When ESM is installed, it updates the source list for apt, such as:
$ cat /etc/apt/sources.list.d/ubuntu-esm-apps.list
deb https://esm.ubuntu.com/apps/ubuntu bionic-apps-security main
# deb-src https://esm.ubuntu.com/apps/ubuntu bionic-apps-security main
deb https://esm.ubuntu.com/apps/ubuntu bionic-apps-updates main
# deb-src https://esm.ubuntu.com/apps/ubuntu bionic-apps-updates main
And I would like to use a JFrog-based proxy server instead of going directly to esm.ubuntu.com. This works fine for me for normal packages, but once I modify this file, the pro status switches to "disabled".
pro status
SERVICE ENTITLED STATUS DESCRIPTION
cc-eal yes disabled Common Criteria EAL2 Provisioning Packages
cis yes disabled Security compliance and audit tools
esm-apps yes disabled Expanded Security Maintenance for Applications
esm-infra yes disabled Expanded Security Maintenance for Infrastructure
fips yes disabled NIST-certified core packages
fips-updates yes disabled NIST-certified core packages with priority security updates
livepatch yes enabled Canonical Livepatch service
ros yes disabled Security Updates for the Robot Operating System
ros-updates yes disabled All Updates for the Robot Operating System
So - how can I modify the sources.list without triggering an error within pro?