update centos 5.7 to centos 5.9

Update centos 5.5, 5.6 , 5.7  or 5.8 to 5.9


STEP 1 :


BACKUP everything if something go wrong


Step 2:

Update with YUM update


first clean all, second update glibc, yum, rpm and python packages and then update other packages like following:

yum clean all
yum update glibc* yum* rpm* python*
yum update


Step 3:



Step 4:

check centos release info

cat /etc/redhat-release

## Output ##

CentOS release 5.9 (Final)


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