error: Updating from such a repository can't be done securely, and is therefore disabled by default
I've been trying to set up an intel realsense D415 on an Odroid XU4 and keep on running into the same error. As I am going through the commands at https://github.com/IntelRealSense/librealsense/blob/development/doc/distribution_linux.md, the below error pops up when I try to sudo apt-get update
odroid@odroid:~$ sudo apt-get update
Get:1 http://deb.odroid.in/5422-s bionic InRelease [1701 B]
Hit:2 http://ports.ubuntu.com/ubuntu-ports bionic InRelease
Hit:3 http://ports.ubuntu.com/ubuntu-ports bionic-updates InRelease
Hit:4 http://archive.canonical.com/ubuntu bionic InRelease
Hit:5 http://ppa.launchpad.net/apt-fast/stable/ubuntu bionic InRelease
Hit:6 http://ports.ubuntu.com/ubuntu-ports bionic-backports InRelease
Err:7 http://realsense-hw-public.s3.amazonaws.com/Debian/apt-repo xenial InRelease
403 Forbidden [IP: 52.218.80.49 80]
Hit:8 http://ports.ubuntu.com/ubuntu-ports bionic-security InRelease
Err:9 http://realsense-alm-public.s3.amazonaws.com/apt-repo xenial InRelease
403 Forbidden [IP: 52.218.80.49 80]
Reading package lists... Done
E: Failed to fetch http://realsense-hw-public.s3.amazonaws.com/Debian/apt-repo/dists/xenial/InRelease 403 Forbidden [IP: 52.218.80.49 80]
E: The repository 'http://realsense-hw-public.s3.amazonaws.com/Debian/apt-repo xenial InRelease' is not signed.
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.
E: Failed to fetch http://realsense-alm-public.s3.amazonaws.com/apt-repo/dists/xenial/InRelease 403 Forbidden [IP: 52.218.80.49 80]
E: The repository 'http://realsense-alm-public.s3.amazonaws.com/apt-repo xenial InRelease' is not signed.
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.
I've tried the --allow--unauthorized (don't remember exact syntax atm) even though I also read it only works with apt-get upgrade (not update). It did not work. Also tried with a brand new image. I've been able to run install on my ubuntu laptop with no problem. I've also been trying to add the repo manually but haven't been able to figure out how to.
Answer
403 - Forbidden is a server side error. You are not allowed to access the data on the server.
Please, update /etc/apt/sources.list.