How to restore database backup in case mysql server break

I did Mysql update procedure for the 5.5, but everything went wrong. But already I created a topic about it.

Before that, I made a backup as these steps:

1) Create full database backup (In case mysql server break we have backup to restore).

mysqldump --events --all-databases | gzip > /home/alldatabases.sql.gz

Finally removed the Mysql and I'm trying to do the reinstallation.

How could I once installed, do the restore from this backup?

Code: [Select]

mysql -u [username] -p [password] < alldatabases.sql.gz