掛載個硬盤，沒有測試，FSTAB填錯， 就起不來了，
搞個啟動u盤，然后重啟進入系統，
命令行：
manjaro-chroot -a
修改FSTAB，保存重啟，搞定。
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If you are unable to recover using the installed system you can use another medium such as a CD or USB
Create or just reuse an already existing Manjaro Live USB (such as the one you used to install your system).
Once booted in the live system issue the following command in the terminal:
manjaro-chroot -a
Follow the prompts and you should have access to your installed system.
