What we will need to do for the recovery is to stop mysql and put it in innodb_force_recovery to attempt to backup all databases.
service mysqld stop mkdir /root/mysqlbak cp -rp /var/lib/mysql/ib* /root/mysqlbak
You can start from 1 to 4, go up if it does not start and check mysql logs if it keeps crashing.
innodb_force_recovery = 1
service mysqld start mysqldump -A > dump.sql
Drop all databases that needs recovery.
service mysqld stop rm /var/lib/mysql/ib*
Comment out innodb_force_recovery in /etc/my.cnf
service mysqld start
Then check /var/lib/mysql/server/hostname.com.err to see if it creates new ib's.
Then you can restore databases from the dump:mysql < dump.sql