re Subiquity:
> Messaging should clearly indicate that installing the oem packages will make
> the environment incompatible with fips/RT kernel/ etc.
I would like to see a more precise list of these incompatibilities, as I am not
familiar with them.
Who can provide that information?
** Changed in: subiquity (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1978890
Title:
FIPS/OEM installation compatibility is unclear to the end-user
Status in subiquity package in Ubuntu:
Incomplete
Status in ubiquity package in Ubuntu:
New
Status in ubuntu-advantage-tools package in Ubuntu:
New
Status in ubuntu-drivers-common package in Ubuntu:
New
Status in update-manager package in Ubuntu:
New
Bug description:
[Overall Summary]
Converting to cover all oem/fips compatibility issues with
ua/installers/update-manager. These projects are mostly silo'd, so
when they all converge it creates a confusing and frustrating
experience for the user.
At it's core, the problem is that both fips and oem us
GRUB_FLAVOUR_ORDER to select the preferred kernel to boot from,
disregarding versioning.
The main issues are:
1. ubuntu-drivers should not attempt to `oem-ify` a `fipsified` machine
2. ua tool should not attempt to `fipsify` an oem machine
3. subiquity should mention that drivers page is potentially making machine
realtime & fips incompatible
Below are some reproducible examples of issues:
---
(Subiquity installer case)
[Summary]
A recent change to the subiquity snap adds support for installing oem drivers
at time of instance install. If the user installs these packages, then attempts
to install the fips packages post-install, fips will install as expected, but
the system will always boot to the oem kernel.
[Expected Behavior]
Messaging should clearly indicate that installing the oem packages will make
the environment incompatible with fips/RT kernel/ etc.
[Observed Behavior]
Subiquity just offers additional drivers, without clarifying the
compatibility complications.
[Replication Steps]
(Using Dell Inc. Precision 7920 Tower/060K5C)
1. Install from current focal ISO
2. Confirm driver installation on the oem gui page
3. Install ua client/fips
4. Reboot
5. Observe kernel version (oem)
---
(update-manager case)
[Summary]
A feature was added to allow for post-install enablement for oem-enabled
devices via update manager:
https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1908050
While this works great for some situations, it can lead to users
unexpectedly installing the oem meta package + associated kernel,
overwriting an existing fips installation, as the "Improved hardware
support" bundle may not be noticed when operating update-manager
[Expected Behavior]
For non linux-generic running installs, the post-install oem enablement
functionality should not trigger, nor should it add the additional repositories
to the client's sources.list.d.
[Observed Behavior]
sources.list.d is updated and "Improved hardware support" is allowed as an
option in update-manager, which leads to clients unexpectedly losing compliance
in fips environments.
[Replication Steps]
(Using Dell Inc. Precision 7920 Tower/060K5C)
1. Install from current focal ISO
2. Attach a ua subscription
3. Enable the fips-updates service
4. Reboot the system, login the desktop and wait for a while. The
notification will pop up and it will show "Improved hardware support" on the
certified machines that has the OEM metapackage support.
5. Click through the update-manager prompt and install the oem packages
6. Reboot check fips status
oem's config in /etc/default/grub.d/* does not have a number prefix,
and thus will always override 99-ubuntu-fips.cfg when calling update-
grub.
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