Comment 2 for bug 1918996

I'm trying to create a 'persistent' LiveUSB from LMDE 5 'Elsie' according to these instructions:
https://www.linuxuprising.com/2019/03/create-persistent-storage-live-usb-with.html

mkusb does its job without errors and creates the following partition structure:
https://ibb.co/vvs4z07

There are several new items in the grub menu with the 'persistent' option
in the name and in the settings. However, no system changes (language, time zone, etc.) are saved
when booting any of these items.