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@EncryptedCurse
EncryptedCurse committed Jul 19, 2021
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64 changes: 64 additions & 0 deletions README.md
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# manjaroid

Interactive shell script that creates a minimal Manjaro ARM Linux subsystem on [Termux](https://termux.com) with the power of [PRoot](https://wiki.termux.com/wiki/PRoot).

### Features

* Pre-configured VNC server
* Audio passthrough
* Emulated `/proc` entries for unrooted devices


## Installation

From Termux, download and execute the installation script with one command:
```
bash <(curl -s https://raw.githubusercontent.com/EncryptedCurse/manjaroid/master/install.sh)
```
Prompts will appear throughout the installation to determine the root directory, whether to install XFCE4, etc. If left blank, text prompts will default to the value within the parentheses and yes/no prompts will default to no.


## Usage

After installation, enter the subsystem using the automatically generated launch script:
```
./manjaroid.sh [username]
```
A username can be optionally specified to directly log into an (existing) account; otherwise, it will default to root.

After login, start the VNC server using the following command:
```
vncserver :1
```
You can use a VNC client like [RealVNC](https://www.realvnc.com) to connect to it (either locally or from a different device within the same network).


## Tips

### Use a different DE/WM

If you decline to install XFCE4 during setup or decide to switch to something else down the line, you will need to append/edit the following line to the end of `/etc/vnc/xstartup` to launch the new DE/WM:

```
exec dbus-launch <command>
```

### Disable XFCE4 shadows

```
xfconf-query -c xfwm4 -p /general/show_dock_shadow -s false
xfconf-query -c xfwm4 -p /general/show_frame_shadow -s false
xfconf-query -c xfwm4 -p /general/show_popup_shadow -s false
```

### Install Firefox

```
pacman -S firefox
```

### Install VS Code

```
pacman -S code libsecret gnome-keyring
```
334 changes: 334 additions & 0 deletions install.sh
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LOGO_COLOR='\e[1;32m'
MSG_COLOR='\e[1;35m'
PROMPT_COLOR='\e[1;33m'
RESET_COLOR='\e[0m'

function msg { echo -e "${MSG_COLOR}${1}${RESET_COLOR}"; }
function prompt { echo -ne "${PROMPT_COLOR}${1}${RESET_COLOR} "; }

echo -e "${LOGO_COLOR} _ _ _
_____ ___ ___ |_|___ ___ ___|_|_| |
| | .'| | | | .'| _| . | | . |
|_|_|_|__,|_|_|_| |__,|_| |___|_|___|
|___| ${RESET_COLOR}installer
"

# install Termux prerequisites
msg "Installing Termux prerequisites..."
pkg update -y && pkg install -y proot pulseaudio

# setup proot
prompt "Installation directory (~/manjaroid):"; read -r ROOTFS_DIR
ROOTFS_DIR="$(eval echo "${ROOTFS_DIR:-~/manjaroid}")"
mkdir -p "$ROOTFS_DIR"
msg "Downloading Manjaro ARM rootfs + setting up proot environment..."
ROOTFS_URL='https://osdn.net/projects/manjaro-arm/storage/.rootfs/Manjaro-ARM-aarch64-latest.tar.gz'
curl -L --retry 5 "$ROOTFS_URL" | proot -l tar -C "$ROOTFS_DIR" --preserve-permissions --delay-directory-restore -xzf -
rm -rf "${ROOTFS_DIR:?}/dev"

