GoChroot.sh

#!/bin/bash

# 确保脚本以 root 用户执行
if [ "$(id -u)" -ne 0 ]; then
    echo "This script must be run as root."
fi

echo "mounting /dev/vda1 to /mnt"
# 挂载根分区
mount /dev/vda1 /mnt

# 检查挂载是否成功
if [ $? -ne 0 ]; then
    echo "Failed to mount /dev/vda1 to /mnt."
fi

echo "enabling swap on /dev/vda2"
# 启用交换分区
swapon /dev/vda2

# 检查 swapon 是否成功
if [ $? -ne 0 ]; then
    echo "Failed to enable swap on /dev/vda2."
fi

echo "generating fstab file"
# 保留 /mnt/etc/fstab 文件中的注释内容
grep '^#' /mnt/etc/fstab > /mnt/etc/fstab.new

# 生成新的 fstab 记录并追加到 /mnt/etc/fstab
genfstab -U /mnt >> /mnt/etc/fstab.new

# 检查 genfstab 是否成功
if [ $? -ne 0 ]; then
    echo "Failed to generate fstab."
fi

# 替换旧的 fstab 文件
mv /mnt/etc/fstab /mnt/etc/fstab.old
mv /mnt/etc/fstab.new /mnt/etc/fstab

echo "mouting other system direcotries :dev dev/pts proc sys run; "
# 挂载必要的系统文件夹
for dir in dev dev/pts proc sys run; do
  if mountpoint -q "/mnt/$dir"; then
    echo "/mnt/$dir is already mounted."
  else
    mount --bind "/$dir" "/mnt/$dir"
    # 如果要挂载的是 /dev，那么我们需要确保 /dev/pts 也被挂载
    if [ "$dir" == "dev" ]; then
      mount --bind /dev/pts /mnt/dev/pts
    fi
  fi
done

echo "entering chroot"
# 使用 arch-chroot 进入新环境
#arch-chroot /mnt
chroot /mnt