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Robin Smidsrød robinsmidsrod

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robinsmidsrod / make_vbox.sh
Created May 16, 2016 11:47
Build script for custom iPXE ROM for VirtualBox
make_vbox() {
pushd "$HOME/src/forked/ipxe/src" >/dev/null &&
#make bin/intel--virtio-net--pcnet32.dsk EMBED=../nic-menu.ipxe &&
make CONFIG=vbox bin/intel--virtio-net--pcnet32.isarom && #EMBED=config/vbox/embedded.ipxe &&
#perl util/padimg.pl --verbose --blksize 4096 bin/intel--virtio-net--pcnet32.isarom &&
echo "Max size of VirtualBox ROM is 56KB, 57344 bytes" &&
ls -l bin/intel--virtio-net--pcnet32.isarom &&
prefix=$(date +%Y%m%d-%H%M%S) &&
mkdir -p /ipxe/$prefix &&
cp -v bin/intel--virtio-net--pcnet32.isarom /ipxe/$prefix/ &&
@robinsmidsrod
robinsmidsrod / userns.sls
Created November 4, 2021 18:32
userns.sls subuid subgid podman-compatible saltstack formula
# Only supported on Ubuntu 18.04 and newer
{% if grains.osmajorrelease >= 18 %}
userns.uidmap:
file.touch:
- name: /etc/subuid
- unless: test -f /etc/subuid
userns.gidmap:
file.touch:
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robinsmidsrod / read-omnikey.pl
Created September 29, 2021 16:45
OMNIKey chipcard reader Perl
#!/usr/bin/perl
use strict;
use warnings;
use Chipcard::PCSC;
use Data::Dumper qw(Dumper);
use HTTP::Tiny ();
my $http = HTTP::Tiny->new();
@robinsmidsrod
robinsmidsrod / my-network
Created August 1, 2021 18:20
Home Assistant OS Wi-Fi configuration file
# File /config/network/my-network in hassos-boot partition
[connection]
id=my-network
# Must be unique
uuid=YOUR_UUID_NUMBER
type=802-11-wireless
[802-11-wireless]
mode=infrastructure
ssid=YOUR_WIFI_NAME
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robinsmidsrod / spinrite.iso.debug.log
Created March 30, 2012 14:57
SpinRite 6.0 ISO image sanboot --no-describe --drive 0x81 (from HTTP)
# In VirtualBox
Mar 30 16:55:42 10.1.1.109 ipxe: INT13 drive 81 contains an ISO9660 filesystem; treating as CD-ROM
Mar 30 16:55:42 10.1.1.109 ipxe: INT13 drive 81 has an El Torito boot catalog at LBA 00000014
Mar 30 16:55:42 10.1.1.109 ipxe: INT13 drive 81 (naturally 80) registered with C/H/S geometry 0/0/0
Mar 30 16:55:42 10.1.1.109 ipxe: INT13 drive 81 added to drive count: 2 HDDs, 1 FDDs
Mar 30 16:55:42 10.1.1.109 ipxe: Registered SAN device 0x81
Mar 30 16:55:42 10.1.1.109 ipxe: Booting from SAN device 0x81
Mar 30 16:55:42 10.1.1.109 ipxe:
Mar 30 16:55:42 10.1.1.109 ipxe: INT 13 drive 81 invalid blocksize (2048) for non-extended read/write
Mar 30 16:55:42 10.1.1.109 ipxe: INT13,02 (81) failed with status 01
@robinsmidsrod
robinsmidsrod / lio_start.sh
Last active February 22, 2021 12:49
Configuration for iscsi targets using LIO on Linux (generated via targetcli application)
mkdir /sys/kernel/config/target/iscsi
#### iSCSI Discovery authentication information
echo -n 0 > /sys/kernel/config/target/iscsi/discovery_auth/enforce_discovery_auth
#### Network portals for iSCSI Target Portal Group
mkdir -p /sys/kernel/config/target/iscsi/iqn.2011-02.lan.smidsrod:testvm.boot.ubuntu/tpgt_1/np/10.1.1.10:3260
#### iSCSI Target Ports
mkdir -p /sys/kernel/config/target/iscsi/iqn.2011-02.lan.smidsrod:testvm.boot.ubuntu/tpgt_1/lun/lun_0
ln -s /sys/kernel/config/target/iscsi/iqn.2011-02.lan.smidsrod:testvm.boot.ubuntu/tpgt_1/lun/lun_0/../../../../../../target/core/iblock_7/testvm.boot.ubuntu /sys/kernel/config/target/iscsi/iqn.2011-02.lan.smidsrod:testvm.boot.ubuntu/tpgt_1/lun/lun_0/0acc9b6c97
lio_node --aluasecmd iqn.2011-02.lan.smidsrod:testvm.boot.ubuntu 1 0
#### Attributes for iSCSI Target Portal Group
@robinsmidsrod
robinsmidsrod / pcap_remote.cmd
Last active February 14, 2021 08:50
Capture packets via remote tcpdump using SSH and display in local Wireshark client (Windows batch file)
@echo off
rem Figure out path to plink.exe
set putty_dir_key="HKLM\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\PuTTY_is1"
for /f "tokens=3*" %%x in ('reg query %putty_dir_key% /v "InstallLocation"') do set putty_dir=%%x %%y
if not defined putty_dir (
echo Please install PuTTY using Windows installer from http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html
exit /b 1
)
set plink="%putty_dir%\plink.exe"
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robinsmidsrod / freedos-installer.pxe
Created June 29, 2011 12:06
FreeDOS 1.0 fdfullcd.iso installer booting directly from HTTP with hooked iSCSI drive
#!ipxe
echo
echo Booting FreeDOS installer for ${hostname} from SAN
set root-path iscsi:nas.smidsrod.lan::::iqn.2011-02.lan.smidsrod:${hostname}.boot.freedos
sanhook ${root-path} || goto failed
sanboot -d 0x81 http://boot.smidsrod.lan/freedos-1.0/fdfullcd.iso || goto failed
:failed
echo Boot from ${root-path} failed, dropping to shell
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robinsmidsrod / ubuntu-install.ipxe
Created April 9, 2012 14:18
iPXE installer script for Ubuntu Server x64
#!ipxe
echo
echo Starting Ubuntu 10.04.4 x64 installer for ${hostname}
# Hook SAN disk
set root-path iscsi:nas.smidsrod.lan::::iqn.2011-02.lan.smidsrod:${hostname}.boot.ubuntu
sanhook ${root-path} ||
# Start debian-installer
set base-url http://boot.smidsrod.lan/ubuntu-10.04.4-amd64-server
@robinsmidsrod
robinsmidsrod / ip_and_netmask2cidr.sh
Created April 11, 2015 20:59
Calculate IPv4 network address and CIDR mask from IP address (dotted quad) and network mask (dotted quad)
# $1 is a decimal number between 0-255
dec2bin () {
[ -z "$1" ] && return
D2B=({0..1}{0..1}{0..1}{0..1}{0..1}{0..1}{0..1}{0..1})
echo ${D2B[$1]}
}
# $1 is ip address (dotted quad)
# $2 is netmask (dotted quad)
calc_network () {