Hello, this happened sometimes already with Antergos as now with EOS. Normally one reboot would fix the situation. Now it seems to be the result of every boot. /b resides on a data disk holding music, video and documents. It has manually partitioned and configured to be mounted on every boot. Now EFI seems having hijacked the disk?!
I guess you have a reason to use systemd-fstab-generator? I’m not famililiar with that tool, so can’t much help with that. But I just read the man page, and for me it seems a bit confusing compared to writing /etc/fstab manually.
Is it possible / sensible in your case to write /etc/fstab manually instead of using systemd-fstab-generator?
I am pretty sure I haven’t had any reason and I have not used systemd-fstab-generator at all. But I just found out the reason for the issue of getting stuck to this. There was en external hard disk attached to the USB socket. Now I can reboot again.
But still I’d like to ask why this same error appears at times although I have no other disks attached to the PC? This has been present as long as I have had Antergos and EOS. Maybe /etc/fstab configuration is somehow wrong.