Trying to upgrade an old RPI 3 - currently running version 10 Buster.
sudo apt-get update producesSearched around and found this
"Find the file in /etc/apt/sources.list.d/ for buster-backports and change the URL to http://archive.debian.org/debian"
but when i nano raspi.d I can't modify it.
I'd rather not just reflash the SD card - is there a way to update it? Thanks
sudo apt-get update produces
Code:
Hit:1 http://archive.raspberrypi.org/debian buster InReleaseIgn:2 http://raspbian.raspberrypi.org/raspbian buster InReleaseErr:3 http://raspbian.raspberrypi.org/raspbian buster Release 404 Not Found [IP: 2a00:1098:0:80:1000:75:0:3 80]Reading package lists... DoneE: The repository 'http://raspbian.raspberrypi.org/raspbian buster Release' no longer has a Release file.N: Updating from such a repository can't be done securely, and is therefore disabled by default.N: See apt-secure(8) manpage for repository creation and user configuration details."Find the file in /etc/apt/sources.list.d/ for buster-backports and change the URL to http://archive.debian.org/debian"
but when i nano raspi.d I can't modify it.
I'd rather not just reflash the SD card - is there a way to update it? Thanks
Statistics: Posted by steev_jo — Fri Dec 12, 2025 3:16 pm