[Yum] yum --allow-downgrade syntax

seth vidal skvidal at fedoraproject.org
Wed Apr 2 17:50:44 UTC 2008


On Wed, 2008-04-02 at 11:15 -0500, Troy Dawson wrote:
> Hi,
> I've googled, I've read the help, I've read the wiki, I've even read the source 
> code, and I just cannot figure out the syntax to the allow-downgrade plugin.
> Actually, through all my googling, I haven't actually read of anyone actually 
> using it successfully.  Which rather blows my mind.
> 
> Anyway, what is the correct syntax?
> 
> For those that are curious ... the main code is shorter than this e-mail 
> message, in case it helps.
> 
> def postresolve_hook(conduit):
>      opts, args = conduit.getCmdLine()
>      if opts.allow_downgrade:
>          tsInfo = conduit.getTsInfo()
>          tsInfo.probFilterFlags.append(RPMPROB_FILTER_OLDPACKAGE)
> 
> I would file a bugzilla ... but for all I know, it's working correctly.

yum --allow-downgrade install somepkg-somever

that's the only odd part: you're INSTALLING a downgrade.

-sv





More information about the Yum mailing list