Description of problem:
yum does not work after upgrade from fc2 to fc3. first it was a problem that it
is using old conf. I tried to replaced with yum.conf.rpmnew and it still does
not work. I have also tried to remove all the /var/cache/yum/* and it is still
the same. Error message is:
[root@windcloud ~]# yum update
Setting up Update Process
Setting up Repo:  base
Cannot find a valid baseurl for repo: base


Version-Release number of selected component (if applicable):
2.1.11-3

Steps to Reproduce:
1. upgrade from fc2 -> fc3
2. yum update
  
Actual results:
[root@windcloud ~]# yum update
Setting up Update Process
Setting up Repo:  base
Cannot find a valid baseurl for repo: base


Expected results:
should at least pass this.

Additional info:
Not sure if it is related to old config or not? but i have tried to see from
strace and see what file (conf etc) it trying to open but nothing obvious. or is
it because there aren't any repo yet?

if you look in /etc/yum.repos.d
and you look for a repository in one of the .repo files in there named
[base] you should see that there is either a mirrorlist or a baseurl
in there.

See if either of the urls mentioned exist.

Okay it is as I guess, it does not have fedora-core-3 mirror list yet.

But doesn't it should continue to other repos other than just quit?

No, The condition where a repository configuration is damaged and not
functional is an error condition. It exits.

You should be able to run:
yum --disablerepo=base [normal command]

to get around it.