I want to mount my disk forever

Hi guys! I've just mounted my drive in fstab:

/dev/sdb /myfolder ext3 defaults 0 0

and rebooted linux.

I've got severel failers during booting process and also I can't login as root first time:

login: root
password:root

incorrect login

login:user
password: user

logon..

>su
password: root

logon...

Sorry, problem with failed processors are not with fstab and drive. I don't know why they failed. But I can't connect to my machine using another one:(

ping myip
connect:network is unreachable:(