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Ubuntu-on-rpi-fixes

apps, fixes, and optimizations for rpi running Ubuntu desktop.

20.10.png

Flash Ubuntu

  1. Download Ubuntu from here: https://ubuntu.com/download/raspberry-pi

NOTE: Only Ubuntu 20.10 has a version with a desktop, to use other Versions, download Ubuntu server and use Desktopify to install the Ubuntu desktop on it.

  1. flash the file to a SD card (or SSD/USB stick if you want to USB boot) with etcher or rpi imager.
  • a few notes:
    1) USB booting needs the september 2020 version of the rpi bootloader or newer.
    2) you can use any flashing software you want, I tested etcher and rpi imager and know they work. you can also use USBImager.

Install pi-apps

1.go to the pi-apps github and read about it.
2.follow the instructions to install from the readme, I added them bellow:

git clone https://github.com/botspot/pi-apps.git
~/pi-apps/install

fix choppy audio

  1. open terminal and type:
sudo gedit /etc/pulse/default.pa

the text editor will open, if you get a error similar to gedit: command not found, change gedit with your text editor or if you are not sure nano (nano is a terminal based text editor).

  1. find this line: load-module module-udev-detect and add to it's end this: tsched=0 so it looks like this at the end:
load-module module-udev-detect tsched=0

(source)

Fix missing codecs for Videos app (GNOME videos, totem = same app)

NOTE:
this only fixes mp4 video and lets you watch from the built in channels, for anything else I recommend VLC (sudo apt install vlc) or MPV (sudo apt install mpv), they also perform better.

full error: the playback of this movie requires a H.264 (Main Profile) decoder which is not installed

fix:

sudo apt install gstreamer1.0-libav ffmpeg

IF YOU KNOW ANY OTHER FIXES, OPEN A ISSUE AND TELL ME HOW TO INSTALL IT, SO I CAN ADD IT.

Install box86

add armhf architecture (multiarch):
open terminal and type:

sudo dpkg --add-architecture armhf
sudo apt update

Install dependencies:

for Ubuntu 20.04:

sudo apt install libc6:armhf  libx11-6:armhf  libgdk-pixbuf2.0-0:armhf libgtk2.0-0:armhf libstdc++6:armhf libsdl2-2.0-0:armhf mesa-va-drivers:armhf libsdl1.2-dev:armhf libsdl-mixer1.2:armhf libpng16-16:armhf libcal3d12v5:armhf libsdl2-net-2.0-0:armhf libopenal1:armhf libsdl2-image-2.0-0:armhf libvorbis-dev:armhf libcurl4:armhf osspd:armhf pulseaudio:armhf libjpeg62:armhf libudev1:armhf libgl1-mesa-dev:armhf libsnappy1v5:armhf libx11-dev:armhf libsmpeg0:armhf libboost-filesystem1.67.0:armhf libboost-program-options1.67.0:armhf libavcodec58:armhf libavformat58:armhf libswscale5:armhf libmyguiengine3debian1v5:armhf libboost-iostreams1.67.0:armhf  libsdl2-mixer-2.0-0:armhf

For Ubuntu 20.10:

sudo apt install libc6:armhf  libx11-6:armhf  libgdk-pixbuf2.0-0:armhf libgtk2.0-0:armhf libstdc++6:armhf libsdl2-2.0-0:armhf mesa-va-drivers:armhf libsdl1.2-dev:armhf libsdl-mixer1.2:armhf libpng16-16:armhf libcal3d12v5:armhf libsdl2-net-2.0-0:armhf libopenal1:armhf libsdl2-image-2.0-0:armhf libvorbis-dev:armhf libcurl4:armhf osspd:armhf pulseaudio:armhf libjpeg62:armhf libudev1:armhf libgl1-mesa-dev:armhf libsnappy1v5:armhf libx11-dev:armhf libsmpeg0:armhf libboost-filesystem1.71.0:armhf libboost-program-options1.71.0:armhf libavcodec58:armhf libavformat58:armhf libswscale5:armhf libmyguiengine3debian1v5:armhf libboost-iostreams1.71.0:armhf  libsdl2-mixer-2.0-0:armhf

Compile and install box86:

open terminal and type:

git clone https://github.com/ptitSeb/box86
cd box86
sudo apt update
sudo apt install gcc-arm-linux-gnueabihf
mkdir build; cd build; cmake .. -DRK3399=1 -DCMAKE_BUILD_TYPE=RelWithDebInfo; make -j4
sudo make install
sudo systemctl restart systemd-binfmt

Install box86 updater

  1. Go to the box86 updater github
  2. follow the instructions there. I added them bellow as well:

Download:

git clone https://github.com/Botspot/box86-updater

Configure:

~/box86-updater/configure

Install and configure GNOME software

The Ubuntu software app store is actually only the snap store, so to have more apps from flatpak and the Ubuntu archive use gnome software (if you prefer a graphical "app store"):

Install GNOME software:

sudo apt install gnome-software

add snap and flatpak:

#install the snap daemon, it probably already installed, but just in case
sudo apt install snapd

#install flatpak
sudo apt install flatpak

#install the snap and flatpak plugins for GNOME software
sudo apt install gnome-software-plugin-flatpak gnome-software-plugin-snap

Install Zoom

  1. make sure you have box86 installed and updated, if not scroll up and follow the instructions to install it.

