ref: b4bebeaccd1ac571f2070671db4f7fec28e34df3
parent: ff5d6e119f3b6d1a6e7e7752db5de3adab6386ad
author: Aaron Lin <jrmu@inter9.org>
date: Sun Oct 27 15:19:46 EDT 2024
Add instructions to remove default boot user to get an rc prompt
--- a/rpi-p9.ms
+++ b/rpi-p9.ms
@@ -16,11 +16,14 @@
NOTE: everything must be on a single command line. Multiple lines will not be parsed
correctly in cmdline.txt.
+If you do not have a display, you may want to remove the default boot user of glenda
+so you get a normal rc prompt. To do so, remove user=glenda from cmdline.txt.
+
In config.txt, the block for the pi zero (or the [all] block) should include the lines:
enable_uart=1
core_freq=250
-
+
You will need a USB to TTL serial cable (see https://www.adafruit.com/product/954).
It must be attached to the correct pins (see https://learn.adafruit.com/raspberry-pi-zero-creation/give-it-life)
@@ -31,6 +34,23 @@
Afterwards, you should see output like the following:
+Plan 9 from Bell Labs
+board rev: 0x9000c1 firmware rev: 1648128071
+vcore reports memory = 0x1f000000
+cpu0: 1000MHz ARM 1176JZF-S
+clocks: CPU 1000000000 core 250000000 UART 48000000 EMMC 200000000
+fp: 16 registers, simd
+fp: arm arch VFPv2; rev 5
+#l0: usb: 100Mbps port 0x0 irq -1: 000000000000
+#u/usb/ep1.0: dwcotg: port 0X0 irq 9
+496M memory: 52M kernel data, 444M user, 1926M swap
+user[none]: bootes
time...
fossil(#S/sdM0/fossil)...version...
init: starting /bin/rc
+Can't cd /usr/bootes: '/usr/bootes' does not exist
+lib/profile: rc: .: can't open: '/bin/lib' file does not exist
+init: rc exit status: rc 31: error
+
+init: starting /bin/rc
+%