Re: Bug#1040901: Upcoming changes to Debian Linux kernel packages

[Bastian Blank <waldi@debian.org>]

On Fri, Oct 27, 2023 at 08:43:46AM +0200, Julian Andres Klode wrote:
> > > ## Image packages contains more version info
> > > 
> > > Example: linux-image-6.5.3-cloud-arm64
> > 
> > > It will not longer be possible to reliably derive the package name from
> > > kernel release (see above), as both values are not really related
> > > anymore.
> 
> This package name seems to be missing the Debian release, which is
> mandatory to ensure that you can install 6.5.3-2 and 6.5.3-1 in
> parallel, which again is mandatory. That's not something we can
> compromise on; it's absolutely vital that

Sadly in Debian there is no way to make that happen.  Think for example
about bin-nmu.

In the end we can approximate it in testing (usually not multiple
releases are migrated, but bin-nmu might show up), stable (where usualy
new upstream releases go in) and security (by uploading as 6.6.1,
6.6.1+1, 6.6.1+2, yes this is a hack, but it reduces the complexity of
the whole system).

Right now I simply don't see a way to not have multiple releases within
the same package, which override each other.

> - you can revert to the kernel you last booted succesfully, i.e. 6.5.3-1
>   if 6.5.3-2 is broken (think toolchain broke or something on buildds)

You can revert to 6.5.2, which is a separate package.  Or 6.4.

> - the currently booted kernel is not impacted. This means it must be
>   able to load additional modules. Some platforms even require
>   additional modules to be loaded to reboot, I've seen this on
>   laptops.

Could you provide an example?

Then we have to find another way to make sure modules survive unrelated
to what dpkg does.  Even right now there is no guarante you can load
modules from a different version at all.

> Needless to say I do not believe that uname -s is necessarily a
> single word.

Please provide an example.

[ Snipped the rest for now, will come back later ]

Bastian

-- 
Where there's no emotion, there's no motive for violence.
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