# create main (post-installation) launch script
msg "Creating $(pwd "$ROOTFS_DIR/..")/manjaroid.sh launch script..."
cat <<- EOF > "$ROOTFS_DIR/../manjaroid.sh"
unset LD_PRELOAD
ROOTFS_DIR="$ROOTFS_DIR"
[ -z \$1 ] || [ \${1,,} = "root" ] && HOME_DIR="/root" || HOME_DIR="/home/\$1"
PROOT_MOUNTS="-r "\$ROOTFS_DIR" -b /sdcard -b /system -b /sys -b /dev -b /proc -b "\$ROOTFS_DIR/tmp:/dev/shm""
for PROC in loadavg stat uptime version vmstat; do
if ! cat /proc/\$PROC > /dev/null 2>&1; then
PROOT_MOUNTS+=" -b "\$ROOTFS_DIR/proc/.\$PROC:/proc/\$PROC""
fi
done
pulseaudio --load="module-native-protocol-tcp auth-ip-acl=127.0.0.1 auth-anonymous=1" --exit-idle-time=-1 --start
proot --kill-on-exit --sysvipc -L -l -0 \$PROOT_MOUNTS -w \$HOME_DIR /usr/bin/env -i TERM=\$TERM /bin/sh --login
EOF
chmod +x "$ROOTFS_DIR/../manjaroid.sh"

# create fake /proc files for unrooted devices
msg "Creating fake /proc files..."
mkdir -p "$ROOTFS_DIR/proc"
chmod 700 "$ROOTFS_DIR/proc"
uname -a > "$ROOTFS_DIR/proc/.version"
echo '0.54 0.41 0.30 1/931 370386' > "$ROOTFS_DIR/proc/.loadavg"
echo '284684.56 513853.46' > "$ROOTFS_DIR/proc/.uptime"
cat <<- EOF > "$ROOTFS_DIR/proc/.stat"
cpu 1050008 127632 898432 43828767 37203 63 99244 0 0 0
cpu0 212383 20476 204704 8389202 7253 42 12597 0 0 0
cpu1 224452 24947 215570 8372502 8135 4 42768 0 0 0
cpu2 222993 17440 200925 8424262 8069 9 17732 0 0 0
cpu3 186835 8775 195974 8486330 5746 3 8360 0 0 0
cpu4 107075 32886 48854 8688521 3995 4 5758 0 0 0
cpu5 90733 20914 27798 1429573 2984 1 11419 0 0 0
intr 53261351 0 686 1 0 0 1 12 31 1 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7818 0 0 0 0 0 0 0 0 255 33 1912 33 0 0 0 0 0 0 3449534 2315885 2150546 2399277 696281 339300 22642 19371 0 0 0 0 0 0 0 0 0 0 0 2199 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2445 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 162240 14293 2858 0 151709 151592 0 0 0 284534 0 0 0 0 0 0 0 0 0 0 0 0 0 0 185353 0 0 938962 0 0 0 0 736100 0 0 1 1209 27960 0 0 0 0 0 0 0 0 303 115968 452839 2 0 0 0 0 0 0 0 0 0 0 0 0 0 160361 8835 86413 1292 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3592 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6091 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 35667 0 0 156823 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 138 2667417 0 41 4008 952 16633 533480 0 0 0 0 0 0 262506 0 0 0 0 0 0 126 0 0 1558488 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 8 0 0 6 0 0 0 10 3 4 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 1 1 83806 0 1 1 0 1 0 1 1 319686 2 8 0 0 0 0 0 0 0 0 0 244534 0 1 10 9 0 10 112 107 40 221 0 0 0 144
ctxt 90182396
btime 1595203295
processes 270853
procs_running 2
procs_blocked 0
softirq 25293348 2883 7658936 40779 539155 497187 2864 1908702 7229194 279723 7133925
EOF
cat <<- EOF > "$ROOTFS_DIR/proc/.vmstat"
nr_free_pages 146031
nr_zone_inactive_anon 196744
nr_zone_active_anon 301503
