“!!! Failed to execute fallback shell” - appeared after system update on recent Fedora 35. None of previous version work. Not even rescue version. Is there any solution (except reinstall of all system) ?
Something must be broken with systemd during the upgrade. You could try use liveusb, then chroot
it. After that run dnf distro-sync
to find and install broken packages.
Here on how to chroot
from Fedoramagazine.
Thanks for quick reply))
I’ll try and write down the result.