johnko

#/usr/bin/env bash
set -euo pipefail

exit 1

# Need the SystemAdministrator AWS SSO / IAM PermissionSet

for region in $(aws ec2 describe-regions --query 'Regions[].RegionName' --output text); do

    echo "* Region ${region}"

johnko

#! /usr/local/bin/bash
#
# Calomel.org 
#     https://calomel.org/zfs_health_check_script.html
#     FreeBSD 9.1 ZFS Health Check script 
#     zfs_health.sh @ Version 0.15

# Check health of ZFS volumes and drives. On any faults send email. In FreeBSD
# 10 there is supposed to be a ZFSd daemon to monitor the health of the ZFS
# pools. For now, in FreeBSD 9, we will make our own checks and run this script

johnko

# Ubuntu Server automated installation
# by Scott Lowe (scott.lowe@scottlowe.org)

d-i debian-installer/locale string en_US
d-i console-setup/ask_detect boolean false
d-i keyboard-configuration/layoutcode string us
d-i netcfg/choose_interface select eth0
d-i netcfg/get_hostname string hostname
d-i netcfg/get_domain string domain.com 
d-i netcfg/wireless_wep string

johnko

Free

Programming in general:

• https://www.khanacademy.org/
• https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/

Web-based programming:

• https://developer.mozilla.org/en-US/
• http://eloquentjavascript.net/

Some free content

johnko

Installing FreeBSD on a USB drive with ZFS using bsdinstall unattended

I typically wrap all these commands into a shell script that I can reuse, but here they are in steps.

Please read through all the instructions before actually performing the commands, just to avoid any surprises

Requirements:

• careful typing and copy/paste skills
• USB drive (8 GB+ ?) Make sure you don't need anything on that drive

johnko

# Edit your /etc/pf/pf.conf
# If you are connected via ssh, make sure you allow connection to your ssh port!
vi /etc/pf/pf.conf

# Enable pf on your system
sysrc pf_enable="YES"
sysrc pf_rules="/etc/pf/pf.conf"

#  Start pf service/daemon
# If you are connected via SSH, you may be disconnected

johnko

(da0:umass-sim0:0:0:0): READ(10). CDB: 28 00 00 00 28 70 00 00 08 00 
(da0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): READ(10). CDB: 28 00 00 00 28 70 00 00 08 00 
(da0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): READ(10). CDB: 28 00 00 00 28 70 00 00 08 00 
(da0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): READ(10). CDB: 28 00 00 00 28 70 00 00 08 00 

johnko

Experiments with FreeBSD on Intel Compute Stick

Ingredients

Acquire an Intel Compute Stick with Atom CPU and 2GB of RAM, 32GB of storage.

The product code I got is BOXSTCK1A32WFC.

You'll also need:

johnko

Script started on Wed Nov 25 20:15:39 2015
# sh test.sh

+ zfs create tank/pool1
+ zfs snap tank/pool1@now
+ zfs send tank/pool1@now
+ zfs recv tank/pool2
+ hostname
+ zfs snap tank/pool1@a
+ date

johnko

#!/usr/bin/env python
# based on the tahoelafs project
# requires modification to pyfilesystem for mknod etc.
# but provides enough to extract a minimal linux install
# and then chroot into it :)
import pymongo
import gridfs
import os
import fs
import math