mini-os/1.new_chroot at amd64 · devbeta-hcode/mini-os · GitHub

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#!/bin/bash
# noble	24.04 LTS	mới nhất (2024)
# jammy	22.04 LTS	ổn định phổ biến
# focal	20.04 LTS	lâu dài, ổn định
# bionic	18.04 LTS	cũ

sudo apt update
sudo apt install -y mtools xorriso qemu-system
sudo apt install debootstrap squashfs-tools xorriso grub-pc-bin grub-efi-amd64-bin
sudo mkdir -p build/chroot
# sudo chown -R hcode:hcode build/chroot # hcode:hcode = $USER:$USER
# sudo chmod -R u+rw build/chroot
sudo debootstrap --arch=amd64 noble build/chroot http://archive.ubuntu.com/ubuntu


# vào chroot
sudo rm -f build/chroot/etc/resolv.conf
sudo cp /etc/resolv.conf build/chroot/etc/resolv.conf
sudo mount -t proc proc build/chroot/proc
sudo mount -t sysfs sys build/chroot/sys
sudo mount --bind /dev build/chroot/dev
sudo mkdir -p build/chroot/dev/pts
sudo mount -t devpts devpts build/chroot/dev/pts

# vào choot
sudo chroot build/chroot
export HOME=/root
export LC_ALL=C

# thực thi lệnh trong chroot k cần vào chroot
sudo chroot build/chroot apt update

# cập nhật cho live-boot trong chroot
nano /etc/apt/sources.list

    # Thay nội dung thành (cho Ubuntu 24.04 Noble):
        deb http://archive.ubuntu.com/ubuntu noble main universe
        deb http://archive.ubuntu.com/ubuntu noble-updates main universe
        deb http://archive.ubuntu.com/ubuntu noble-security main universe

    # Nếu bạn dùng Ubuntu 22.04 (Jammy):
        deb http://archive.ubuntu.com/ubuntu jammy main universe
        deb http://archive.ubuntu.com/ubuntu jammy-updates main universe
        deb http://archive.ubuntu.com/ubuntu jammy-security main universe

# cài đặt cần thiết trong chroot
apt update
apt install -y lvm2 gdisk parted dosfstools rsync
apt install -y live-boot live-boot-initramfs-tools live-tools live-config-systemd
apt install -y grub-pc-bin grub-efi-amd64-bin grub-common
apt install -y grub-efi grub-efi-amd64 grub-efi-amd64-signed shim-signed
apt install -y net-tools openssh-server systemd-sysv nano
apt install -y systemd-networkd systemd-resolved
apt install -y linux-image-generic
apt install -y locales
apt install -y landscape-client
locale-gen en_US.UTF-8
update-locale LANG=en_US.UTF-8
export LANG=en_US.UTF-8
export LC_ALL=en_US.UTF-8

# cài đặt mật khẩu root trong chroot
echo "root:1234" | chpasswd

# Tạo file cấu hình mạng tự động: trong chroot
mkdir -p /etc/systemd/network
cat <<EOF > /etc/systemd/network/20-wired.network
[Match]
Name=en*

[Network]
DHCP=yes
EOF
ln -sf /run/systemd/resolve/resolv.conf /etc/resolv.conf
systemctl enable systemd-networkd
systemctl enable systemd-resolved

# cập nhât trong chroot
update-initramfs -u -k all

# thoát chroot
exit

# gỡ mount
sudo umount build/chroot/dev/pts
sudo umount build/chroot/dev
sudo umount build/chroot/sys
sudo umount build/chroot/proc