I’m testing out the Beta2 of the upcoming Ubuntu 16.04 release and I’m getting a warning from apt-get.
I added the Sonarr repo using the commands here https://github.com/Sonarr/Sonarr/wiki/Installation#debianubuntu and when I run apt-get update I am seeing this warning:
W: http://apt.sonarr.tv/dists/develop/InRelease: Signature by key A236C58F409091A18ACA53CBEBFF6B99D9B78493 uses weak digest algorithm (SHA1)
This is just a warning and the install works fine when I proceed to apt-get install nzbdrone, but I just wanted to make you aware of the warning. It looks like this might be helpful in resolving the issue: https://wiki.debian.org/Teams/Apt/Sha1Removal