MYSQL does not start after upgrading version 5.5 to 5.7 on the Centos 6.9 server

I am upgrading Mysql 5.5 to MYSQL 5.7 on the Centos 6 server, but after upgrading the server does not start. I performed the MYSQL 5.5 version removal process to perform upgrade as indicated on various forums. I will deregulate the entire process with screen capture step by step, to facilitate the identification of possible errors.

1 - I downloaded the repo for E6 11.

wget https://dev.mysql.com/get/mysql57-community-release-el6-11.noarch.rpm

2-Ididthelocalinstallation

yumlocalinstallmysql57-community-release-el6-11.noarch.rpm

3-IremovedallpreviouspackagescomparedtoMySQL5.7

yumremovemysql57-community-release-el6-11.noarchyumremovecompat-mysql51-5.1.73-1.el6.remi.x86_64yumremovemysql-libs-5.5.57-1.el6.remi.x86_64

4-IinstalledMYSQL5.7

yuminstallmysql-community-server

5-RestartMYSQL5.7server

servicemysqldrestart

TotrytosolvetheproblemItriedthefollowingprocedures.

1.1-Checkingdiskspace

1.2-CheckingtheoutputofmyRPM

rpm-qa|grepMySQL