Isaac Parker parrotmac

in 5 easy steps

1

2

compile a kernel (use the provided x_kernel_config file), you'll need the stripped ELF file in arch/x86/boot/compressed/vmlinux.bin or the compressed bzImage for cloud-hypervisor.

Mappings for DMI/SMBIOS to Linux and dmidecode

Information can be put into dmi tables via some qemu-system hosts (x86_64 and aarch64). That information is exposed in Linux under /sys/class/dmi/id and can be read with dmidecode. The names are very annoyingly inconsistent. The point of this doc is to map them.

See qemu-system-x86_64 --help for the fields that qemu will accept. qemu smbios flags vary with qemu version.

Mappings

Example qemu cmdline:

qemu-system-x86_64 -smbios type=,field=value[,...]

Create Root CA (Done once)

Last update: Nov 2025.

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl ecparam -genkey -name secp384r1 | openssl ec -aes256 -out rootCA.key

Honda OBDlink SX notes 2015-08-19

My OBDLink SX data:

>AT I
ELM327 v1.3a
>ST DI (HARDWARE ID STRING)
OBDLink SX r4.2
&gt;ST I (FIRMARE ID STRING)

rbackup

rbackup is a lightweight, rsync-powered backup utility that creates time-stamped backups.

Features

It can save backups to your local filesystem (probably an attached USB device) or to a remote host.

Backups are saved in time-stamped directories. Backups are cheap on storage, because hard-links are used for files that haven't changed between backups.

	#include <sys/ioctl.h>
	#include <stdio.h>
	#include <unistd.h>

	int
	main(void) {
	struct winsize ws;
	ioctl(STDIN_FILENO, TIOCGWINSZ, &ws);

	printf ("lines %d\n", ws.ws_row);

	{
	"presets": [
	["es2015", {
	"es2015": {
	"loose": true,
	"modules": false
	}
	}], "react"
	]
	}

	# taken from http://www.piware.de/2011/01/creating-an-https-server-in-python/
	# generate server.xml with the following command:
	# openssl req -new -x509 -keyout server.pem -out server.pem -days 365 -nodes
	# run as follows:
	# python simple-https-server.py
	# then in your browser, visit:
	# https://localhost:4443

	import BaseHTTPServer, SimpleHTTPServer
	import ssl


	timeAgo = angular.module 'app'


	# Filter: time
	# Date.parse() is inconsistent across browsers
	# this is a shim for parsing ISO-8601 date strings

	timeAgo.filter 'time', ->
	(time) ->

	#include<stdio.h>
	#include<stdlib.h>
	#include<sys/socket.h>
	#include<features.h>
	#include<linux/if_packet.h>
	#include<linux/if_ether.h>
	#include<errno.h>
	#include<sys/ioctl.h>
	#include<net/if.h>
	#include<net/ethernet.h>