Hardware
-Raspberry Pi 4 Model B
Problems
- Working on Raspberry Pi recently on my robotics project, I altered /etc/rc.local to setup an auto job and this has caused my system unable to boot properly.
Solutions
- Remove the SD Card from Raspberry Pi, mount it to your computer
- Look for cmdline.txt, alter the file based on the value in bold
- Original
console=tty1 root=PARTUUID=9f7945f8-02 rootfstype=ext4 elevator=deadline
fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles- Altered
console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline
fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles
init=/bin/sh
- Insert the SD Card back to the Raspberry Pi board again, reboot the system.
- Run command below to allowed the write access to the SD Card
mount -o remount, rw /
- I reset my "pi" account password
sudo passwd pi
- Remove the SD Card again from Raspberry Pi, mount it to computer.
- Revert to the original command in cmdline.txt
- Insert the SD Card back to the Raspberry Pi board again, reboot the system
