Hi everyone
I've ran an update on my pihole and it seems the OS is blocking the update so after running pihole -up I ran sudo apt update and got the following down below.
Please can someone help
pi@raspberrypi:~ $ pihole -up
[✗] Update local cache of available packages
Error: Unable to update package cache. Please try "sudo apt update"
pi@raspberrypi:~ $ sudo apt update
Hit:1 h ttp://archive.raspberrypi.org/debian buster InRelease
Hit:2 h ttp://raspbian.raspberrypi.org/raspbian buster InRelease
Get:3 ht tp://debdebian.org/debian buster-backports InRelease [51.4 kB]
Err:3 ht tp://deb.debian.org/debian buster-backports InRelease
The following signatures couldn't be verified because the public key is not av ailable: NO_PUBKEY 648ACFD622F3D138 NO_PUBKEY 0E98404D386FA1D9
Reading package lists... Done
W: GPG error: Index of /debian buster-backports InRelease: The follo wing signatures couldn't be verified because the public key is not available: NO _PUBKEY 648ACFD622F3D138 NO_PUBKEY 0E98404D386FA1D9
E: The repository 'h ttp://deb.debian.org/debian buster-backports InRelease' is n ot signed.
N: Updating from such a repository can't be done securely, and is therefore disa bled by default.
N: See apt-secure(8) manpage for repository creation and user configuration deta ils.
I've put spaces in between the http to get around the new post link issue
Many Thanks
Ryan