The Fastoe Blog

News and technical documents for all things Fastoe.

How to Fix RetroPie EXT4-fs Error (device mmcblk0p2) ext4_find_entry

I am getting EXT4-fs error (device mmcblk0p2) ext4_find_entry on Raspberry Pi 4 (RetroPie) randomly.

I have tried a few solutions:

  1. Flash the RetroPie official OS to the micro SD card.
  2. Replace with a new micro SD card.
  3. Try to fix it by fsck command.

but the problem happened again.


I found it was a power problem, replace your power supply.