Does anyone know how to enable the Legacy Boot Mode on the Dell Chromebook 3100?
When I run CTRL + L
shortcut to boot in legacy mode (there is a Linux Mint drive plugged in), I get this menu:

And when I try to run the TianoCore bootloader (which somehow came preinstalled), the computer entirely hangs, and I have to press the power button and redo this, yet to no avail. Does anyone have ideas on how to fix this? I have made the modification and RW_LEGACY seems to be there.
Press 2 on the os verification is disabled screen.
what does that mean? Clearly you haven’t run my script / installed my RW_LEGACY firmware, or it would be working.
it doesnt say OSVER is disabled
CTRL+D boots CrOS
CTRL+L opens the screen from the post
CTRL+U makes computer beep (once)
Is it possible to dual-boot or preserve chromeos and boot from LinuxMint?
no idea WTF you’re talking about. That’s the expected Developer Mode boot screen.
those are the expected outcomes
there is documentation on this site on how to do that