Updated dash packages that fix one bug are now available for Red Hat Enterprise Linux 6.
The dash packages provide the POSIX-compliant Debian Almquist shell intended for small media like floppy disks.
Prior to this update, the dash shell was not an allowed login shell. As a consequence, users could not log in using the dash shell. This update adds the dash to the /etc/shells list of allowed login shells when installing or upgrading dash package and removes it from the list when uninstalling the package. Now, users can login using the dash shell.
All users of dash are advised to upgrade to these updated packages, which fix this bug.