> Another issue is rebooting (it does too much and can help to kill your
> display with 770), this can be solved by modifying startup/shutdown
> sequence to not to reboot completely (i.e. go to bootloader and load
> linux kernel again) but to stop everything, go back to initfs and start
> again with different rootfs.
Does it already have some of this functionality? I've noticed that
neither reboot nor poweroff using the menu on the device is a
truly clean reboot/shutdown. For example, on poweroff, if the
device is on the charger, it doesn't even kill all processes. If I
have music playing, it keeps on playing after 'poweroff'! And
reboot appears to not be a hard reset as some state appears to be
saved.
I assume it's going to a different runlevel but I don't know
exactly what it's doing. Does anyone know what the different init
runlevels are used for? On first boot up, it appears to use
runlevel 2, but after a 'poweroff' with charger and 'poweron'
again, it doesn't go back to runlevel 2.
> I was already thinking about tweaking initfs and rootfs boot scripts to
> restart system without going through bootloader and kernel again but so
> far had no spare time for this. Adding unionfs to initfs and bootmenu
> options is next step. This could be useful also for developers, one
> could add another unionfs layer over rootfs, test some dangerous stuff
> and then remove the layer and go back to previous system.
It certainly would be useful to be able to run, for example, both
bora and chinook on a N800 for development purposes and easily
switch between the two.