nr_zone_inactive_file 2457066
nr_zone_active_file 729742
nr_zone_unevictable 164
nr_zone_write_pending 8
nr_mlock 34
nr_page_table_pages 6925
nr_kernel_stack 13216
nr_bounce 0
nr_zspages 0
nr_free_cma 0
numa_hit 672391199
numa_miss 0
numa_foreign 0
numa_interleave 62816
numa_local 672391199
numa_other 0
nr_inactive_anon 196744
nr_active_anon 301503
nr_inactive_file 2457066
nr_active_file 729742
nr_unevictable 164
nr_slab_reclaimable 132891
nr_slab_unreclaimable 38582
nr_isolated_anon 0
nr_isolated_file 0
workingset_nodes 25623
workingset_refault 46689297
workingset_activate 4043141
workingset_restore 413848
workingset_nodereclaim 35082
nr_anon_pages 599893
nr_mapped 136339
nr_file_pages 3086333
nr_dirty 8
nr_writeback 0
nr_writeback_temp 0
nr_shmem 13743
nr_shmem_hugepages 0
nr_shmem_pmdmapped 0
nr_file_hugepages 0
nr_file_pmdmapped 0
nr_anon_transparent_hugepages 57
nr_unstable 0
nr_vmscan_write 57250
nr_vmscan_immediate_reclaim 2673
nr_dirtied 79585373
nr_written 72662315
nr_kernel_misc_reclaimable 0
nr_dirty_threshold 657954
nr_dirty_background_threshold 328575
pgpgin 372097889
pgpgout 296950969
pswpin 14675
pswpout 59294
pgalloc_dma 4
pgalloc_dma32 101793210
pgalloc_normal 614157703
pgalloc_movable 0
allocstall_dma 0
allocstall_dma32 0
allocstall_normal 184
allocstall_movable 239
pgskip_dma 0
pgskip_dma32 0
pgskip_normal 0
pgskip_movable 0
pgfree 716918803
pgactivate 68768195
pgdeactivate 7278211
pglazyfree 1398441
pgfault 491284262
pgmajfault 86567
pglazyfreed 1000581
pgrefill 7551461
pgsteal_kswapd 130545619
pgsteal_direct 205772
pgscan_kswapd 131219641
pgscan_direct 207173
pgscan_direct_throttle 0
zone_reclaim_failed 0
pginodesteal 8055
slabs_scanned 9977903
kswapd_inodesteal 13337022
kswapd_low_wmark_hit_quickly 33796
kswapd_high_wmark_hit_quickly 3948
pageoutrun 43580
pgrotated 200299
drop_pagecache 0
drop_slab 0
oom_kill 0
numa_pte_updates 0
numa_huge_pte_updates 0
numa_hint_faults 0
numa_hint_faults_local 0
numa_pages_migrated 0
pgmigrate_success 768502
pgmigrate_fail 1670
compact_migrate_scanned 1288646
compact_free_scanned 44388226
compact_isolated 1575815
compact_stall 863
compact_fail 392
compact_success 471
compact_daemon_wake 975
compact_daemon_migrate_scanned 613634
compact_daemon_free_scanned 26884944
htlb_buddy_alloc_success 0
htlb_buddy_alloc_fail 0
unevictable_pgs_culled 258910
unevictable_pgs_scanned 3690
unevictable_pgs_rescued 200643
unevictable_pgs_mlocked 199204
unevictable_pgs_munlocked 199164
unevictable_pgs_cleared 6
unevictable_pgs_stranded 6
thp_fault_alloc 10655
thp_fault_fallback 130
thp_collapse_alloc 655
thp_collapse_alloc_failed 50
thp_file_alloc 0
thp_file_mapped 0
thp_split_page 612
thp_split_page_failed 0
thp_deferred_split_page 11238
thp_split_pmd 632
thp_split_pud 0
thp_zero_page_alloc 2
thp_zero_page_alloc_failed 0
thp_swpout 4
thp_swpout_fallback 0
balloon_inflate 0
balloon_deflate 0
balloon_migrate 0
swap_ra 9661
swap_ra_hit 7872
EOF

