On Wed, 2025-03-19 at 23:19 +0100, Simon de Vlieger wrote: > G'day, > > In Fedora we use the `machine-id` in a few places in `/boot`. For example it > is > part of the rescue kernel name and the BLS files. This is (from what I > understand) > because we want to let our `/boot` (XBOOTLDR) partition be used by multiple > installations if required. > > Please correct me if I misunderstand the reasoning on functionality or > purpose :) > > > Sadly having the machine-id used as the differentiator is difficult for those > of us > who like to build images of operating systems. Since machine-ids are supposed > to be > unique per machine we can't pre-fill them. We can build the system, including > running > dracut, and reset the machine-id to something useful (such as > `uninitialized`). > > However that makes us end up with (for example) a rescue kernel with the > wrong machine-id. > This leads to duplicate rescue kernels the next time dracut regenerates. > > For many of our disk images produced in `koji` we turn off rescue kernel > generation because of this as it is a noticeable effect. However BLS files > are also stored in this way. > > > With the backstory out of the way. I've been looking into using > `entry-token=os-id` instead > of `entry-token=machine-id`. In this case we would instead use `fedora` as > the differentiator > for BLS and rescue kernels. > > There's probably history on why Fedora uses `machine-id`, there's probably > things that preclude us from using `entry-token=os-id`. If you know any > history > about or you know something that would break if we were to switch to using the > `os-id` please let me know. > > I might consider turning this into a change proposal for a next version of > Fedora if there are no big downsides to changing this.
Off the top of my head, that would likely break if you have more than one Fedora install, which is definitely a thing some people do. -- Adam Williamson (he/him/his) Fedora QA Fedora Chat: @adamwill:fedora.im | Mastodon: @ad...@fosstodon.org https://www.happyassassin.net -- _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
