The ubuntu-support-status command is no longer provided by the update-manager-core package. The closest I found is ubuntu-security-status:
# dpkg --search "ubuntu-*-status*"
update-manager-core: /usr/bin/ubuntu-security-status
There are no man pages for these commands. So, I cannot compare their usage.
Any ideas?
Correct, it is not provided - see search results on packages.ubuntu.com.
Why it was removed?
The changelog contains the answer:
update-manager (1:20.04.9) focal; urgency=medium
- Remove ubuntu-support-status as the term support can be confusing and the Supported field has been removed from Launchpad packages. (LP: #1873362)
- Add ubuntu-security-status - a tool for displaying information about packages installed and the kind of updates which they may or may not receive. (LP: #1873362)
-- Brian Murray Fri, 17 Apr 2020 15:06:52 -0700
So this command was replaced by ubuntu-security-status.
On my 20.04 LTS system its output is as follows:
$ ubuntu-security-status 2134 packages installed, of which: 1685 receive package updates with LTS until 4/2025 449 could receive security updates with ESM Apps until 4/2030 Enable Extended Security Maintenance (ESM Apps) to get 0 security updates (so far) and enable coverage of 449 packages. This machine is not attached to an Ubuntu Advantage subscription. See https://ubuntu.com/advantage
The manual page for the command states
status Provided by: debian-security-support_2020.02.25_all
And the package is available:
Debian security support coverage checker
For some Debian packages, it is not feasible to maintain full security support for all use cases through the full distribution release cycle.
This package provides a program to identify installed packages for which support has had to be limited or prematurely ended, and to alert the administrator.
New versions of this package with updated checklists will be provided via standard and/or extended security support.
Installing that will install the command.
ubuntu-support-status.
ubuntu-security-status --helpfor short usage.