[CentOS] http error when updating 7.5 ==> 7.6

Sat Mar 23 01:52:41 UTC 2019
Fred Smith <fredex at fcshome.stoneham.ma.us>

Was just doing a (very) belated update on a 7.5 system and ran into
this set of errors:

================================================================================
 Package             Arch          Version                 Repository      Size
================================================================================
Updating:
 polkit              x86_64        0.112-18.el7_6.1        updates        168 k
 polkit-devel        x86_64        0.112-18.el7_6.1        updates         42 k
 polkit-docs         noarch        0.112-18.el7_6.1        updates        251 k

Transaction Summary
================================================================================
Upgrade  3 Packages

Total download size: 461 k
Is this ok [y/d/N]: y
Downloading packages:
Finishing delta rebuilds of 3 package(s) (461 k)
Some delta RPMs failed to download or rebuild. Retrying..
polkit-0.112-18.el7_6.1.x86_64 FAILED                                          
http://mirror.centos.org/centos/7/updates/x86_64/Packages/polkit-0.112-18.el7_6.1.x86_64.rpm: [Errno 14] HTTP Error 416 - Requested Range Not Satisfiable
Trying other mirror.
polkit-devel-0.112-18.el7_6.1. FAILED                                          
http://mirror.centos.org/centos/7/updates/x86_64/Packages/polkit-devel-0.112-18.el7_6.1.x86_64.rpm: [Errno 14] HTTP Error 416 - Requested Range Not Satisfiable
Trying other mirror.
polkit-docs-0.112-18.el7_6.1.n FAILED                                          
http://mirror.centos.org/centos/7/updates/x86_64/Packages/polkit-docs-0.112-18.el7_6.1.noarch.rpm: [Errno 14] HTTP Error 416 - Requested Range Not Satisfiable
Trying other mirror.


Error downloading packages:
  polkit-0.112-18.el7_6.1.x86_64: [Errno 256] No more mirrors to try.
  polkit-devel-0.112-18.el7_6.1.x86_64: [Errno 256] No more mirrors to try.
  polkit-docs-0.112-18.el7_6.1.noarch: [Errno 256] No more mirrors to try.



I then browsed to the mirror shown above and downloaded the files with
no trouble. I then did "yum localupdate" for the three downloaded files
and they installed just fine.

so, anybody know why we're getting the 416 error from yum but not from
firefox?

a little searching for that error indicates it is some kind of problem
on the web host, I think. but it's weird.

I don't need help, I'm good, but perhaps someone needs to look at whatever
mis-configuration on the host(s) causes that.

I originally left the repo file alone so it attempted to use the repolist
but every repo failed. I then changed it to use the baseurl but it didn't
help. So whatever the problem is, it isn't with just a single host.

Fred
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