I have slowly been upgrading all of my old RedHat boxes to Fedora Core
1.  I know that this is even old, however this is a tested
configuration for what we wanted to do on our wireless network
infrastructure, and there are some known problems with moving to the
v2.6.x Linux kernel.  I don’t want to deal with those yet.

I have now done three upgrades, using the anaconda installer that comes
with Fedora Core, and I have to say that I am impressed.  It just
works.  Except for Sendmail.  In each install that I have
done, sendmail just stops working, and begins to emit useless errors
into the log … or at least they are useless to me.  On this
latest upgrade, I have spent hours of time debugging the installation
over the last two or three weeks.

Today I was able to find a simple solution to debugging these
issues.  I’m not sure why I didn’t think of this before.  I
simply used “rpm” to erase/uninstall sendmail … and then used
“up2date”  to install it again.  Jackpot!  Sendmail is
now working on this newly upgraded server.  I’m not going to
forget this “solution.”

Wow … it’s almost like rebooting Windows!