for system-upgrade to branched f30, do i need yum/yum-utils?

[Robert P. J. Day]

following along here:

https://fedoraproject.org/wiki/DNF_system_upgrade

already ran:

$ sudo dnf upgrade --refresh

and when running:

$ sudo dnf system-upgrade download --refresh --releasever=30

i get a pile of diagnostics, including (at the very bottom):

Error:
 Problem: problem with installed package yum-3.4.3-518.fc29.noarch
  - package dnf-yum-4.1.0-1.fc30.noarch conflicts with yum provided by
yum-3.4.3-521.fc30.noarch
  - problem with installed package dnf-yum-4.0.9-2.fc29.noarch
  - yum-3.4.3-518.fc29.noarch does not belong to a distupgrade
repository
  - dnf-yum-4.0.9-2.fc29.noarch does not belong to a distupgrade
repository
(try to add '--allowerasing' to command line to replace conflicting
packages or '--skip-broken' to skip uninstallable packages)

now, i haven't used yum for quite some time, i stick with dnf, and
it seems that:

1) yum is required only by yum-utils
  2) yum-utils is required by nothing on my current system

so it *seems* that i have no apparent for either yum or yum-utils. is
this a safe assumption?

rday

[Samuel Sieb]

On 2/20/19 3:47 AM, Robert P. J. Day wrote:
> now, i haven't used yum for quite some time, i stick with dnf, and
> it seems that:
> yum is required only by yum-utils
> yum-utils is required by nothing on my current system
>
> so it *seems* that i have no apparent for either yum or yum-utils. is
> this a safe assumption?

Yes.  Did you try adding the --allowerasing?