Linux won't Boot. Error occured during the file system check. Dropping you to a shell.

Running Linux RedHat 9.0.  When booting it gives the error "Unable to resolve 'LABEL=asm_temp' then it says an Error occured during the file system check dropping you to a command line.  I am not a Linux Guru and do not know where to go from here.  I can view the /etc/fstab by typing cat /etc/fstab, but I can't seem to figure out how to edit it.  vi /etc/fstab did not work and niether did nano /etc/fstab they both say command not found.  Wouldn't know what to change anyways.

When booting it says booting RedHat 2.6.9-34.ELsmp

File System type is ext2fs

Red Hat nash version

Any help?  This is a critical system.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

jc4boneAuthor Commented:
Detailed descriptions of how to do your solutions would be appreciated by the way, I'm new to Linux.  Thanks in advance
jc4boneAuthor Commented:
in the command shell, if i type ls there is a file called fstab.bak.  If i try to do a cp fstab.bak /etc/fstab it says unable to create file because of read only file system.  What must I do to copy this file and overwrite the old fstab?
jc4boneAuthor Commented:
OK, I did a mount -a  

Then I ran cp fstab.bak /etc/fstab
then it worked!

Fixed it myself, thanks to anyone who may have been thinking hard and not responded yet.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.