lpsantil

#!/bin/bash

# Instructions:
#       1) Create your TAR archive
#               tar -czpf file.tar <file1> <file2> ... <fileN>
#       2) Append the TAR file contents to the script
#               cat file.tar >> embeddedPayload.sh
#       3) Run script. (./embeddedPayload.sh)

lpsantil

Setup with TinyCore Linux (RAM only OS) on Raspberry Pi Zero W on Windows

These are the steps taken to setup piCore 14 on a Raspberry Pi with only Wi-Fi (no ethernet)
Newer version might work as well (or maybe even better), but have not been tested.

Set up piCore

1. Download the piCore image
2. Unpack the .zip file and write the .img file to the SD-Card (using Raspberry Pi Imager for example)
3. Move the SD-Card to the Pi, plug in a keyboard and a screen, plug in the power source
4. Execute backup shell command after the first boot to save generated unique SSH keys which will be used during next boots.

lpsantil

# Count total EBS based storage in AWS
aws ec2 describe-volumes | jq "[.Volumes[].Size] | add"
# Count total EBS storage with a tag filter
aws ec2 describe-volumes --filters "Name=tag:Name,Values=CloudEndure Volume qjenc" | jq "[.Volumes[].Size] | add"
# Describe instances concisely
aws ec2 describe-instances | jq '[.Reservations | .[] | .Instances | .[] | {InstanceId: .InstanceId, State: .State, SubnetId: .SubnetId, VpcId: .VpcId, Name: (.Tags[]|select(.Key=="Name")|.Value)}]'
# Wait until $instance_id is running and then immediately stop it again
aws ec2 wait instance-running --instance-id $instance_id && aws ec2 stop-instances --instance-id $instance_id

# Get 10th instance in the account

lpsantil

U-Boot 2009.08-00088-g121cddc (Nov 17 2014 - 05:50:46) Avocent (0.0.3) EVB, Build: jenkins-idrac-yocto-release-505

CPU: SH-4A
BOARD: R0P7757LC00xxRL (C0 step) board
BOOT: Secure, HRK not generated
DRAM:  240MB
  (240MB of 256MB total DRAM is available on U-Boot)
ENV:   Using primary env area.
In:    serial
Out:   serial

lpsantil

U-Boot 2009.08-00088-g121cddc (Nov 17 2014 - 05:50:46) Avocent (0.0.3) EVB, Build: jenkins-idrac-yocto-release-505

CPU: SH-4A
BOARD: R0P7757LC00xxRL (C0 step) board
BOOT: Secure, HRK not generated
DRAM:  240MB
  (240MB of 256MB total DRAM is available on U-Boot)
ENV:   Using primary env area.
In:    serial
Out:   serial

lpsantil

[SH7757 /flash]$ reboot
/etc/sysapps_script/avct_reboot.sh: line 44: can't create /flash/data0/date_tmp: Read-only file system
Wait for pending config changes ...
Done
cp: can't stat '/flash/data0/cv/avctpasswd': No such file or directory
cp: can't stat '/flash/data0/cv/avctpasswd_new_done': No such file or directory
/etc/sysapps_script/avct_reboot.sh: line 80: can't create /flash/data0/aim/persistent/os_str_main_cert_path: nonexistent directory
/etc/sysapps_script/avct_reboot.sh: line 81: can't create /flash/data0/aim/persistent/os_str_main_key_path: nonexistent directory

 watchdog_shutdown2 SIGINT ..killall: AppMonitor: no process killed

lpsantil

U-Boot 2009.08-00088-g121cddc (Nov 17 2014 - 05:50:46) Avocent (0.0.3) EVB, Build: jenkins-idrac-yocto-release-505

CPU: SH-4A
BOARD: R0P7757LC00xxRL (C0 step) board
BOOT: Secure, HRK not generated
DRAM:  240MB
  (240MB of 256MB total DRAM is available on U-Boot)
ENV:   Using primary env area.
In:    serial
Out:   serial

lpsantil

#include <time.h> //  Robert Nystrom
#include <stdio.h> // @munificentbob
#include <stdlib.h> //     for Ginny
#define  r return    //    2008-2019
#define  l(a, b, c, d) for (i y=a;y\
<b; y++) for (int x = c; x < d; x++)
typedef int i;const i H=40;const i W
=80;i m[40][80];i g(i x){r rand()%x;
}void cave(i s){i w=g(10)+5;i h=g(6)
+3;i t=g(W-w-2)+1;i u=g(H-h-2)+1;l(u

lpsantil

# Add the following 'help' target to your Makefile
# And add help text after each target name starting with '\#\#'
 
help:           ## Show this help.
	@fgrep -h "##" $(MAKEFILE_LIST) | fgrep -v fgrep | sed -e 's/\\$$//' | sed -e 's/##//'
 
# Everything below is an example
 
target00:       ## This message will show up when typing 'make help'
	@echo does nothing

lpsantil

• Binary Builds

oc new-build --binary=true --name=ola2 --image-stream=redhat-openjdk18-openshift
oc start-build ola2 --from-file=./target/ola.jar --follow
oc new-app 

• Turn off/on DC triggers to do a batch of changes without spam many deployments