Grub dependency isn't available for Ubuntu for ARM

[rgov]

The list of dependencies for Ubuntu includes grub-pc-bin, which is only published for amd64.

You can work around this by passing --workaround-skip-grub or using the "Skip legacy grub bootloader" in the Options menu of woeusbgui.

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Looking over the package contents it does not obviously contain any executables that might be run during the install process...

So I decided to YOLO it:

$ wget http://security.ubuntu.com/ubuntu/pool/main/g/grub2/grub-pc-bin_2.04-1ubuntu26.12_amd64.deb
$ mkdir debwork
$ dpkg-deb -R grub-pc-bin_2.04-1ubuntu26.12_amd64.deb debwork
$ sed -i '/^Depends:/d' debwork/DEBIAN/control
$ sed -i 's/^Architecture: amd64/Architecture: arm64/' debwork/DEBIAN/control 
$ dpkg-deb -b debwork HORRIBLE-grub-pc-bin.deb
$ sudo dpkg -i HORRIBLE-grub-pc-bin.deb 

The GRUB install step seemed to succeed but I didn't investigate much further than that. My AMD64 device booted the thumb drive successfully but I don't know if it went through GRUB.