Fala pessoal, blz? Estou precisando de uma ajuda. Não to conseguindo instalar o jenkins na minha maquina.
Tentei alterando o arquivo jenkins.sh como foi mencionado em um topico anterior, mas tbm não rolou.
Ja instalei o Java 11 tbm
vagrant@ubuntu-bionic:/vagrant/scripts$ sudo ./jenkins.sh
OK
Hit:1 https://download.docker.com/linux/ubuntu bionic InRelease
Ign:2 https://pkg.jenkins.io/debian-stable binary/ InRelease
Get:3 https://pkg.jenkins.io/debian-stable binary/ Release [2044 B]
Get:4 https://pkg.jenkins.io/debian-stable binary/ Release.gpg [833 B]
Get:5 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
Hit:6 http://archive.ubuntu.com/ubuntu bionic InRelease
Ign:4 https://pkg.jenkins.io/debian-stable binary/ Release.gpg
Get:7 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Get:8 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [83.3 kB]
Reading package lists... Done
W: GPG error: https://pkg.jenkins.io/debian-stable binary/ Release: The following signatures couldn't be verified beca
use the public key is not available: NO_PUBKEY 5BA31D57EF5975CA
E: The repository 'https://pkg.jenkins.io/debian-stable binary/ Release' 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.
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package jenkins is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source 
