I have a CentOS 6.3 machine. I'm running yum update but it doesn't show any updated package. I have already tried yum clean all and yum clean expire-cache. Any help will be really appreciated.

[root@www1 yum.repos.d]# yum list update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.xmission.com
 * epel: fedora-epel.mirror.lstn.net
 * extras: mirrors.xmission.com
 * updates: mirrors.xmission.com
Error: No matching Packages to list

P.S. I have epel installed as well, and I was playing with that while ago. I'm thinking that I might screw up something that day, probably ...

P.P.S. I've also tried to use baseurl instead of mirrorlist, again no success at all ...


I had this line in my yum.conf which was supposed to keep the postfix package for manual updates. I just comment that out and everything seems fine now. Could anybody explain why?



I was trying to do yum list update which was wrong! I should write updates not update. Actually the yum update works well, however I thought if yum list update is not working, then yum update will not work as well.


Error: No matching Packages to list

It means that there is no package named... "update". The right command is:

yum list updates

man yum:

       The  following are the ways which you can invoke yum in list mode.  
    Note that all list commands include information on the version of the package.    

       yum list updates [glob_exp1] [...]
              List all packages with updates available in the yum repositories.

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