question about ttys

[Mihai Velicu]

Hi !

 

I'm new in FreeBSD and I made a mistake.

In the file ttys I changed to insecure all the lines and now I cannot log on
even as root.

Only in single user I can log on but I cannot modify the file ttys is said
something this is a read only file system.

Please tell me how I can remediate my error, how I can modify back the file
ttys ?

If is possible of course.

 

Best regards,

Mihai