Listing posts [Blog]

id foo # uid=1000, gid=2000

# change ids to 5000.6000
usermod  -u 5000 foo
groupmod -g 6000 foo

# fix old files settings
find / -user  1000 -exec chown -h foo {} \;
find / -group 2000 -exec chgrp -h foo {} \;

Source: cyberciti.biz

~~~ * ~~~

Setup RetroPie gaming station

1261 · cloud ·

Last update
2019-10-30

2019
10-30

«raspi»

Setting up RetroPie

Check your locale settings with the locale command:

pi$ locale | sort
LANG=en_GB.UTF-8
LANGUAGE=
LC_ADDRESS="en_GB.UTF-8"
LC_ALL=
LC_COLLATE="en_GB.UTF-8"
LC_CTYPE="en_GB.UTF-8"
LC_IDENTIFICATION="en_GB.UTF-8"
LC_MEASUREMENT="en_GB.UTF-8"
LC_MESSAGES="en_GB.UTF-8"
LC_MONETARY="en_GB.UTF-8"
LC_NAME="en_GB.UTF-8"
LC_NUMERIC="en_GB.UTF-8"
LC_PAPER="en_GB.UTF-8"
LC_TELEPHONE="en_GB.UTF-8"
LC_TIME="en_GB.UTF-8"

and set missing values in /etc/environment:

1 2	LANGUAGE="en_GB:en" LC_ALL="en_GB.UTF-8"

1
2
3

git clone --depth=1 https://github.com/RetroPie/RetroPie-Setup.git ~/RetroPie-Setup
cd ~/RetroPie-Setup
sudo ./retropie_setup.sh

do a Basic Install and disable the splashscreen in Configuration to avoid a suddend switch to VT1 after the graphical login (see reddit Q/A and retropie faq).

Disable screenblanker by appending consoleblank=0 to kernel parameters in /boot/cmdline.txt.
Set memory split for the video card to at least 128MB via raspi-config.
Create a shortcut to launch EmulationStation from the Pixel desktop (or use the alacarte menu editor):

# ~/.local/share/applications/retropie.desktop
[Desktop Entry]
Type=Application
Name=RetroPie
Comment=Retro video game emulators
Exec=/home/pi/bin/start-retropie
Icon=/path/to/retropie.png
Terminal=false
Categories=Application;Game;

create the /home/pi/bin/start-retropie:

#!/bin/sh
# release the video card and switch to the 1st foreground virtual terminal
sudo /path/to/ttyecho -n /dev/tty1 \
  "sudo systemctl stop lightdm ; " \
  "sleep 1 ; " \
  "chvt 1 ; " \
  "emulationstation --debug > /run/shm/ra.log 2>&1 ; " \
  "sudo systemctl start lightdm"

then compile and install the ttyecho program (see attachment).

Note: Make sure you have enabled console autologin on VT1 via raspi-config.

Optionally you can configure runcommand to show a game splashscreen by enabling Launch Menu Art in its configuration, and even set a system default image by installing the experimental package launchingimages.
Show scanlines:
- Configuration > Retroarch > Enable shaders and overlays
- Configuration > Configedit > Configure basic libretro emulator options > Configure default options for all libretro emulators > Video shader enable and Video shader file > crt-pi.glslp
When configuring controller you can skip buttons you don't have by simply long press a button.
Setup video mode:

Set your tv/monitor format by setting sdtv_mode=2 (PAL) in /boot/config.txt.

Set the low resolution VGA mode CEA-1 by putting in /opt/retropie/configs/all/videomodes.cfg:

mame4all = "CEA-1"
mupen64plus = "CEA-1"
pifba = "CEA-1"
lr-beetle-ngp = "CEA-1"
lr-beetle-pce-fast = "CEA-1"
lr-beetle-supergrafx = "CEA-1"
lr-caprice32 = "CEA-1"
lr-fbalpha = "CEA-1"
lr-fceumm = "CEA-1"
lr-fuse = "CEA-1"
lr-gambatte = "CEA-1"
lr-genesis-plus-gx = "CEA-1"
lr-gpsp = "CEA-1"
lr-handy = "CEA-1"
lr-mame2000 = "CEA-1"
lr-mame2003 = "CEA-1"
lr-mgba = "CEA-1"
lr-mupen64plus = "CEA-1"
lr-nestopia = "CEA-1"
lr-pcsx-rearmed = "CEA-1"
lr-picodrive = "CEA-1"
lr-prosystem = "CEA-1"
lr-quicknes = "CEA-1"
lr-snes9x2002 = "CEA-1"
lr-snes9x2005 = "CEA-1"
lr-snes9x2010 = "CEA-1"
lr-stella = "CEA-1"
lr-vba-next = "CEA-1"
lr-vecx = "CEA-1"

in this manner your TV will do the upscaling work and the emulators will run faster.

Upgrading RetroPie version

1
2
3

cd ~/RetroPie-Setup
git pull
sudo ./retropie_setup.sh # and choose "Update" from the menu

Note: When the upgrade is finished make sure the splashscreen is disabled.

Scraping game images

Install Skyscraper in the experimental packages
Customize game aliases in ~/.skyscraper/aliasMap.csv
Import your custom JPG/PNG images by placing them in ~/.skyscraper/import/<covers|screenshots|wheels> with the same name as your roms

PlayStation tips (`lr-pcsx-rearmed`)

Use this script to rip your own original PSX cd-rom discs:

#!/usr/bin/env ruby
require 'shellwords'

dev   = '/dev/dvd'
title = ARGV[0].strip
vol   = `volname #{dev}`.strip
vol   = 'NO-LABEL' if vol.size == 0
puts "#{vol} - #{title}\n\n"

system "cdrdao read-cd --read-raw --read-subchan rw_raw --datafile #{title.shellescape}.bin --device #{dev} --driver generic-mmc-raw #{title.shellescape}.toc" # 2>&1 | tee #{title.shellescape}.log

system "eject #{dev}" if $?.to_i == 0

# add comment
lines = File.read("#{title}.toc").split("\n")
lines.insert(2, "// #{vol} - #{title}")
File.open("#{title}.toc",'w'){|f| f.puts lines }

# update m3u
if title =~ /^(.+) \(CD(.)\)$/
  File.open("#{$1}.m3u", 'a'){|f| f.puts "#{title}.toc"}
end

#toc2cue $vol.toc $vol.cue # optional

if using a different program that creates multiple bin files then you can merge them via binmerge

File extensions: bin/img + toc/cue + sbi (image, descr, subchannel)
Multidisc howto:

# files in Retropie/roms/psx folder:
.multidisc/Title (CD1).bin
.multidisc/Title (CD1).toc
.multidisc/Title (CD2).bin
.multidisc/Title (CD2).toc
Title.m3u

# Title.m3u file contents:
.multidisc/Title (CD1).toc
.multidisc/Title (CD2).toc

Datasets, subchannels, CUE sheets: redump.org, emuparadise.org

Source: RetroPie HP, wired, Pixel & RetroPie, RP icon, TTYecho, change linux vt/tty

Retropie docs: Wiki, Manual install, RA hotkeys, Controller setup, Supported systems, Arcade HP & MAME info

PlayStation 1: convert ISO to PBP format on windows and linux -- see gtk-popstation and psx2psp/popstation by Ivan Vega

MAME resources: Snapshots, DAT/XML files, game lists by genre, ES gamelist.xml script

Game systems DAT/XML files: HyperList

TODO/WIP:

