甲骨文实例通用快速救砖

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甲骨文 AMD & ARM 救砖教程

挂载折腾坏了的实例的引导卷到同账号其他甲骨文实例。
执行 lsblk 看看挂载的卷设备名，一般是 sdb,

1.1 救砖甲骨文 AMD 执行

curl -Lo- "https://cloud.debian.org/images/cloud/bullseye/latest/debian-11-nocloud-amd64.tar.xz" | tar -xJO | dd of=/dev/sdb bs=1M

如果需要 Debian 12 系统，则执行

curl -Lo- "https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-nocloud-amd64.tar.xz" | tar -xJO | dd of=/dev/sdb bs=1M

1.2 救砖甲骨文 ARM 执行

curl -Lo- "https://cloud.debian.org/images/cloud/bullseye/latest/debian-11-nocloud-arm64.tar.xz" | tar -xJO | dd of=/dev/sdb bs=1M

如果需要 Debian 12 系统，则执行

curl -Lo- "https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-nocloud-arm64.tar.xz" | tar -xJO | dd of=/dev/sdb bs=1M

DD 过程大约 2.5 分钟。

2 完成后分离卷挂载回原实例。
启动实例。

3 点击“控制台连接”下级菜单的启动“Cloud Shell 连接”。
强制重启实例。
看到实例启动后，使用用户名 root 密码空登录实例。
用命令 passwd 设置 root 密码。

cat << 'EOF' > setup_ssh_custom_port.sh
#!/bin/bash

# Prompt user to set root password
read -p "Do you want to set the root password? (y/n, default: n)" set_root_password
set_root_password=${set_root_password:-n}
if ["$set_root_password" == "y"]; then
    echo "Please enter the new root password:"
    read -s root_password
    # Set root password
    echo "root:$root_password" | sudo chpasswd
    echo "Root password has been set."
fi

# Update package list
echo "Updating package list..."
sudo apt update -q >/dev/null 2>&1

# Install SSH (quiet mode)
echo "Installing SSH..."
sudo apt install -y -q openssh-server >/dev/null 2>&1

# Start SSH service and enable it to start on boot
sudo systemctl start ssh
sudo systemctl enable ssh >/dev/null 2>&1

# Prompt user to change SSH port
read -p "Do you want to set a custom SSH port? (y/n, default: n)" set_ssh_port
set_ssh_port=${set_ssh_port:-n}
if ["$set_ssh_port" == "y"]; then
    echo "Please enter the custom SSH port:"
    read ssh_port
    # Change SSH configuration to use custom port
    sudo sed -i "s/#Port 22/Port $ssh_port/" /etc/ssh/sshd_config
    # Update firewall settings to allow custom SSH port
    sudo ufw allow $ssh_port/tcp
    echo "SSH port has been set to $ssh_port."
fi

# Permit root login and enable password authentication
sudo sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config
sudo sed -i 's/#PasswordAuthentication yes/PasswordAuthentication yes/' /etc/ssh/sshd_config

# Restart SSH service
sudo systemctl restart ssh

echo "SSH installation and configuration complete. Please be aware of the security risks."
EOF

bash setup_ssh_custom_port.sh

至此服务器已经可以远程 ssh 登录，救砖完成。

正文完