Re: [PATCH v7 0/3] console: Add persistent scrollback buffers for all VGA consoles

[Jakub Wilk]

* Adam Borowski <kilobyte@xxxxxxxxxx>, 2016-11-28, 00:15:
> > clear(1) doesn't wipe the scrollback at all, it is still reachable, all of 
> > it.
>
> It does for me on the console.  The man page says:
>
> # clear clears your screen if this is possible, including its scrollback
> # buffer (if the extended "E3" capability is defined).  clear looks in the
> # environment for the terminal type and then in the terminfo database to
> # determine how to clear the screen.
>
> Because of its reliance on terminfo, you need to have TERM=linux in your 
> environment; also, screen/tmux obviously breaks this.

The "linux" terminfo entry didn't have E3 until very recently.
You will need ncurses >= 20160514.

--
Jakub Wilk