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dnl $OpenBSD: prep,v 1.11 2020/07/05 22:27:48 tj Exp $
By default MACHINE systems are shipped with a Linux (or proprietary) system
installed on the CompactFlash card or USB drive.
First connect your computer via serial port to the device (you may need to use
a Cisco serial cable depending on your hardware) with a command such as
"cu -l cuaU0 -s 115200" (assuming cuaU0 is your serial port device). Now apply
power to the device and start it.
Unless you have removed or changed the Linux installation it will be booted
automatically. If you are quick you can interrupt booting (while still in
U-Boot) with ^C.
There are several ways to load an OpenBSD/MACHINE kernel (or ramdisk),
over TFTP, from the internal CompactFlash or USB storage.
Booting from a CF card or USB:
To use the miniroot image you will need another machine to plug the
SD card in to. Any machine type will do, as long as it supports SD card
storage devices. Under OpenBSD, it will appear as a ``sd'' device, for
example sd1.
Use the dd(1) utility to copy the miniroot to the hard drive.
The command would likely be, under OpenBSD:
dd if=miniroot{:--:}OSrev.img of=/dev/rsd1c
On the EdgeRouter Lite, some USB storage devices are not detected
immediately after power on:
USB: (port 0) scanning bus for devices...
USB device not responding, giving up (status=0)
1 USB Devices found
scanning bus for storage devices...
No device found. Not initialized?
In such cases, manually resetting the usb controller may help:
Octeon ubnt_e100# usb reset
Now load the ramdisk kernel using either of the following commands depending
on the medium used. For USB:
Octeon ubnt_e100# fatload usb 0 $loadaddr bsd.rd
For Compact Flash use:
# fatload ide 0:1 ${loadaddr} bsd.rd
Booting over the network:
For TFTP you will first need to set up a TFTP server as described in
diskless(8). Assuming tftpd(8) chroots into /tftpboot, copy bsd.rd into that
directory.
Power on your OpenBSD/MACHINE device and from the U-Boot prompt set up
networking. In this example it is assumed you have a DHCP server in your
network:
# dhcp
If you don't have a DHCP server, you need to set the ipaddr U-Boot environment
variable:
# setenv ipaddr <static ip address>
Now set the IP address of your TFTP server:
# setenv serverip <server ip>
The ramdisk kernel needs to be loaded into memory. If you use "0" as the
address, the default address location will be used by U-Boot:
# tftpboot 0 bsd.rd
Using octeth0 device
TFTP from server 192.168.178.30; our IP address is 192.168.178.89
Filename 'bsd.rd'.
Load address: 0x9f00000
Loading: #########################
done
Bytes transferred = 7191474 (6dbbb2 hex), 8617 Kbytes/sec
Booting the installation kernel
Now the kernel can be booted from the default memory location, with no
arguments provided:
# bootoctlinux
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