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‎.gitignore‎

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**/build/*
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**/releases/*

‎1.new_chroot‎

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#!/bin/bash
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# noble 24.04 LTS mới nhất (2024)
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# jammy 22.04 LTS ổn định phổ biến
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# focal 20.04 LTS lâu dài, ổn định
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# bionic 18.04 LTS cũ
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sudo apt update
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sudo apt install mtools xorriso -y
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sudo apt install qemu-system
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sudo apt install debootstrap squashfs-tools xorriso grub-pc-bin grub-efi-amd64-bin
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sudo mkdir -p build/chroot
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sudo chown -R hcode:hcode build/chroot # hcode:hcode = $USER:$USER
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sudo chmod -R u+rw build/chroot
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sudo debootstrap --arch=amd64 noble build/chroot http://archive.ubuntu.com/ubuntu
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# vào chroot
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sudo rm -f build/chroot/etc/resolv.conf
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sudo cp /etc/resolv.conf build/chroot/etc/resolv.conf
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sudo mount -t proc proc build/chroot/proc
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sudo mount -t sysfs sys build/chroot/sys
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sudo mount --bind /dev build/chroot/dev
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sudo mkdir -p build/chroot/dev/pts
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sudo mount -t devpts devpts build/chroot/dev/pts
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# vào choot
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sudo chroot build/chroot
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export HOME=/root
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export LC_ALL=C
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# thực thi lệnh trong chroot k cần vào chroot
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sudo chroot build/chroot apt update
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# cập nhật cho live-boot trong chroot
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nano /etc/apt/sources.list
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# Thay nội dung thành (cho Ubuntu 24.04 Noble):
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deb http://archive.ubuntu.com/ubuntu noble main universe
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deb http://archive.ubuntu.com/ubuntu noble-updates main universe
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deb http://archive.ubuntu.com/ubuntu noble-security main universe
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# Nếu bạn dùng Ubuntu 22.04 (Jammy):
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deb http://archive.ubuntu.com/ubuntu jammy main universe
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deb http://archive.ubuntu.com/ubuntu jammy-updates main universe
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deb http://archive.ubuntu.com/ubuntu jammy-security main universe
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# cài đặt cần thiết trong chroot
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apt update
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apt install -y lvm2 gdisk parted dosfstools rsync
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apt install -y live-boot live-boot-initramfs-tools live-tools live-config-systemd
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apt install -y grub-pc-bin grub-efi-amd64-bin grub-common
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apt install -y grub-efi grub-efi-amd64 grub-efi-amd64-signed shim-signed
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apt install net-tools openssh-server systemd-sysv nano
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apt install systemd-networkd systemd-resolved
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apt install linux-image-generic -y
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apt install locales -y
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locale-gen en_US.UTF-8
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update-locale LANG=en_US.UTF-8
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export LANG=en_US.UTF-8
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export LC_ALL=en_US.UTF-8
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echo 'LANG="en_US.UTF-8"' > /etc/default/locale
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# cài đặt mật khẩu root trong chroot
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echo "root:1234" | chpasswd
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# Tạo file cấu hình mạng tự động: trong chroot
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mkdir -p /etc/systemd/network
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cat <<EOF > /etc/systemd/network/20-wired.network
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[Match]
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Name=en*
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[Network]
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DHCP=yes
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EOF
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ln -sf /run/systemd/resolve/resolv.conf /etc/resolv.conf
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systemctl enable systemd-networkd
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systemctl enable systemd-resolved
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# đăng nhập ssh bằng root trong chroot
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sed -i 's/^#*PermitRootLogin.*/PermitRootLogin yes/' /etc/ssh/sshd_config
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sed -i 's/^#*PasswordAuthentication.*/PasswordAuthentication yes/' /etc/ssh/sshd_config
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systemctl enable ssh
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# set các thông tin cho custom ubuntu trong chroot
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echo "Welcome Ubuntu Lite by DEV BETA.,JSC (2025)" > /etc/motd
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echo "ubuntu-lite" > /etc/hostname
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# cập nhât trong chroot
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update-initramfs -u -k all
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# thoát chroot
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exit
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# gỡ mount
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sudo umount build/chroot/dev/pts
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sudo umount build/chroot/dev
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sudo umount build/chroot/sys
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sudo umount build/chroot/proc

