I’m using ubuntu and have Lulzbot edition of Cura installed on my computer using aleph objects repository. Every time I do an apt-get update I keep getting these messages.
W: The repository ‘http://download.alephobjects.com/ao/aodeb stretch Release’ is not signed.
N: Data from such a repository can’t be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
Cura is working fine, but should I be concerned about these messages?