  2. Install dependencies:

sudo apt install libxcb-shape0:armhf libxcb-randr0:armhf libxcb-image:armhf libxcb-image0:armhf libxcb-xtest0:armhf libxcb-keysyms1:armhf libdbus-1-3:armhf

  1. Download Zoom: as of writing, the zoom website download is down. you can download a copy I have from here, save it to your Downloads folder.

  2. open terminal and type:

cd ~/Downloads
tar -xf zoom.tar.xz /home/$USER
  1. create launcher script:
    download my launcher script with this command
wget https://raw.githubusercontent.com/Itai-Nelken/Pi-Assistant/main/apps/zoom/startzoom.sh

and move it to the zoom folder with this command:

mv startzoom.sh ~/zoom

if you want to create your own script, copy the script bellow to a new file and name it startzoom.sh:

#!/bin/bash

function error {
  echo -e "\\e[91m$1\\e[39m"
  exit 1
}


if [ -d ~/box86 ]; then

  echo "box86 installed..."

else
  echo "Box86 missing, please install"
  exit 1 

fi

	
#go to zoom directory (~/zoom)
cd ~/zoom
echo "$(tput setaf 3)close this window to exit zoom$(tput sgr 0)"
sleep 2
echo "$(tput setaf 2)starting zoom, ignore any errors...$(tput sgr 0)"
sleep 1
#start zoom with box86
pulseaudio --start
box86 zoom || error "can't start zoom!"
echo "$(tput setaf 2)exiting in 5 seconds:($(tput sgr 0)"
sleep 5
  1. create desktop shortcut:
    Download my desktop shortcut file with this command:
wget https://raw.githubusercontent.com/Itai-Nelken/Ubuntu-on-rpi-fixes/main/files/zoom.desktop

and move it to /usr/share/applications with this command:

sudo mv zoom.desktop /usr/share/applications

you'll be asked for your password.

if you prefer to create your own shortcut, copy the text bellow to a new file and call it zoom.desktop:

[Desktop Entry]
Version=1.0
Type=Application
Name=Zoom
Comment=Linux x86 version of Zoom cloud meetings running using Box86
Exec=~/zoom/startzoom.sh
Icon=~/Pi-Assistant/icons/zoom-icon.png
Path=~/Pi-Assistant/apps/zoom
Terminal=true
StartupNotify=false
Categories=Network;

NOTE:
you can call the file whatever you want, but remember to add the .desktop file extension

Install vdesktop

  1. go to the vdesktop github and follow the download instructions, I added them bellow as well:
git clone https://github.com/Botspot/vdesktop

before running there are a few steps to follow if you plan to boot OS's to Desktop as well and not only CLI:

  1. Compile VirGL:
    -sudo apt purge libepoxy0:armhf; sudo apt purge libepoxy-dev:armhf
    -sudo apt install -y libepoxy0; sudo apt install libepoxy-dev
    -sudo apt install -y meson libdrm-dev cmake libgbm-dev
    -git clone https://gitlab.freedesktop.org/virgl/virglrenderer.git
    -cd virglrenderer
    -meson --prefix=/usr/local -Dbuildtype=release build
    -cd build
    -ninja install
    -cd ~ && sudo -E ldconfig

  2. run vdesktop: use the instructions in the vdesktop github to use it, I'm using a usb stick flashed with TwisterOS, and I want to launch the desktop, so to launch vdesktop, I use sudo ~/vdesktop/vdesktop /dev/sdb gui. follow the prompts to install the dependencies. if you get errors, and vdesktop exits, type in terminal this:

sudo apt install -f

and run vdesktop again.

Install RPi Imager

  1. you could always install the snap or flatpak version, but this is to install the real official version and is more up to date (not that it matters that much, but this version will perform better)

  2. go to this link and scroll down untill you see rpi-imager_1.4_arm64.deb (as of writing, v1.4 is the newest version, if there is a newer version, than click on it of course (this version won't be there)) now click on it to download it.

NOTE:
It's completley safe to download from this site, it's the rpi-archive. every time you run sudo apt install <something> on RPiOS, apt downloads the .deb file from this site, and than installs it (on Ubuntu, apt downloads from here).

  1. once finished Downloading open terminal in the folder where you downloaded the file to (unless you changed it it will be the Dowloads folder in your home folder) and type the following in:
sudo apt install --fix-broken the-deb-file-name.deb

but replace the-deb-file-name.deb with the name of the file you downloaded, for example this is how it will look as of writing this:

sudo apt install --fix-broken rpi-imager_1.4_arm64.deb

NOTE: you can also install by double clicking the .deb file. it will open in the package manager (in Ubuntu software install) and you simply have to click Install, but I think it's better to install from Terminal, personal preference. do whatever method you prefer.