Migrated from Mandriva with bizarre result

I provide technical support for an academic department at a large university. We have four high-end workstations that our faculty and graduate students use to crunch large data sets. These machines are heavily used, so I typically wait until an OS is no longer receiving updates to upgrade it.
This morning I upgraded the machines from Mandriva Linux 2010 to Mageia 1 using the following commands from this document. I have done this numerous times, and it has always gone smoothly.
Migrate from Mandriva Linux to Mageia
http://www.mageia.org/en/1/migrate/
The results were as expected on three of the machines. However, the other machine still has the kernel that Mandriva was using. Other than that, it seems to be working perfectly. I would appreciate any ideas on how this might have happened and how I might correct it. I am using the same repositories on this machine as the other three. I've tried both urpmi and the MCC GUI. Both tell me that I am up to date.
Thank you,
Will N.
Bryan, TX USA

This morning I upgraded the machines from Mandriva Linux 2010 to Mageia 1 using the following commands from this document. I have done this numerous times, and it has always gone smoothly.
Migrate from Mandriva Linux to Mageia
http://www.mageia.org/en/1/migrate/
$ su
# urpmi.removemedia -a
# urpmi.addmedia --distrib --mirrorlist 'http://mirrors.mageia.org/api/mageia.1.x86_64.list'
# urpmi --replacefiles --auto-update --auto
The results were as expected on three of the machines. However, the other machine still has the kernel that Mandriva was using. Other than that, it seems to be working perfectly. I would appreciate any ideas on how this might have happened and how I might correct it. I am using the same repositories on this machine as the other three. I've tried both urpmi and the MCC GUI. Both tell me that I am up to date.
Thank you,
Will N.
Bryan, TX USA
