Upgrade CentOS 6.3 to CentOS 6.4
Check the packages that will be updated:
yum list update
Pull the trigger:
yum update
or
yum clean all yum update glibc* yum* rpm* python* yum update
Restart the system after update get completed
restart
Check the version:
cat /etc/redhat-release CentOS release 6.4 (Final)
Backup all important data before upgrading:
- Backup /etc diretory
- Backup important logs /var/log
- Backup web server configs and sites
- Dump MySQL databases
- Dump PostgreSQL databases
- Backup all what you need if something goes wrong
