Centos - prevent yum update from breaking package configurations


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# 1  
Linux Centos - prevent yum update from breaking package configurations

i recently run
Quote:
yum update
on a centos server and this replaced the current
Quote:
phpmyadmin
config files with a new one.

this happened with
Quote:
phpmyadmin
but i think it can happen with other packages as well.

please advise how such issues can be prevented from happening again.
# 2  
Quote:
Originally Posted by coolatt
i recently run on a centos server and this replaced the current config files with a new one.

this happened with but i think it can happen with other packages as well.

please advise how such issues can be prevented from happening again.
The first preventive measure would be you: before updating check what does it want to update and where the update comes from (what repo is using). Do not accept updates at willy-nilly

The second preventive measure would be you: learning how to manage yum.
Keywords like: exclude, enable, disable, protect and priority might assist you in managing packages update.
# 3  
Before you run yum update, you need to protect yourself by saving a copy of your custom configuration files.
This User Gave Thanks to fpmurphy For This Post:
# 4  
I have seen rpm's that rename a conflicting config file to .rpmsave or rename the new file to .rpmnew.
But not every rpm is nice like that.
This User Gave Thanks to MadeInGermany For This Post:
# 5  
is it possible to do a dry-run to see what
Code:
yum update

will do with the config files ?
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