*** This bug is a duplicate of bug 1939988 ***
https://bugs.launchpad.net/bugs/1939988
Okay wait a minute, it IS possible to install Ubuntu by writing the ISO
to the bootable key with dd from a machine running Linux. I used dd like
so: `sudo dd bs=4M if=/home/noctua/Downloads/ubuntu-21.10-desktop-
amd64.iso of=/dev/sdb conv=fdatasync status=progress` and I was amazed
that Ubuntu actually booted. It took some time to boot, but I was able
to use the installer successfully and I can confirm Ubuntu 21.10 works
fine on the Elite Dragonfly G2 (disable PSR using i915.enable_psr=0 in
the GRUB config kernel boot parameters after installation to eliminate
screen tear and lag). Definitely try doing that. It seems like the HP
system firmware has a flaw with being unable to boot certain things.
Given that the Fedora USB creator writes the raw ISO to the key, this
might be why a Fedora USB key works. I still think this is a flaw that
needs to be fixed, but at least there is a workaround.
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https://bugs.launchpad.net/bugs/1939174
Title:
GRUB2 can't boot Linux on HP Dragonfly G2
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