2 problem rpm + yum no work

[YairNet]

yum the problem started I upgraded to python

[root server ~]# yum
There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:

   No module named yum

Please install a package which provides this module, or
verify that the module is installed correctly.

It's possible that the above module doesn't match the
current version of Python, which is:
2.7.3 (default, Jan 26 2013, 19:47:35)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-54)]

If you cannot solve this problem yourself, please go to
the yum faq at:
 


[root server ~]#

rpm problem - Every command I do is think many time apart from -help

[root server ~]#  rpm -qa

Does not respond?

[Rexilion]

It seems your yum infra is corrupted. You need to manually reinstall yum. However I was not able to find the RPM's. They don't seem to be updated between 4.0 and 4.2 so you have to use the ISO I guess.

Exactly what packages did you upgrade?

[Rubberman]

Yum relies extensively upon Python, so if the upgrade is not perfectly successful (such as may happen if you upgrade from RPM), they you are toast! FWIW, DO NOT upgrade python in a RH system from RPMs - ONLY upgrade via yum directly. If you need a newer version, install into /usr/local by building from sources, and NOT by installing the RPM binaries with YUM, otherwise this is what you might expect...

[Rexilion]

Yum relies extensively upon Python, so if the upgrade is not perfectly successful (such as may happen if you upgrade from RPM), they you are toast! FWIW, DO NOT upgrade python in a RH system from RPMs - ONLY upgrade via yum directly. If you need a newer version, install into /usr/local by building from sources, and NOT by installing the RPM binaries with YUM, otherwise this is what you might expect...

So I take it you also happen to know the solution?

[Rubberman]

Reinstall from the proper rpm files using the rpm command instead of yum would be the first thing I would try.

[Rexilion]

Reinstall from the proper rpm files using the rpm command instead of yum would be the first thing I would try.

Yes, that is what I suggested as well. So I guess we are in the correct direction, thanks.

But where do you get these rpms?

I think (I hope) that you can use yumdownloader for this. In /var/log there should be a logfile displaying what you last did during install/upgrade. /var/log/rpm.log maybe? Check it's contents for the last batch of installed packages.

Download these with yumdownloader and then install them with rpm.

[Rubberman]

The rpm command will download and install them as necessary. There are a tonne of python rpms, and a number for yum. I'm not sure which python rpms you need since you never posted the actual error output from yum here...

Here is a list of the packages for yum that I have installed in my system:

PackageKit-yum.x86_64                   0.5.8-13.el6                @anaconda-SL-201101262058.x86_64/6
PackageKit-yum-plugin.x86_64            0.5.8-13.el6                @anaconda-SL-201101262058.x86_64/6
anaconda-yum-plugins.noarch             1:1.0-5.1.el6               @sl/6       
yum.noarch                              3.2.27-14.el6               @anaconda-SL-201101262058.x86_64/6
yum-autoupdate.noarch                   5:2-5.0                     @sl-security
yum-conf-adobe.x86_64                   6-1                         @sl/6       
yum-conf-atrpms.x86_64                  6-1                         @sl/6       
yum-conf-elrepo.noarch                  6-1                         @sl/6       
yum-conf-epel.noarch                    6-1                         @sl/6       
yum-conf-rpmforge.x86_64                6-1                         @sl/6       
yum-metadata-parser.x86_64              1.1.2-14.1.el6              @anaconda-SL-201101262058.x86_64/6
yum-plugin-security.noarch              1.1.26-11.el6               @sl         
yum-utils.noarch                        1.1.26-11.el6               @anaconda-SL-201101262058.x86_64/6

FWIW, I am running Scientific Linux, a Red Hat Enterprise Linux (RHEL) clone much like CentOS, hence the sl/6 repositories. The anaconda ones are from the original installation disc. The yum-conf-* packages are extra repositories such as epel, rpmforge, etc. Not needed for yum to work.