There are problems and -y was used without --force-yes

This works for 14.04

curl -L -o ./install.sh https://insights.nyc3.cdn.digitaloceanspaces.com/install.sh
sed -i '17s/https/http/' install.sh
chmod 775 install.sh 
./install.sh

S. https://github.com/digitalocean/do-agent/issues/131#issuecomment-507864145

I followed and a new error occurred.

sudo apt-get update

Finished, I use the command

curl -sSL https://repos.insights.digitalocean.com/install.sh | sudo bash

It shows

Cleaning up old sources...OK
Verifying machine compatability...OK
Verifying compatability with script...OK
Installing apt repository...
Installing gpg key...OK
W: Failed to fetch https://repos.insights.digitalocean.com/apt/do-agent/dists/main/main/binary-amd64/Packages  gnutls_handshake() failed: Decrypt error

W: Failed to fetch https://repos.insights.digitalocean.com/apt/do-agent/dists/main/main/binary-i386/Packages  gnutls_handshake() failed: Decrypt error

E: Some index files failed to download. They have been ignored, or old ones used instead.

I am having the same issue, and running apt update still gives the same error

Hello,

I’ve tested the script on a few different Ubuntu distributions and it seems to be working on all as normal.

What I would suggest is running apt update again and see if it succeeds. If so, then try to run the install script again. If you get any errors, then this would explain why the installation is not going through and it would give you a good starting point for further troubleshooting.

Regards, Bobby