Suddenly unable to Update FTL. Not sure what to do

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Hi Guys, I've got a R pi 4 running RasbianOS and i've been running a Pihole on it for a couple of years now. I always ssh in and use commands "pihole -v", "pihole -up" to update and it has worked up until today. Now I'm getting an error and not sure what to do.

Expected Behaviour:

Should update normally.

Actual Behaviour:

Getting error: Error: Unable to update package cache. Please try "sudo apt-get update"
Unable to complete update, please contact Pi-hole Support. Upon running "sudo apt-get update" it says:
pi@raspberrypi:~ $ sudo apt-get update
Get:1 buster InRelease [15.0 kB]
Hit:2 buster InRelease
Reading package lists... Done
E: Repository ' buster InRelease' changed its 'Suite' value from 'stable' to 'oldstable'
N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details.

Debug Token: none

Please help :confused:

That's an OS level issue, rather than Pi-hole.

Please consider searching the forums before opening a new issue - this has been asked and answered many times, e.g. see Can't update to FTL 5.9 Final: "Error: Unable to update package cache." - #2 by Bucking_Horn or Update fails on local cache update - #7 by Bucking_Horn.


My apologies, new to this forum and couldn't identify the issue correctly. Shall search more thoroughly in the future! Thanks for the help though! :slight_smile:

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