RFE: systemd-boot should say "Default boot entry is not working" or similar

Submission type

• Request for enhancement (RFE)

systemd version the issue has been seen with

systemd 231 and earlier

Used distribution

Arch Linux (currently in use)
Fedora (has conf files, not installed)
Gentoo (removed conf files)

In case of bug report: Expected behaviour you didn't see

More verbose error screen, especially when timeout is very low, saying something along the lines "Default boot entry not working"

In case of bug report: Unexpected behaviour you saw

systemd-boot was throwing an error about a file not being in EFI dir (\EFI\shellx64_v2.efi in my case) when it was, in fact, in that location.

In case of bug report: Steps to reproduce the problem

Can probably reproduce by having an invalid efi file at the same location (most likely same effect)

1. On EFI capable computer (one that CANNOT run shellx64_v2),
2. Add uefi-shell-v2-x86_64.conf.txt inside /loader/entries folder (without .txt extension)
3. Add uefi v2 shell in proper location
4. Reboot

Side note: I don't know why it was always trying to boot the shell first (during troubleshooting, I removed the file and a different error came up, related to an OS I had removed, which is how I resolved the issue). It is possible that it defaulted to the shell after I removed a different conf file awhile back.

Additional information:

$ ls /boot/efi
c69ea34dbc144cd0b964c740ee7bf87c keys mach_kernel shellx64_v2.efi
EFI loader shellx64.efi System

$ ls /boot/efi/EFI
arch Boot Microsoft refind shellx64_v1.efi shellx64_v2.efi systemd tools

$ ls /boot/efi/loader/entries
arch.conf fedora.conf
arch-fallback.conf keytool.conf
arch-grub.conf uefi-shell-v1-x86_64.conf
c69ea34dbc144cd0b964c740ee7bf87c-4.7.6-1-ARCH.conf uefi-shell-v2-x86_64.conf
c69ea34dbc144cd0b964c740ee7bf87c-4.7.6-ARCH.conf

Start with the systemd-boot behavior around /loader/entries and EFI paths, using the supplied uefi-shell-v2-x86_64.conf reproduction setup on an EFI-capable system. Trace the error shown when the selected entry cannot boot and determine how the default-entry failure should be reported; done means the screen clearly identifies that the default boot entry is not working.