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If you are Experiencing issues with a Pi-hole install that has non-standard elements (e.g you are using nginx instead of lighttpd, or there is some other aspect of your install that is customised) - please use the Community Help category.
Expected Behaviour:
I've been using pihole on a pi3 for around four years. I was using Dietpi buster and was EOL where there were no more updates. I tried updating pihole and it failed saying something along the lines of debian 10 not supported. So I upgraded dietpi to bullseye and now I'm having more issues.
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=debian
RPi 3 Model B (aarch64)
Actual Behaviour:
root@PiHole:~# pihole -up
/opt/pihole/update.sh: line 108: : No such file or directory
on a browser 192.168.0.3/admin/index.php shows 404
192.168.0.3/admin shows 403 Forbidden
When you say "update" from Dietpi Buster to Bullseye, do you mean an in-place upgrade or did you create a whole new image on your device and start from scratch?
In my case, the root cause was a missing dependency; this message appeared along with the file not found (line 108) message you used. Maybe that thread will help you find what is triggering the error.
Try sudo pihole -r also to see if that gives any additional hints.
After removing one of the suggestions I came across, I ran pihole -r and now it seems to be working fine. It did prompt to disable lighttpd, which I did.
