I have a CentOS 5.5 installation with ruby, dovecot (and some other soft) installed from source, and soft like postfix, samba, bind etc. installed from yum repositories.
This box is online for more than six months.
Now, if I do a
yum update I see that there will be updated the kernel, bind, postfix and a bunch of other packages.
If I run the update:
Will I have to install again the software previously installed from source because of the kernel update?
Will I have to configure again the software installed from repositories (like postfix, samba etc.) beause of the updates, or the configuration is kept during the update process?