This bug was fixed in the package ubuntu-advantage-tools - 27.14.4
---------------
ubuntu-advantage-tools (27.14.4) lunar; urgency=medium
* timer: disable update_contract_info job (LP: #2015302)
* livepatch: prevent livepatch from auto-enabling and subsequently failing
on non-amd64 systems (LP: #2015241)
-- Renan Rodrigo <renanrodr...@canonical.com> Tue, 04 Apr 2023
17:56:07 -0300
** Changed in: ubuntu-advantage-tools (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/2015241
Title:
"pro attach" tries to enable livepatch on non-amd64 LTSs and fails
Status in ubuntu-advantage-tools package in Ubuntu:
Fix Released
Status in ubuntu-advantage-tools source package in Xenial:
New
Status in ubuntu-advantage-tools source package in Bionic:
New
Status in ubuntu-advantage-tools source package in Focal:
New
Status in ubuntu-advantage-tools source package in Jammy:
New
Bug description:
[ Impact ]
`pro attach` fails on non-amd64 systems because it attempts to enable
livepatch, which is only built for amd64, and errors.
The fix is to honor the existing "architecture" affordance which
specifies which architectures livepatch can be enabled on.
[ Test Plan ]
`pro attach` on an arm64 system.
Before the fix, it will fail while enabling Livepatch.
After the fix, it will not attempt to enable livepatch.
[ Where problems could occur ]
The affordance checking code now runs before enabling livepatch. This is
well-tested, but if there is an error, then the bug could reoccur in some
situation.
More likely, is that we forget to add a supported architecture to the list of
supported architectures in the future - which would prevent livepatch from
getting enabled on that future supported architecture.
[ Other Info ]
This bug occurred because we were relaxing our affordance checking before
enabling livepatch - in order to allow livepatch client to be the source of
truth for whether a certain kernel is supported or not. This is generally good
and works for kernel versions and flavors, but interim releases and non-amd64
architectures are not supported at all, so they need to be treated specially.
[ Original Description ]
27.14.3 on jammy arm64:
ubuntu@j-uat:~$ sudo pro attach <redacted>
Enabling default service esm-apps
Updating package lists
Ubuntu Pro: ESM Apps enabled
Enabling default service esm-infra
Updating package lists
Ubuntu Pro: ESM Infra enabled
Enabling default service livepatch
Installing canonical-livepatch snap
Stderr: error: snap "canonical-livepatch" is not available on latest/stable
but other
tracks exist.
Please be mindful that different tracks may include different features.
Get more information with 'snap info canonical-livepatch'.
Stdout:
Stderr: error: snap "canonical-livepatch" is not available on latest/stable
but other
tracks exist.
Please be mindful that different tracks may include different features.
Get more information with 'snap info canonical-livepatch'.
Stdout:
Stderr: error: snap "canonical-livepatch" is not available on latest/stable
but other
tracks exist.
Please be mindful that different tracks may include different features.
Get more information with 'snap info canonical-livepatch'.
Stdout:
Stderr: error: snap "canonical-livepatch" is not available on latest/stable
but other
tracks exist.
Please be mindful that different tracks may include different features.
Get more information with 'snap info canonical-livepatch'.
Stdout:
Failed to enable default services, check: sudo pro status
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