petitboot should not clear terminal scrollback

[npiggin]

It is a bit annoying to lose terminal scrollback from before the kernel boot.

I think it would be nice to behave like grub -- keep scrollback, clear the screen when booting into the new kernel but leave scrollback and a snapshot of the last petitboot screen in the scrollback history.

[bdragon28]

Yes. Additionally, it should not turn the cursor off (this is especially annoying when trying to edit the kernel command line on a boot entry.)

I believe it's possible to instruct curses to leave that stuff on, but I'm not sure what the incantation is.