It seems that the Mer bootmenu installer won't include *.item files in /etc/bootmenu.d .

After flashing initfs, the Bootmenu shows only entries for INT p2 and EXT p3 and not the entries defined in /etc/bootmenu.d (for booting Mer from INT p3).
But they were copied to /mnt/initfs/etc/bootmenu.d

I tried to entry the bootmenu.sh script, but the file is write protected.
So I copied it to /etc/bootmenu.conf and the Mer bootloader script asked me to include.
After rebooting it freezed while displaying the loading screen of the bootmenu ("Press home button for advanced menu options").
I had to reflash initfs.

Has anyone an idea how to get it booting INT p3?