thanks again for your work, couple of suggestions here:

can you please add an option in the menu to continue booting / return to bootmenu/multiboot?

it's basically reversing what you did at the start:

killall udevd # this is important !!
mountroot
busybox pivot_root /tmp/mnt/rootfs/ /tmp/disk/
exec chroot /tmp/mnt/rootfs/ ash /sbin/preinit

executing /sbin/preinit will either boot maemo or launch boot menu or multiboot depending on which is installed and the keyboard slider state.

I have tried this with multiboot installed.

there is just one problem with the maemo boot up process, when rebooting maemo doesn't always start, due to DSME or BME shutting down for some weird reason, same applies here, some times maemo starts, some times it just shutdowns, I will try finding out how DSME state gets set during bootup.

also please comment out the line which keeps echoing the battery state in charge.sh script (last line), it makes the terminal harder to use.

one last thing, about the menu becoming unusable after returning from the terminal, once it's quit you can clear the screen and use printf to print the menu items to the console instead of text2screen.

thanks in advance.