Ah, I got it. So /temp is really a ramdisk. And thank you for providing a correct place for storing. I guess, /opt/share/terminfo if physically in JFFS range, and should be commited afterwards?
about Putty. I should choose at least any of the available terminals, and any of the input standards. I am not sure which is the best, because I could not make it display in color with ANSI graphics, and respond to "escaped" keys by default.