What is the difference between yum update and yum upgrade?

Life Sayings · Jun 1, 2017

What is the difference between yum update and yum upgrade in CentOS, and when should I use one over the other? Does any one explain me?

RDO Servers · Jun 1, 2017

They are very similar.

yum update and yum upgrade will update all packages on the server.

The difference is, yum upgrade will also remove any packages that are flagged a obsolete.

robert4u · Jun 1, 2017

yum update is better option because yum upgrade removes obsolete packages which can cause problem if you are using any of such package.

racksandcloud · Jun 4, 2017

yum upgrade forces the removal of obsolete packages, while yum update may or may not also do this. The removal of obsolete packages can be risky because it may remove packages that you use.

we recommend yum update because it is safer option.

dnsme · Jun 5, 2017

yum upgrade forces the removal of obsolete packages (install new version)
yum update UPDATE packages

In many cases, an upgrade is not recommended.

vicsylicious · Sep 2, 2017

They actually do exactly the same thing, unless you modify the obsoletes setting in yum.conf.
1 is the default and they are the same and both do obsoletes.
0 means that upgrade does handle obsoletes and update doesn't.

What is the difference between yum update and yum upgrade?

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