首先检查电源和硬件，然后验证引导程序（如GRUB），接着检查内核加载情况，再审查初始化进程，最后确认登录提示符是否可用。

If you cannot boot Linux, try these steps: 1. Check power and hardware. 2. Verify bootloader (e.g., GRUB). 3. Examine kernel loading. 4. Review init process. 5. Confirm login prompt availability.