<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Times New Roman; font-size: 12pt; color: #000000'><span style="font-size: 12pt;">The "ok" prompt is from "OpenBoot", a boot manager, written in FORTH:</span><div style="color: rgb(0, 0, 0); font-family: "Times New Roman"; font-size: 12pt;"><br></div><div style=""><span style="white-space:pre"> </span>https://docs.oracle.com/cd/E19253-01/816-1177-10/816-1177-10.pdf</div><div style=""><br></div><div style="">Jim</div><div style=""><br></div><div style=""><br><hr id="zwchr" style="color: rgb(0, 0, 0); font-family: "Times New Roman"; font-size: 12pt;"><b style="color: rgb(0, 0, 0); font-family: "Times New Roman"; font-size: 12pt;">From: </b><span style="font-size: 12pt;">"Dan Cross" <crossd@gmail.com></span><br><b style="color: rgb(0, 0, 0); font-family: "Times New Roman"; font-size: 12pt;">To: </b><span style="font-size: 12pt;">"Warner Losh" <imp@bsdimp.com></span><br><b style="color: rgb(0, 0, 0); font-family: "Times New Roman"; font-size: 12pt;">Cc: </b><span style="font-size: 12pt;">"Grant Taylor" <gtaylor@tnetconsulting.net>, "The Unix Heritage Society" <tuhs@tuhs.org></span><br><b style="color: rgb(0, 0, 0); font-family: "Times New Roman"; font-size: 12pt;">Sent: </b><span style="font-size: 12pt;">Tuesday, January 2, 2024 2:50:52 PM</span><br><b style="color: rgb(0, 0, 0); font-family: "Times New Roman"; font-size: 12pt;">Subject: </b><span style="font-size: 12pt;">[TUHS] Re: Question about BSD disklabel history</span><br><br><span style="font-size: 12pt;">On Tue, Jan 2, 2024 at 2:00 PM Warner Losh <imp@bsdimp.com> wrote:</span><br><span style="font-size: 12pt;">> [snip]</span><br><span style="font-size: 12pt;">> Yea, I have a memory of the Sun 3 (68k) machines having a different ROM than the Sun 4 (sparc) machines in the late 80s/early 90s with similar interfaces, but the Sun 3's being simpler. Maybe I just worked with older Sun 3's that didn't have a newer OpenFirmware.</span><br><br><span style="font-size: 12pt;">Sun 3/50 and Sun 3/60 definitely had a different PROM arrangement than</span><br><span style="font-size: 12pt;">SPARCstations. However, I have a vague memory that the Sun 3/80 used</span><br><span style="font-size: 12pt;">OpenFirmware. The 3/80 (and similar Sun-3x machines introduced at the</span><br><span style="font-size: 12pt;">same time) would have been among the last, if not the last,</span><br><span style="font-size: 12pt;">MC68k-based Sun3 machine. I may be wrong, though; it's been a while.</span><br><span style="font-size: 12pt;">Regardless, I vaguely remember the "ok" prompt on a 3/80.</span><br><br><span style="font-size: 12pt;"> - Dan C.</span><br></div></div></body></html>