Fix for: Raspberry Pi Debian ARMv7 To fix ERROR: Couldn’t determine iptables version, go to your terminal and enter this command: update-alternatives –list iptables You may get this result: Now type this command to fix the problem: That’s it.
Fix for Raspberry PI Debian ARMv71 Date October 2021 To fix this error:N: Repository ‘http://raspbian.raspberrypi.org/raspbian buster InRelease’ changed its ‘Suite’ value from ‘stable’ to ‘oldstable’ sudo nano /etc/apt/sources.list.d/raspi.list Add this at the end: deb https://archive.raspberrypi.org/debian/ bullseye main Save and exit Then try to update the system sudo apt-get update It should be okey.