Upgrade Update command in Linux the difference between Yum upgrade and Yum update

Source: Internet
Author: User

Copy Code
The code is as follows:

Yum-y Update


Upgrade all packages and also upgrade software and system cores


Copy Code
The code is as follows:

Yum-y Upgrade


Upgrade all packages only, without upgrading software and system cores

Experiments were tested YUM-Y upgrade and yum-y update

Pre-upgrade

System version: centos5.5
Kernel version: 2.6.18-194.el5

Simple configuration file modification before upgrade

Yum-y Upgrade after upgrade

System version: centos5.7
Kernel version: 2.6.18-194.el5

YUM-Y Update after upgrade

System version: centos5.7
Kernel version: 2.6.18-238.el5


This article from "Dongdong Homeland" blog, declined reprint!

Upgrade Update command in Linux the difference between Yum upgrade and Yum update

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