2-pc

create the BIOS .cfg file
# grub2-mkconfig -o /boot/grub2/grub.cfg

Note: if this complains, you forgot to create the partition above
# grub2-install --removable --recheck --target=i386-pc --boot-directory=/boot /dev/sda



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