# set DNS servers (Cloudflare) to fix internet connectivity inside proot environment
msg "Configuring /etc/resolv.conf..."
cat <<- EOF > "$ROOTFS_DIR/etc/resolv.conf"
nameserver 1.1.1.1
nameserver 1.0.0.1
nameserver 192.168.1.1
EOF

# set sensible startup defaults
msg "Configuring /etc/profile..."
cat <<- EOF >> "$ROOTFS_DIR/etc/profile"
export PATH=\$PATH:/system/bin:/system/xbin
export DISPLAY=":1"
export LANG=en_US.UTF-8
export PULSE_SERVER=127.0.0.1
export MOZ_FAKE_NO_SANDBOX=1
EOF

# create intermediate setup script to run within proot environment
msg "Creating intermediate setup script..."
cat <<- EOF > "$ROOTFS_DIR/etc/profile.d/setup.sh"
function msg { echo -e "${MSG_COLOR}\${1}${RESET_COLOR}"; }
function prompt { echo -ne "${PROMPT_COLOR}\${1}${RESET_COLOR} "; }
# initialize pacman
msg "Initializing pacman..."
pacman-mirrors -gf
pacman-key --init
pacman-key --populate
# install core packages
msg "Installing core packages..."
pacman -Syyuu --needed --noconfirm base manjaro-release sudo pulseaudio
# set locale and timezone
msg "Configuring 'en_US.UTF-8' locale..."
sed -i 's/#en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/g' /etc/locale.gen
locale-gen
msg "Configuring timezone..."
echo "export TZ=\$(tzselect)" >> /etc/profile
# optional: create sudo user
prompt "Create sudo user? [Y/n]"; read -n 1 CREATE_USER
CREATE_USER=\${CREATE_USER:-n}
if [[ \$CREATE_USER =~ [yY] ]]; then
prompt "Sudo username (manjaro):"; read USERNAME
USERNAME=\${USERNAME:-manjaro}
useradd -m -G wheel \$USERNAME
cat <<- FEO >> /etc/sudoers
%wheel ALL=(ALL) ALL
\$USERNAME ALL=(ALL) ALL
FEO
else
echo
fi
# optional: install and configure TigerVNC
prompt "Install TigerVNC? [Y/n]"; read -n 1 INSTALL_VNC
INSTALL_VNC=\${INSTALL_VNC:-n}
if [[ \$INSTALL_VNC =~ [yY] ]]; then
pacman -S --needed --noconfirm tigervnc
msg "Configuring TigerVNC..."
prompt "VNC resolution (1920x1080):"; read VNC_RESOLUTION
VNC_RESOLUTION=\${VNC_RESOLUTION:-1920x1080}
mkdir -p /etc/vnc
cat <<- FEO > /etc/vnc/config
Desktop=manjaroid
Geometry=\$VNC_RESOLUTION
SecurityTypes=VncAuth,TLSVnc
Localhost
FEO
cat <<- FEO > /etc/vnc/xstartup
unset SESSION_MANAGER
pulseaudio --start
[[ -r \$HOME/.Xresources ]] && xrdb \$HOME/.Xresources
FEO
chmod +x /etc/vnc/xstartup
else
echo
fi
# optional: install XFCE4
prompt "Install XFCE4? [Y/n]"; read -n 1 INSTALL_DE
INSTALL_DE=\${INSTALL_DE:-n}
if [[ \$INSTALL_DE =~ [yY] ]]; then
pacman -S --needed --noconfirm noto-fonts xfce4 xfce4-whiskermenu-plugin xfce4-pulseaudio-plugin pavucontrol
echo "exec dbus-launch startxfce4" >> /etc/vnc/xstartup
else
echo
fi
# delete pacman cache just in case
msg "Tidying pacman..."
paccache -rk0
# set user + VNC passwords
msg "Setting 'root' USER password..."
passwd
if [[ \$INSTALL_VNC =~ [yY] ]]; then
msg "Setting 'root' VNC password..."
vncpasswd
fi
if [[ \$CREATE_USER =~ [yY] ]]; then
msg "Setting '\$USERNAME' USER password..."
passwd \$USERNAME
if [[ \$INSTALL_VNC =~ [yY] ]]; then
msg "Setting '\$USERNAME' VNC password..."
su - \$USERNAME -c vncpasswd
fi
fi
# delete intermediate setup script
chmod 777 /etc/profile.d/setup.sh && rm -rf /etc/profile.d/setup.sh
exit
EOF
msg "Starting intermediate setup script..."
bash "$ROOTFS_DIR/../manjaroid.sh"

# change launch script to start interactive shell using 'su' now that it's installed (for multi-user compatibility)
sed -i 's/\/sh --login/\/su - $1/g' "$ROOTFS_DIR/../manjaroid.sh"

msg "Done!"

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