‎README.md‎

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# mini-os
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# Tạo release
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gh release create v1.0 releases/minios-chroot.tar.gz --title "MiniOS v1.0" --notes "Initial mini system"

‎build_live_boot‎

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#!/bin/bash
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# Yêu cầu quyền sudo nếu không phải root
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if [[ $EUID -ne 0 ]]; then
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echo "⚠️ This script must be run as root (sudo)"
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exec sudo "$0" "$@"
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exit 1
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fi
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BUILD_DIR="build/live_boot"
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CHROOT="build/chroot"
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OUTPUT="releases/mini-os.iso"
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set -e
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rm -r $BUILD_DIR
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mkdir -p $BUILD_DIR
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mkdir -p $BUILD_DIR/live
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# Copy kernel và initrd
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cp -a $CHROOT/boot/vmlinuz-6.8.0-31-generic $BUILD_DIR/live/vmlinuz
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cp -a $CHROOT/boot/initrd.img-6.8.0-31-generic $BUILD_DIR/live/initrd
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# update menu GRUB
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mkdir -p $BUILD_DIR/boot/grub
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cp -a config/grub_live_boot.cfg $BUILD_DIR/boot/grub/grub.cfg
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# pack squashfs
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bash clear_cache
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echo "🧱 File size: $(du -sh $CHROOT)"
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rm -rf $BUILD_DIR/live/filesystem.squashfs
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mksquashfs $CHROOT $BUILD_DIR/live/filesystem.squashfs
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#Build ISO boot
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rm -rf $OUTPUT
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grub-mkrescue -o $OUTPUT $BUILD_DIR --modules="linux normal iso9660 memdisk search tar ls" --xorriso=/usr/bin/xorriso
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echo "✅ hoàn thành: $OUTPUT"
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‎build_rootfs‎

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#!/bin/bash
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# Yêu cầu quyền sudo nếu không phải root
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if [[ $EUID -ne 0 ]]; then
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echo "⚠️ This script must be run as root (sudo)"
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exec sudo "$0" "$@"
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exit 1
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fi
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BUILD_DIR="build/rootfs"
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CHROOT="build/chroot"
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OUTPUT="releases/mini-os.iso"
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set -e
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rm -r $BUILD_DIR
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mkdir $BUILD_DIR
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mkdir $BUILD_DIR/boot
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# Tạo rootfs
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bash clear_cache
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echo "🧱 File size: $(du -sh $CHROOT)"
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cp -a $CHROOT/* $BUILD_DIR
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# Copy kernel và initrd
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cp -a $CHROOT/boot/vmlinuz-6.8.0-31-generic $BUILD_DIR/boot/vmlinuz
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cp -a $CHROOT/boot/initrd.img-6.8.0-31-generic $BUILD_DIR/boot/initrd
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# update menu GRUB
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mkdir -p $BUILD_DIR/boot/grub
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cp -a config/grub_rootfs.cfg $BUILD_DIR/boot/grub/grub.cfg
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#Build ISO boot
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rm -rf $OUTPUT
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grub-mkrescue -o $OUTPUT $BUILD_DIR --modules="linux normal iso9660 memdisk search tar ls" --xorriso=/usr/bin/xorriso
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echo "✅ hoàn thành: $OUTPUT"
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‎clear_cache‎

