Setting Up Alpine Linux [ TERMUX NO ROOT ] on QEMU + Docker + SSH

Setting Up Alpine Linux on QEMU + Docker + SSH (Termux no root required)

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In this post, we'll go through how to set up Alpine Linux on QEMU. This includes downloading the Alpine ISO, creating a virtual machine, configuring network interfaces, and installing Docker. Let's dive into the steps:

1. Update and Install Required Packages
pkg update && pkg upgrade
pkg install qemu-utils qemu-common qemu-system-x86_64-headless

2. Create a Directory for Alpine Linux
mkdir ~/alpine && cd ~/alpine

3. Download the Alpine ISO
https://dl-cdn.alpinelinux.org/alpine/v3.12/releases/x86_64/alpine-virt-3.12.3-x86_64.iso

4. Create a Virtual Machine Image
qemu-img create -f qcow2 alpine.img 20G

5. Start Alpine Linux in QEMU
qemu-system-x86_64 -machine q35 -m 1024 -smp cpus=2 -cpu qemu64 -drive if=pflash,format=raw,read-only,file=$PREFIX/share/qemu/edk2-x86_64-code.fd -netdev user,id=n1,hostfwd=tcp::2222-:22 -device virtio-net,netdev=n1 -cdrom alpine-virt-3.12.3-x86_64.iso -nographic alpine.img

6. Login as Root User
login: root
Password: (no password, just press Enter)

7. Run the Alpine Setup Script
localhost:~# setup-interfaces

8. Enable Network Interface (eth0)
localhost:~# ifup eth0

8.1- Try to ping if it works move to step 9
$ ping google.com

8.2- if no internet follow the process else move to step 9
$ service networking restart
$ echo "nameserver 8.8.8.8" > /etc/resolv.conf

9. Download an Answerfile for Automation
wget https://raw.githubusercontent.com/efxtv/EFX-Tv-Bookmarks/refs/heads/main/bin/alpine/answerfile

--The answerfile should contain the following configuration--
vi answerfile
-------------------------------------------------------------
KEYMAPOPTS="us us"
HOSTNAMEOPTS="-n alpine"
INTERFACESOPTS="auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp
    hostname alpine
"
TIMEZONEOPTS="-z UTC"
PROXYOPTS="none"
APKREPOSOPTS="http://dl-cdn.alpinelinux.org/alpine/v3.12/main http://dl-cdn.alpinelinux.org/alpine/v3.12/community"
SSHDOPTS="-c openssh"
NTPOPTS="-c busybox"
DISKOPTS="-v -m sys -s 0 /dev/sda"
-------------------------------------------------------------

10. Modify Setup Disk Configuration
localhost:~# sed -i -E 's/(local kernel_opts)=.*/\1="console=ttyS0"/' /sbin/setup-disk

11. Run the Setup Script
localhost:~# setup-alpine -f answerfile

11.1 - Just press y and hit enter
Erase the above disk(s) and continue? [y/N]: y

12. Shutdown the Virtual Machine
localhost:~# poweroff

13. Start Alpine Again
qemu-system-x86_64 -machine q35 -m 1024 -smp cpus=2 -cpu qemu64 -drive if=pflash,format=raw,read-only,file=$PREFIX/share/qemu/edk2-x86_64-code.fd -netdev user,id=n1,hostfwd=tcp::2222-:22 -device virtio-net,netdev=n1 -nographic alpine.img

14. Update Alpine and Install Docker
apk update && apk add docker
service docker start
rc-update add docker

EXTRA FIX
1. Restart network manager
service networking restart

Read  to fix networking issues https://wiki.alpinelinux.org/wiki/Configure_Networking

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