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Hello
Please help me figure out why the error occurs during installation. OS Ubuntu 22.04 install on VM Hyper-V
You can try apt-key adv --keyserver keyserver.ubuntu.com --recv-keys DE8... to add the public key. (Add the full key in place of DE8…; I can’t see the whole key.)
Thanks to all who answered. The problem was not solved, however, I decided not to beat my forehead against the wall, and since this is a test bench, I re-raised it in the CentOS environment. And although I also had problems there, this post can be marked closed. Issues on CentOS