CentOS - May 2020 - Stuck Centos 7 to 8 upgrade

Four problems below:

# dnf -y groupupdate "Core" "Minimal Install"
bintray-tvheadend-stable 0.0? B/s |?? 0? B???? 00:00
Failed to synchronize cache for repo 'bintray-tvheadend-stable', 
ignoring this repo.
Last metadata expiration check: 0:03:11 ago on Sat 16 May 2020 12:30:47 
PM CDT.
Error:
 ?Problem 1: package python3-hawkey-0.35.1-9.el8_1.x86_64 requires 
librpm.so.8()(64bit), but none of the providers can be installed
 ? - package python3-hawkey-0.35.1-9.el8_1.x86_64 requires 
librpmio.so.8()(64bit), but none of the providers can be installed
 ? - package python3-dnf-plugins-core-4.0.8-3.el8.noarch requires 
python3-hawkey >= 0.34.0, but none of the providers can be installed
 ? - cannot install both rpm-libs-4.14.2-26.el8_1.x86_64 and 
rpm-libs-4.11.3-43.el7.x86_64
 ? - package dnf-plugins-core-4.0.8-3.el8.noarch requires 
python3-dnf-plugins-core = 4.0.8-3.el8, but none of the providers can be 
installed
 ? - package deltarpm-3.6-3.el7.x86_64 requires librpm.so.3()(64bit), 
but none of the providers can be installed
 ? - package deltarpm-3.6-3.el7.x86_64 requires librpmio.so.3()(64bit), 
but none of the providers can be installed
 ? - conflicting requests
 ? - problem with installed package deltarpm-3.6-3.el7.x86_64
 ?Problem 2: package 
python3-rhn-client-tools-2.8.16-13.module_el8.1.0+211+ad6c0bc7.x86_64 
requires libgudev, but none of the providers can be installed
 ? - package 
python3-dnf-plugin-spacewalk-2.8.5-11.module_el8.1.0+211+ad6c0bc7.noarch 
requires python3-rhn-client-tools >= 2.8.4, but none of the providers 
can be installed
 ? - package libgudev-232-4.el8.i686 obsoletes libgudev1 < 230 provided 
by libgudev1-219-73.el7_8.6.x86_64
 ? - package libgudev-232-4.el8.x86_64 obsoletes libgudev1 < 230 
provided by libgudev1-219-73.el7_8.6.x86_64
 ? - package 
dnf-plugin-spacewalk-2.8.5-11.module_el8.1.0+211+ad6c0bc7.noarch 
requires python3-dnf-plugin-spacewalk = 
2.8.5-11.module_el8.1.0+211+ad6c0bc7, but none of the providers can be 
installed
 ? - package libgudev1-devel-219-73.el7_8.6.x86_64 requires libgudev1 = 
219-73.el7_8.6, but none of the providers can be installed
 ? - conflicting requests
 ? - problem with installed package libgudev1-devel-219-73.el7_8.6.x86_64
 ?Problem 3: package python3-dnf-4.2.7-7.el8_1.noarch requires dnf-data 
= 4.2.7-7.el8_1, but none of the providers can be installed
 ? - package dnf-4.2.7-7.el8_1.noarch requires python3-dnf = 
4.2.7-7.el8_1, but none of the providers can be installed
 ? - cannot install both dnf-data-4.2.7-7.el8_1.noarch and 
dnf-data-4.0.9.2-1.el7_6.noarch
 ? - package yum-4.2.7-7.el8_1.noarch requires dnf = 4.2.7-7.el8_1, but 
none of the providers can be installed
 ? - package python2-dnf-4.0.9.2-1.el7_6.noarch requires dnf-data = 
4.0.9.2-1.el7_6, but none of the providers can be installed
 ? - conflicting requests
 ? - problem with installed package python2-dnf-4.0.9.2-1.el7_6.noarch
 ?Problem 4: problem with installed package 
ipa-client-4.6.6-11.el7.centos.x86_64
 ? - package ipa-client-4.6.6-11.el7.centos.x86_64 requires 
libcollection.so.2()(64bit), but none of the providers can be installed
 ? - package ipa-client-4.8.0-10.module_el8.1.0+255+aa2bdb39.x86_64 
requires libxmlrpc_util.so.4()(64bit), but none of the providers can be 
installed
 ? - cannot install both libcollection-0.7.0-39.el8.x86_64 and 
libcollection-0.7.0-32.el7.x86_64
 ? - cannot install both xmlrpc-c-1.51.0-5.el8.x86_64 and 
xmlrpc-c-1.32.5-1905.svn2451.el7.x86_64
 ? - package sssd-kcm-2.2.0-19.el8_1.1.x86_64 requires 
libcollection.so.4()(64bit), but none of the providers can be installed
 ? - package libreport-plugin-mantisbt-2.1.11-53.el7.centos.x86_64 
requires libxmlrpc_util.so.3()(64bit), but none of the providers can be 
installed
 ? - conflicting requests
 ? - problem with installed package 
libreport-plugin-mantisbt-2.1.11-53.el7.centos.x86_64
 ? - package ipa-client-4.8.0-11.module_el8.1.0+253+3b90c921.x86_64 is 
excluded
 ? - package ipa-client-4.8.0-13.module_el8.1.0+265+e1e65be4.x86_64 is 
excluded
(try to add '--allowerasing' to command line to replace conflicting 
packages or '--skip-broken' to skip uninstallable packages)

Ideas?
-Frank

On Sat, 16 May 2020 at 13:39, Frank M. Ramaekers Jr. <frank at
ramaekers.com>
wrote:
> Four problems below:
>
> # dnf -y groupupdate "Core" "Minimal Install"
> bintray-tvheadend-stable 0.0  B/s |   0  B     00:00
> Failed to synchronize cache for repo 'bintray-tvheadend-stable',
> ignoring this repo.
>
>
CentOS 7 can't be upgraded in place without significant work on the user to
CentOS-8. Most EL releases are meant to be fresh installs because things
like filesystem format changes and other items can only be done then (AKA
EL6 xfs or ext4 is different from EL7 xfs or ext4 which is different from
EL8 xfs or ext4 in ways). Most of the time it is a small performance issue
but it can be enough that insite upgrades need a lot of careful planning.
Normally you need to work out what packages aren't going to be upgraded by
hand and remove them from the system. Then you need to work out the
ordering of upgrades (usually rpm/dnf/python/kernel/glibc with some done
outside of the chroot and some done inside of it.) Then you can work on the
rest of the upgrades.

> Ideas?
> -Frank
>
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>

-- 
Stephen J Smoogen.