Re: [libvirt PATCH] rpm: Drop obsolete Obsoletes

On Wed, Sep 06, 2023 at 12:29:15PM +0100, Daniel P. Berrangé wrote: > On Wed, Sep 06, 2023 at 07:26:55AM -0400, Andrea Bolognani wrote: > > I'm happy to drop this patch as the impact of the cleanup is pretty > > small anyway, but generally speaking I don't think that we should aim > > to support scenarios such as the one you describe. > > > > If someone is going from, say, Debian 10 to Debian 11, and they want > > to move to an even newer version of libvirt than the one shipped with > > the OS, this is what will happen: > > > > * they will start with the version in Debian 10 (5.0.0); > > > > * they will upgrade the system to Debian 11, which will bring the > > version of libvirt up to 7.0.0, obsoleting packages as necessary > > in the process; > > > > * they will build the latest version of libvirt from source and > > install it. > > > > Trying to jump from 5.0.0 to the latest upstream version without > > going through 7.0.0 will require additional steps and generally be > > fiddly as heck, for no obvious advantage. > > > > With that in mind, I think my patch is perfectly good and does > > nothing to harm the experience of someone upgrading from a platform > > that we no longer target to one that we still do. > > Consider earlier versions of RHEL-8 shipped libvirt 4.5.0, and if > we rebase libvirt again in RHEL-9, an upgrade from RHEL 8.3 to > RHEL-9 will need this Obsoletes condition that is being removed. > A RHEL-8 to RHEL-9 upgrade path is an expected scenario to be > supported. That's explicitly unsupported[1]: the earliest version of RHEL 8 that you can use as a starting point for an upgrade to RHEL 9 is RHEL 8.6, which has libvirt 8.0.0.