Vultr Root password 변경하기

Vultr Root password 변경하기

https://www.vultr.com/docs/reset-the-root-password-on-ubuntu/#:~:text=Press%20CTRL%20%2B%20X%20or%20F10,to%20change%20the%20root%20password.

1. As the system boots, press ESC to bring up the GRUB boot prompt. The prompt happens early in the boot process. If you miss the prompt, you need to restart the server from the control panel and try again.
2. At the GRUB boot prompt, press E to edit the first boot option.
3. Find the kernel line starting with linux /boot/.
4. Add a space and the text init=/bin/bash to the end of the line.
5. Press CTRL+X or F10 to boot into single-user mode.
6. The system will boot and you will see the root prompt.
7. Run mount -o remount,rw / to mount the system volume.
8. Run passwd and follow the prompts to change the root password.
9. Reboot the server.

   # exec /sbin/init