Comment 6 for bug 1870189

I've traced the issue back to "00_header" and "10_linux" here:

https://git.launchpad.net/ubuntu/+source/grub2/tree/debian/patches/ubuntu-add-initrd-less-boot-fallback.patch?h=ubuntu/focal

diffstat debian/patches/ubuntu-add-initrd-less-boot-fallback.patch
 Makefile.am | 3 ++
 configure.ac | 10 +++++++
 grub-initrd-fallback.service | 12 +++++++++
 util/grub.d/00_header.in | 27 ++++++++++++++++++++
 util/grub.d/10_linux.in | 56 +++++++++++++++++++++++++++++--------------

This is still an issue. I have to manually patch the cloud images with guestmount after downloading them in order to make them to work. Please advise. Thank you!