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 step-by-step of the entire process with screen capture, to facilitate the identification of possible errors.
1 - I downloaded the repo for E6 11.
2 - I did the local installation
yum localinstall mysql57-community-release-el6-11.noarch.rpm
3 - I removed all previous packages, compared to MySQL 5.7
yum remove mysql57-community-release-el6-11.noarch yum remove compat-mysql51-5.1.73-1.el6.remi.x86_64 yum remove mysql-libs-5.5.57-1.el6.remi.x86_64
I do not know if I made a mistake here when removing MYSQL. This may be preventing MYSQL from starting now.
4 - I installed MYSQL 5.7
yum install mysql-community-server
Restart MYSQL server 5.7
service mysqld restart
service mysqld restart Stopping mysqld: [OK] MySQL Daemon failed to start. Starting mysqld: [FAILED]
To try to solve the problem I tried the following procedures
df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_srvti02-lv_root 31G 18G 12G 60% / tmpfs 939M 0 939M 0% /dev/shm /dev/sda1 477M 162M 290M 36% /boot
Check the output of my RPM
rpm -qa | grep mysql mysql57-community-release-el6-11.noarch mysql-community-client-5.7.19-1.el6.x86_64 mysql-community-libs-5.7.19-1.el6.x86_64 mysql-community-common-5.7.19-1.el6.x86_64 mysql-community-server-5.7.19-1.el6.x86_64
Now I don't know what to try to fix this error.