Thanks. The basic instructions and d/ls are at the links I posted at post three. I used the instructions at
http://badaboum.bidibom.free.fr/linux-jornada-fs/
and used his/her archives
(tar.bz2
) to copy the file systems to my CF card. The best I remember I wasn't able to get the card to boot and it is, after all, built for a J720. I then went to
http://jornada820.sourceforge.net/binaries.html
and put François-René Rideau and his group's bootimage and the bootloader, I believe the loader came from the BSD guys but I'm not sure, on the card's FAT 16 partition. This combination boots to a ramdisk and then pivot-roots to the J720 'userland.' I was never able to find the Fare group's userland.
I should mention that the J720 install apparently has an X-window instance with Ion2 as a window manager that of course doesn't work on the J820, at least I haven't been able to do so. From reading mail archives it appears that the Fare group had a working X11 and I've seen hints that the Netbsd port also had one.
I would almost bet that someone who knew what they were doing, I don't, could use the serial line for SSH. Such a person could probably add apps from archives of Debian Sarge from the 2.4 kernel Arm port to the CF card.
My old Lenovo XP/Ubuntu dual boot laptop had it's fan quit so at the moment all I have to use is a cheap Win 10 laptop with a Ubuntu 16.04 VM and no CF card reader and some old Panasonic Toughbooks with some older linux installs on them.
When I boot Sarge on the J820 it 'sees' my Netgear PCMCIA Model FA411 network card and if I can dig a network cable out of my junk pile I may try to direct connect it to one of the old Toughbooks.