~~~ * ~~~

Setup an UPS monitor

910 · cloud ·

Last update
2019-10-24

2019
10-24

«NUT - Network UPS Tools»

1	apt-get install nut # install server

Set MODE=standalone in /etc/nut/nut.conf.

Append the user definition in /etc/nut/upsd.users:

[monuser]
password = ApAssWorD
allowfrom = localhost
upsmon master

Optionally, set the daemon to listen only on IPv4 (defaults to both v4 and v6), append in /etc/nut/upsd.conf:

1	LISTEN 127.0.0.1 3493

I had a Powercom KIN-1200AP connected via an USB to serial converter:

# find the converter
lsusb | grep Serial # Bus 001 Device 009: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port

# create an udev rule to fix its device name,
# append this in /etc/udev/rules.d/10-local.rules
ACTION=="add", KERNEL=="ttyUSB[0-9]*", SUBSYSTEMS=="usb", ATTRS{idVendor}=="067b", ATTRS{idProduct}=="2303", SYMLINK+="ttyUSB_UPS"

# append the UPS definition in /etc/nut/ups.conf
[myups]
driver = powercom
port = /dev/ttyUSB_UPS
desc = "Main supply"
loadPercentage = {6.1343,-0.3808,1.075,0.1811}
batteryPercentage = {5.0000,0.3268,-825.00,0.46511,0}

Now I have an Eaton 5E 8509i connected via USB:

# append the UPS definition in /etc/nut/ups.conf
[myups]
driver = usbhid-ups
port = auto
desc = "Main supply"

Che the configured UPS status with the command upsc myups.

