RedHat Appliance - Root Password

[ollie01]

Hi Guys,

I've got a HackStrike network appliance - with RedHat Nash Installed.

It seems that since I did not use this device ages ago, the root password is forgotten. I've booted up with a Linux Live CD and mounted the internal disk of this appliance. The passwd file shows a couple of users I've created - and when I've tried to login with them on serial rs232 - It gives me this output:

Password:
Last login: Sat Feb 12 11:11:27 on ttyS0
You ha
HackStrike Fortress 1 console

Sends me back to Login prompt, it seems that this user does not have access to console mode - however i cannot remember the root password.

when I've tried to edit the shaddow file it gives me permission denied ( with the hard disk mounted on Linux Live CD)

and tips how I can recover this root password?

Regards

ollie

[yukihisa]

I know the way that needs to be booted by a live cd which you have done already and mount the partition you have on your hard disk.

then edit the /etc/shadow, clear the password of root and save.

If you have booted from a live CD, there should not be any restriction to access the mounted hard disk because you are running on LIve CD not on the hard disk.

Am I making a sense?

[ollie01]

Thats what I'm trying to do, however when i nano the shadow file - it gives me permission denied - checked the rights , and its true i havent got read or write access.... i could chmod however i dont want to ruin this....

[ollie01]

UPDATE:

I can edit the shadow file, it was just something related with the permission.... however my concern is... if i do update a RedHat Nash 3.something shadow generated password with Ubuntu 10 generated password... will that still work?