another dnf problem

[Radek Holy]

----- Original Message -----
> From: "Neal Becker" <ndbecker2 at gmail.com>
> To: devel at lists.fedoraproject.org
> Sent: Thursday, January 22, 2015 1:25:40 AM
> Subject: another dnf problem
> 
> I installed kernel* from updates-testing.  Now I want to go back to
> distro-sync.
> Let's try it:
> sudo dnf distro-sync kernel*
> Error: problem with installed package kernel-3.17.7-300.local.fc21.x86_64.
> problem with installed package kernel-core-3.17.7-300.local.fc21.x86_64.
> problem with installed package kernel-doc-3.17.4-200.fc20.noarch.
> problem with installed package kernel-modules-3.17.7-300.local.fc21.x86_64.
> problem with installed package
> kernel-modules-extra-3.17.7-300.local.fc21.x86_64
> 
> that didn't work, and not very informative.  How about?
> 
> [nbecker at nbecker1 ~]$ sudo dnf downgrade kernel*
> Error: conflicting requests
> 
> Another loser.
> 
> OK, yum?
> sudo yum distro-sync kernel*
> Dependencies Resolved
> 
> ================================================================================
>  Package                                Arch   Version          Repository
>                                                                            Size
> ================================================================================
> Installing:
>  kernel-devel                           x86_64 3.17.8-300.fc21  updates   9.1
>  M
> Removing:
>  kernel                                 x86_64 3.18.3-201.fc21  installed 0.0
>  kernel-core                            x86_64 3.18.3-201.fc21  installed  41
>  M
>  kernel-devel                           x86_64 3.18.3-201.fc21  installed  34
>  M
>  kernel-modules                         x86_64 3.18.3-201.fc21  installed  17
>  M
>  kernel-modules-extra                   x86_64 3.18.3-201.fc21  installed 2.1
>  M
> Downgrading:
>  kernel-headers                         x86_64 3.17.8-300.fc21  updates   947
>  k
>  kernel-tools                           x86_64 3.17.8-300.fc21  updates   126
>  k
>  kernel-tools-libs                      x86_64 3.17.8-300.fc21  updates    50
>  k
>  kernel-tools-libs-devel                x86_64 3.17.8-300.fc21  updates    47
>  k
> Removing for dependencies:
>  kmod-VirtualBox-3.18.3-201.fc21.x86_64 x86_64 4.3.20-2.fc21    @/kmod-
> VirtualBox-3.18.3-201.fc21.x86_64-4.3.20-2.fc21.x86_64
>                                                                           1.0
>                                                                           M
>  kmod-nvidia-304xx-3.18.3-201.fc21.x86_64
>                                         x86_64 304.125-1.fc21.1 @/kmod-
> nvidia-304xx-3.18.3-201.fc21.x86_64-304.125-1.fc21.1.x86_64
>                                                                            15
>                                                                            M
> Total                                              1.7 MB/s |  10 MB  00:06
> 
> OK, that sounds about right.  Let's try it:
> 
> Running transaction check
> Running transaction test
> 
> 
> Transaction check error:
>   package kernel-tools-libs-3.18.3-201.fc21.x86_64 (which is newer than
>   kernel-
> tools-libs-3.17.8-300.fc21.x86_64) is already installed
>   package kernel-tools-3.18.3-201.fc21.x86_64 (which is newer than kernel-
> tools-3.17.8-300.fc21.x86_64) is already installed
>   package kernel-tools-libs-devel-3.18.3-201.fc21.x86_64 (which is newer than
> kernel-tools-libs-devel-3.17.8-300.fc21.x86_64) is already installed
>   package kernel-headers-3.18.3-201.fc21.x86_64 (which is newer than kernel-
> headers-3.17.8-300.fc21.x86_64) is already installed
>   package kernel-devel-3.18.3-201.fc21.x86_64 (which is newer than kernel-
> devel-3.17.8-300.fc21.x86_64) is already installed
> 
> Error Summary
> -------------
> 
> OK, so maybe yum doesn't work either.

What actually do you want?

I'm really interested in what users expect when they use "installonly" packages in any command except "install" and "remove". I strongly believe that there is a group of users that expect that "downgrade kernel" simply installs an older version of kernel while at the same time there is a group of users that expect also the removal of the current or the latest kernel.

BTW, if you want just to revert the last operation, I'd suggest "history undo last".
-- 
Radek Holý
Associate Software Engineer
Software Management Team
Red Hat Czech