How to find out which update packages will be downloaded in Centos?

Question

linux

Hello. I need to upgrade my old machine to Centos 6.8. How to check what will be downloaded and, in which case, how to disable what should not be downloaded (for example, a new version of the database or java)

Thanks in advance

Answer 1

man yum

Answer 2

yum update
and don't be in a hurry to press y when asked. Read carefully what they wrote to you
Well, yes, man yum, everything is described there .....

Answer 3

"update 6.8"
I think that you will still look for where you can get packages for updating the 6th generation of centos in general ... there are almost none left on the mirrors ..