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#!/bin/bash
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# set -e
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# Yêu cầu quyền sudo nếu không phải root
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if [[ $EUID -ne 0 ]]; then
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echo "⚠️ This script must be run as root (sudo)"
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exec sudo "$0" "$@"
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exit 1
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fi
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CHROOT="build/chroot"
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echo "🧹 Đang dọn sạch chroot: $CHROOT"
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# Gỡ mount còn tồn tại
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echo "🔄 Gỡ tất cả mount trong $CHROOT nếu còn..."
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sudo mount | grep "$CHROOT" | awk '{print $3}' | sort -r | xargs -r sudo umount -lf
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# cập nhật lại dns
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cat > "$CHROOT/etc/resolv.conf" <<EOF
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nameserver 8.8.8.8
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nameserver 8.8.4.4
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EOF
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# Dọn dẹp các vùng không cần thiết
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sudo rm -rf $CHROOT/tmp/*
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sudo rm -rf $CHROOT/var/tmp/*
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sudo rm -rf $CHROOT/var/log/*
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sudo rm -rf $CHROOT/var/log/journal/*
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sudo rm -rf $CHROOT/var/cache/*
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sudo rm -rf $CHROOT/var/spool/*
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sudo rm -rf $CHROOT/var/mail/*
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sudo rm -rf $CHROOT/var/backups/*
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sudo rm -rf $CHROOT/var/opt/*
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sudo rm -rf $CHROOT/var/local/*
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sudo rm -rf $CHROOT/etc/cloud $CHROOT/var/lib/cloud $CHROOT/var/run/cloud-init
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sudo rm -rf $CHROOT/var/log/cloud-init*
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sudo rm -f $CHROOT/root/.bash_history
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sudo rm -f $CHROOT/home/*/.bash_history
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# Dọn PID/socket
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sudo find $CHROOT/var/lock -type f -delete
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sudo find $CHROOT/var/run -name '*.pid' -delete
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sudo find $CHROOT/var/run -name '*.lock' -delete
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# Tạo lại cấu trúc thư mục thiết yếu
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echo "🧱 Tạo lại cấu trúc /var tối thiểu..."
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sudo mkdir -p $CHROOT/var/{cache,lib,log,mail,opt,spool,tmp,local,backups}
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sudo mkdir -p $CHROOT/var/run
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sudo mkdir -p $CHROOT/var/lock
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sudo chmod 1777 $CHROOT/var/tmp
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sudo chmod 1777 $CHROOT/var/lock
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[ -L "$CHROOT/var/run" ] || sudo ln -sf /run $CHROOT/var/run
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[ -L "$CHROOT/var/lock" ] || sudo ln -sf /run/lock $CHROOT/var/lock
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# Cho dpkg và apt nếu cần
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sudo mkdir -p $CHROOT/var/lib/dpkg
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sudo mkdir -p $CHROOT/var/lib/apt/lists
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sudo mkdir -p $CHROOT/var/lib/systemd
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sudo mkdir -p $CHROOT/var/lib/landscape
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sudo touch $CHROOT/var/lib/dpkg/status
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sudo touch $CHROOT/var/lib/dpkg/available
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echo "✅ Dọn sạch và tái tạo chroot xong!"

‎config/grub_live_boot.cfg‎

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set default=0
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set timeout=5
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menuentry "Install MiniOS [DEV BETA.,JSC (2025)]" {
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linux /live/vmlinuz boot=live from=/live/ root=/dev/sr0 ro
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initrd /live/initrd
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}

‎config/grub_rootfs.cfg‎

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set default=0
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set timeout=5
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menuentry "Install MiniOS [DEV BETA.,JSC (2025)]" {
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linux /boot/vmlinuz root=/dev/sr0 ro
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initrd /boot/initrd
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}

‎node.txt‎

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sudo nano /usr/local/bin/proxy-install
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sudo chmod +x /usr/local/bin/proxy-install
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sudo nano /usr/local/bin/ubuntu-lite-install
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sudo chmod +x /usr/local/bin/ubuntu-lite-install
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which mini-os-install
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sudo apt install -y xorriso
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// bắt đầu tạo phân vùng gắn kết
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sudo mkdir -p /mnt/rootfs /mnt/efi
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sudo mount /dev/sda2 /mnt/rootfs
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sudo mount /dev/sda1 /mnt/rootfs/boot/efi
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sudo mkdir -p /mnt/rootfs/EFI/boot
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### sudo cp -a /mnt/rootfs/boot/efi/EFI/ubuntu/. /mnt/rootfs/EFI/boot/
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sudo cp /mnt/rootfs/boot/efi/EFI/ubuntu/grubx64.efi /mnt/rootfs/EFI/boot/bootx64.efi
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sudo ./bankup_iso.sh
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sudo apt install -y make build-essential
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sudo apt install squashfs-tools
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sudo ln -sf /etc/systemd/system/proxyV4DN.service /etc/systemd/system/multi-user.target.wants/proxyV4DN.service
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sudo apt purge --auto-remove plymouthd
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// gỡ những gói k cần thiết
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sudo apt purge --auto-remove cloud-init snapd avahi-daemon popularity-contest whoopsie popularity-contest ubuntu-release-upgrader-*
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// các ứng dụng đang bật nhưng k dùng
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sudo systemctl list-unit-files --state=enabled
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// fix lai sh file

‎qemu_test‎

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#!/bin/bash
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qemu-system-x86_64 -m 2048 -cdrom dist/ubuntu-lite.iso -boot d

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