Simple persistence screendumps
create 3 partitions
after 'applying operations'
Enter the boot option persistent
In standard Ubuntu and some but not all of the family flavours, you arrive at a screen that looks like this (a small logo appears at the bottom of your screen). Press any key and you will arrive at the syslinux menu.
the syslinux menu
Press the F6 key and then the Escape key and the End key, and backspace to a position before the dashes, where you enter the text persistent surrounded by spaces.
Press the Enter key to continue booting!
the grub menu
Press the e key at this menu
to get this window, where you enter the text persistent surrounded by spaces (near the end of the linux line, but before the dashes).
Press ctrl + x or the F10 key to continue booting!
the grub menu of mkusb/persistent
In this case the boot option 'persistent' is already prepared in the menu.
Run Lubuntu - persistent live
The persistence can be inspected with the command
and the output is very similar in BIOS mode and UEFI mode. Notice these two lines:
/cow 9.8G 48M 9.2G 1% / /dev/sdb3 7.6G 19M 7.2G 1% /home
test -d /sys/firmware/efi && echo efi || echo bios bios
test -d /sys/firmware/efi && echo efi || echo bios efi