Description of problem:
I ran into this yesterday, while getting the 300+ updates after a new Mageia 6 x86_64 install.

This particular hardware has a wifi-only Internet connection, an would not connect to the Internet until after the first boot, so could not get updates through the Classical installer. After establishing the connection, and setting up a specific mirror (US-based kernel.org), The first thing I did was go after updates. About halfway through, it failed with a message similar to this:

2 installation transactions failed

There was a problem during the installation:

file /lib/firmware/intel/dsp_fw_glk.bin from install of kernel-firmware-nonfree-20171220-1.mga6.nonfree.noarch conflicts with file from package iwlwifi-agn-ucode-20170531-1.mga6.nonfree.noarch

kernel-desktop-4.14.20-1.mga6 is needed by kernel-desktop-latest-4.14.20-1.mga6.x86_64

kernel-firmware-nonfree < 20171206-1 conflicts with iwlwifi-firmware-20171220-1.mga6.nonfree.noarch 

I have run into this before when package downloading fails for one reason or another, and it's usually fixed if I attempt to do the remaining updates again. This time, however, it failed again, for the same reason, without even attempting to download the missing packages.

Knowing that the mirror had the missing packages in place days before, I worked around the problem by selecting just the problem packages and their dependencies for updating. The needed packages were downloaded and successfully installed, and I continued on to install the rest of the updates with no further problems.

I was going to ignore it as something unique to my situation, but this morning I saw a post on the alt.os.linux.mageia newsgroup detailing the same situation, except that poster did not know how to work around it. That made it worthy of a bug report. This should not be happening.


How reproducible:
 Unknown. I only know of the two incidents, each of which happened only when a large number of updates were pending.

Steps to Reproduce:
1. Install Mageia 6 from the 64-bit Classical installer, without getting updates
2. After the first boot, set up kernel.org as a specific mirror
3. Attempt to get updates.