LQ Marshall wrote:
It is probable that the otrs user is probably set to not allow logins. This is fairly easy to check for most linux flavors a "grep otrs /etc/ passwd" should give you the answer. Usually the shell will be a directory/ file that doesn't exist and often this is something like nologin or badsh (BAD SHell).
If this is the case then the problem is just that... Read the passwd file for your account and change the directory to what your account says and you should be able to log.
This assumes that you know the password for the otrs account. If not it's probably best to start from root and then su otrs.
For security, when you are done with the upgrade change the otrs shell back to the 'nologin' shell.
You can use the -s switch to su to specify a (one time) shell. No need to modify any files: # su -s /bin/bash - <user-that-normally-cannot-login> Nils Breunese.