라즈베리파이 비밀번호 리셋(초기화) 방법

라즈베리파이 비밀번호 리셋(초기화) 방법

(출처: http://www.raspberrypi-spy.co.uk/2014/08/how-to-reset-a-forgotten-raspberry-pi-password )

 

 

Step 1 – Grab The SD Card

Power down the Pi and remove the SD card. Insert it into your PC.

Step 2 – Edit cmdline.txt

The boot partition should be visible and contain a file named “cmdline.txt”. Edit this file in a text editor and add the following to the end of the existing text :

init=/bin/sh

If the original content was :

dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait

it should now look like :

dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait init=/bin/sh

Make sure it is all one line! Save the text file and eject the SD card from the PC.

Step 3 – Reset the Password

Insert the card into a Pi that is connected to a monitor and keyboard. Power up the Pi. There may be a delay but you should be presented with a flashing cursor.

At the prompt type the following command :

passwd pi

You will then be prompted for a new password. Enter it carefully and press the [Return] key. It will now ask you to retype the password.

The password has been changed.

Now type the following commands :

sync
exec /sbin/init

The Pi will continue to boot and return you to the normal command line prompt.

Shutdown the Pi and power it off.

sudo halt

Step 4 – Edit cmdline.txt

Using the PC edit the “cmdline.txt” file again and remove the “init=/bin/sh” text you added in Step 2.

You can now return the SD card to your Pi, reboot and use the new password. 

감사합니다.

이제 "행복랜드 행부장 유튜브"에서 돕겠습니다.

자세한 내용은 http://sns4u.tistory.com/191?category=773568 을 참고하시길.