Configure the monitor in /etc/nut/upsmon.conf:

MONITOR myups@localhost 1 monuser ApAssWorD master

# setup a custom script to notify you
NOTIFYCMD /opt/ups/nut_notify_cmd.sh

# customize notification messages
NOTIFYMSG ONBATT "Power failure! UPS %s is on battery!"
NOTIFYMSG SHUTDOWN "UPS %s is low on battery! Shutting down the system..."

# enable some logging
NOTIFYFLAG ONLINE SYSLOG+EXEC
NOTIFYFLAG ONBATT SYSLOG+EXEC
NOTIFYFLAG SHUTDOWN SYSLOG+WALL

Add the nut user to dialout group:

1	useradd -G dialout nut

Restart the services and test the ups:

systemctl restart nut-driver
systemctl restart nut-server
systemctl restart nut-monitor

upsc -l     # list all monitored UPSes
upsc myups  # show UPS details and status

Note: Uninstall xfce-powermanager or you will get an USB communication error requiring a system reboot in order to clear it.

Note: To cleanly unmount VeraCrypt volumes you can use this NOTIFYCMD script:

#!/bin/bash

# /opt/ups/nut_notify_cmd.sh - nut NOTIFYCMD script

# put in /etc/sudoers.d/local:
# nut raoul = (root)  NOPASSWD: /sbin/shutdown, /opt/systemd-units/vc-mounter.rb

if [ "$NOTIFYTYPE" = "ONBATT" ]; then
  /opt/bin/shutdown -h 600 &
elif [ "$NOTIFYTYPE" = "ONLINE" ]; then
  sleep 3 # wait for first command to start
  /opt/bin/shutdown -c     &
fi

that uses this useful shutdown script:

#!/usr/bin/ruby

$VERBOSE = nil

# /opt/bin/shutdown - emulate shutdown command and unmount VeraCrypt volumes

require 'optparse'
require 'shellwords'

opts = {}
OptionParser.new{|o|
  o.banner = "Usage: #{File.basename __FILE__} [options]"

  o.on('-r', '--reboot   [N]', Float, 'Reboot   after N seconds (default=0)') do |n|
    opts.merge! action: :reboot, delay: n.to_f
  end

  o.on('-h', '--poweroff [N]', Float, 'Poweroff after N seconds (default=0)') do |n|
    opts.merge! action: :shutdown, delay: n.to_f
  end

  o.on('-c', '--cancel', 'Cancel a pending operation') do |enabled|
    opts.merge! action: :cancel
  end

  opts.merge! help: o.to_s
}.parse!

case opts[:action]
  when :cancel
    `pgrep -fl vc-mounter.rb`
    if $?.to_i == 0
      puts 'aborted'
      exit
    end
    # kill all but yourself
    pids = `pgrep -f ruby.*shutdown`.split("\n").map(&:to_i) - [Process.pid]
    pids.each{|pid| system "kill #{pid}" }
  when :reboot, :shutdown
    sleep opts[:delay]
    `sudo swapon | grep " file " | cut -f 1 -d " "`.strip.split("\n").
      each{|f| system "sudo swapoff #{f.shellescape}" }
    system 'sudo /opt/systemd-units/vc-mounter.rb try-umount'
    system "sudo /sbin/shutdown -#{opts[:action] == :reboot ? :r : :h} 0 &"
  else
    puts opts[:help]
end

Source: [eaton ups setup][(https://srackham.wordpress.com/2013/02/27/configuring-nut-for-the-eaton-3s-ups-on-ubuntu-linux/)

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Listing posts

General

Media

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Setting up RetroPie

Upgrading RetroPie version

Scraping game images

PlayStation tips (lr-pcsx-rearmed)

TODO/WIP:

PlayStation tips (`lr-pcsx-rearmed`)