How to install TermuxArch in Termux of Android (Samsung Galaxy Tab 10.1)

install-termux-arch.md

#################################################################
# How to install Arch in your Android (into the App TermuxArch)
# and be able to use your Android device like a personal computer
# even running a X server to have GUI
#################################################################


###############################
# Install Termux
###############################

# go to google playstore > Termux > install

###############################
# Install XServer XSDL
###############################

# go to google playstore > XServer XSDL > install
# start the XServer XSDL
# there will be sth shown like:

export DISPLAY=192.170.1.100:0
export PULSE_SERVER=192.170.1.100:4713
x-window-manager & firefox

export DISPLAY=:0 PULSE_SERVER=tcp:127.0.0.1:4713

# in Termux, if you want to run an x-programm (program with graphical user interface)
# in TErmux, then type:
export DISPLAY=192.170.1.100:0
export PULSE_SERVER=192.170.1.100:4713
# and then your program name



###############################
# Install TermuxArch via git clone
###############################

# create a github account for this 
# for github account, gmail account is necessary
# create a gmail account before creating github account

# install git on Termux if not done so
pkg install git

# download TermuxArch
git clone https://github.com/sdrausty/TermuxArch

# install prerequisites for arch
pkg install bsdtar
pkg install proot

# intall arch in termux
cd TermuxArch
bash setupTermuxArch.sh
# when successfully installed, it stayes in arch



############################
# prepare pacman
############################

# add mirror for pacman in arch
# https://bbs.archlinux.de/viewtopic.php?id=14528
nano /etc/pacman.d/mirrorlist
# uncomment a server in your country there - for me in Germany
# and save it C-x y # or j depending on language

# immediately update pacman
pacman -Syy
pacman -Syu

#############################
# install and start lxde, the GUI for arch
#############################

# install necessities for x
pacman -S xorg-server 
pacman -S lxde # install all!
pacman -S ttf-dejavu

# inside arch, give what is desired for x into terminal:
export DISPLAY=192.170.1.100:0
export PULSE_SERVER=192.170.1.100:4713
# and then tart your graphical program
startlxde

# Voila! Your LXDE should start and 
# using a bluetooth mouse and bluetooth keyboard,
# it feels like to own a full OS with GUI inside the android!


# ########################
# # if you like fluxbox instead of lxde
# ########################
# # fluxbox had many errors
# 
# pacman -S xterm
# pacman -S firefox
# pacman -S fluxbox
# 


########################
# install stuff you like via pacman -S
########################

# to program lisp using emacs and sbcl, I installed:
pacman -S sbcl
pacman -S emacs



### I tried to install X11 on Termux, but this was too complicated
### I recommend rather to run X from inside TermuxArch in Termux!
# # install necessities
# # following: https://github.com/xeffyr/termux-extra-packages
# 
# # exit arch and in Termux(!) do:
# pkg install dirmngr
# apt-key adv --keyserver pool.sks-keyservers.net --recv 9D6D488416B493F0
# 
# # If you have a trouble with accessing key server, you can manually download public key and add it:
# 
# curl -LO https://raw.githubusercontent.com/xeffyr/termux-extra-packages/master/pubkey.asc
# apt-key add pubkey.asc
# 
# # I had to do $ pkg install curl
# 
# # open sources list
# nano $PREFIX/etc/apt/sources.list
# # in Termux, the 'root' is at $PREFIX!!
# 
# 
# # add the two lines into sources.list file:
#
# # Xeffyr's Extra packages
# deb https://termux.xeffyr.ml/ extra main x11