Comment 1 for bug 1611285

Upon investigation, it seems the common code (https://github.com/openstack/ironic/blob/master/ironic/drivers/modules/ipmitool.py#L1192) provides an ipmi_cmd in the format the shellinabox expects (uid/git/cwd). Manpage for shellinaboxd supports this theory. Additionally, socat does not support this syntax. This is what the reporter is encountering. Removing extraneous parameters allows reporter to correctly launch socat.