Well, today I did an apt-get update and then an apt-get upgrade.

I had only 2,5 mb left on rootfs /

Well, two apps couldn't install because of full rootfs partition (modest and osso pdf reader).

Now I cant boot. Well, it boots but after the boot video it restarts.
I suppose it's happening because OS integrity is bad because of these two programs that couldn't finish installing because of the full rootfs part.

What I could do? Is there some way I could boot without reflashing the OS again? I would rather try to not reflash it because I had A LOT of customised settings.

Thanks a lot, I hope someone replies me.