CentOS yum

Някакъв наличен сървър с MySQL който трябва да се мигрира към PostgreSQL

cat /etc/issue.net
CentOS release 5.5 (Final)
Kernel \r on an \m

Драмата:
[root@db ~]# yum list postgres
Traceback (most recent call last):
File "/usr/bin/yum", line 28, in ?
import yummain
ImportError: No module named yummain
[root@db ~]# yum search postgresql
Traceback (most recent call last):
File "/usr/bin/yum", line 28, in ?
import yummain
ImportError: No module named yummain

Проверката:
ls -lh /usr/share/yum-cli/
total 552K
-rw-r--r-- 1 root root 8.4K Feb 1 2011 callback.py
-rw-r--r-- 1 root root 6.1K Feb 1 2011 callback.pyc
-rw-r--r-- 1 root root 6.1K Feb 1 2011 callback.pyo
-rw-r--r-- 1 root root 58K Feb 1 2011 cli.py
-rw-r--r-- 1 root root 43K Feb 1 2011 cli.pyc
-rw-r--r-- 1 root root 43K Feb 1 2011 cli.pyo
-rw-r--r-- 1 root root 53K Feb 1 2011 output.py
-rw-r--r-- 1 root root 45K Feb 1 2011 output.pyc
-rw-r--r-- 1 root root 45K Feb 1 2011 output.pyo
-rw-r--r-- 1 root root 13K Feb 1 2011 shell.py
-rw-r--r-- 1 root root 9.9K Feb 1 2011 shell.pyc
-rw-r--r-- 1 root root 9.9K Feb 1 2011 shell.pyo
-rw-r--r-- 1 root root 4.8K Feb 1 2011 utils.py
-rw-r--r-- 1 root root 4.4K Feb 1 2011 utils.pyc
-rw-r--r-- 1 root root 4.4K Feb 1 2011 utils.pyo
======> липсват
yummain.* & yumcommands.*

Dirty fix:
RPM Advanced Search
wget ftp://ftp.muug.mb.ca/mirror/centos/5.6/os/i386/CentOS/yum-3.2.22-33.el5.centos.noarch.rpm
rpm -Uv yum-3.2.22-33.el5.centos.noarch.rpm
yum update
--------------
Transaction Summary
================================================================================
Install 4 Package(s)
Upgrade 158 Package(s)

Total download size: 211 M
Is this ok [y/N]: y