autobuild

Auto build rootfs(ubuntu-base), especially for riscv64.

The init proc (here is the ./busybox) is from busybox rootfs.

The init proc will run rcS, in which I place some simple commands, include:

• mount proc & sysfs
• exec neofetch to print some system information
• change to bash by executing /bin/bash

Due to neofetch is little slow, I change neofetch to pfetch.

Usage:

sudo ./mk-base-ubuntu.sh riscv64
./mk-ubuntu-rootfs.sh riscv64

You can get the ubuntu-rootfs.ext4. It is a simple rootfs, mainly used for experiments.

Test:

Use this command to simply test.

qemu-system-riscv64 -machine virt,aclint=on,aia=aplic-imsic \
        -bios default -cpu rv64 -smp 4 -m 4G -nographic \
        -kernel ./Image \
        -drive if=none,file=./ubuntu-rootfs.ext4,id=hd1,format=raw \
        -device virtio-blk-device,drive=hd1 \
        -append "root=/dev/vda rw console=ttyS0"

You can get:

Note: Please don't use in production environment.

Reference:

This is not completely original, and based on:

• https://github.com/LubanCat/sophon-image-build

• https://github.com/kvm-riscv/howto