Does anyone know where plesk pulls its list of available shells under the domain setup page? I am on a box which is missing /bin/bash (chroot), though the majority of the system users on the machine have the shell:

/usr/local/psa/bin/chrootsh

On a redhat/centos machine, chrootsh is provided by the base psa package. I have also checked that chrootsh is specified in /etc/shells. I have poked around the psa database, but have not been able to ascertain where the drop down box is populated from.