FSUM2129I
No session was started. The program to start the shell could not be invoked.Function = attach_exec,
program name = 'program-name',
return value = return-value,
errno = errno-decimal (X'errno-hex'),
reason code = reason-code,
description = 'system-message'

Explanation

The OMVS command could not invoke the login program that starts the z/OS UNIX shell. The attach_exec function failed with the errno and reason code displayed in the second-level TSO/E message.

In the message text:
program-name
The name of the login program passed to attach_exec.
return-value
The return value from attach_exec.
errno-decimal
The errno value, in decimal, returned from attach_exec.
errno-hex
The errno value, in hexadecimal, returned from attach_exec.
reason-code
The reason code returned from attach_exec.
system-message
The system message corresponding to the returned errno value.

System action

The shell session is not started. If there are no other active sessions, the OMVS command ends and returns to TSO/E.

System programmer response

For an explanation of the errno and reason code from attach_exec, see z/OS UNIX System Services Programming: Assembler Callable Services Reference. Follow any suggested actions for this errno value and reason code.

Check that the program named in the message (the login program) exists in the file system. Make sure the program file has the proper execute permissions so this user can run it and that the permissions for the directory containing the program are set properly so this user is allowed access. Make sure that the SETUID and SETGID flags are not set for this program.

User response

Try the OMVS command or OPEN subcommand again. If this problem persists, contact the system programmer with all information displayed in the second-level TSO/E message.