How to run voidlinux on termux using chroot 🚧 IN PROGRESS 🚧

Requirements

• root
• busybox Magisk and KernelSU ships with a feature complete binary so you wont need to install this one if your using them as root solutions

Busybox binary locations for KernelSU and Magisk

• magisk: /data/adb/magisk/busybox
• kernelsu: /data/adb/ksu/bin

Getting the rootfs

https://voidlinux.org/download/

If your download is slow on the default repo link try the other mirrors on https://xmirror.voidlinux.org

All live images and rootfs tarballs are usually at: https://[repo.url]/live/current

Make sure to pick the right architecture for your device

Extract the rootfs and setup sdcard mountpoint

The rootfs should only be extracted on the directories under /data because the partition is formatted in ext4 1

I myself put mine on termux's home directory: ~/void

mkdir void

cd void

# Change void-rootfs.tar.xz into  the path of your rootfs
tar xpvf void-rootfs.tar.xz --numeric-owner
# TODO: add an explanation on the flags used in the command

# Optional - add sdcard mountpoint
mkdir -p mnt/sdcard

Make the startup script

Provided below is a startup script. The script be used to start to start the chroot session. Before the script works you must change the variables in the config section with their correspanding values.

• BUSYBOX_BIN: Location of your busybox binary. if you installed it using the termux package manager then you can leave it as blank
• ROOTFS: Location/Path to where you extracted the rootfs
• USER: You don't need to replace it for now. We will though, after we are done with the setup and adding of a non root user
• sdcard mountpoint: Make sure you remove the lines specified below if you did not make the sdcard mountpoint from the previous section

#!/data/data/com.termux/files/usr/bin/sh

# Config
BUSYBOX_BIN=[path/to/busybox/bin/dir]
ROOTFS=[path/to/where/you/extracted/rootfs]
USER=$1
# End Config

export PATH="/bin:/sbin:/usr/bin:/usr/sbin:$BUSYBOX_BIN"

# fix /dev mount options
busybox mount -o remount,dev,suid /data

busybox mount --bind /dev $ROOTFS/dev
busybox mount --bind /sys $ROOTFS/sys
busybox mount --bind /proc $ROOTFS/proc
busybox mount --bind /dev/pts $ROOTFS/dev/pts
busybox mount --bind /storage/emulated/0 $ROOTFS/mnt/sdcard # Remove this line if you did not make the sdcard mountpoint

# disable termux-exec
unset LD_PRELOAD

export TERM=$TERM
export TMPDIR=/tmp

chroot $ROOTFS /bin/su - $USER

echo "unmounting"

busybox umount $ROOTFS/dev/pts
busybox umount $ROOTFS/proc
busybox umount $ROOTFS/sys
busybox umount $ROOTFS/dev
busybox umount $ROOTFS/mnt/sdcard # Remove this line if you did not make the sdcard mountpoint

Backing up your rootfs

sudo tar -czpf ~/void-backup.tar.gz -C [extracted-rootfs-dir] \
    --exclude=./tmp/* \
    --exclude=./proc/* \
    --exclude=./sys/* \
    --exclude=./dev/* \
    --exclude=./run/* \
    --one-file-system \
    .

References

[2]: [Root] Install Ubuntu in chroot on Android without Linux Deploy - https://ivonblog.com/en-us/posts/termux-chroot-ubuntu/