I had an opportunity to test some additional equipment recently. This is the general setup and install and basic configuration for the
Digi Portserver II 16 serial port server for
CentOS 5.5. All of this is just a step in adding additional capabilities to our
Hylafax servers. Additionally, other serial devices are also connected to give us network access to them. This includes serial port consoles and serial admin ports for some power strips to remotely power cycle some equipment if needed. The Digi Portserver II is not new and has been around for a while. This makes it cheap to pickup on eBay and use.
As a note, all commands that install something will need to be done as effective user "root". You can "sudo" your way there or just "su -"; your choice. Please take some time to
sanely setup a build environment on another box (if possible/practical).
This article is a follow up to a previous post on
How to get a Digi Edgeport/416 working with RHEL/CentOS 5
Here is the
Digi Portserver II overview from Digi. Nice starting point for information.
Here is the
Driver download page if the overview is too much reading.
For even less effort you can get the latest stable kernel driver this way:
wget ftp://ftp1.digi.com/support/driver/40002086_P.src.rpm
or grab the beta code like I did:
wget ftp://ftp1.digi.com/support/beta/linux/dgrp/dgrp-1.9-29.src.rpm
To build the kernel module, you will need a few prerequisite packages. These are the ones that got me what I needed. You may need more or less depending on what you already had installed:
yum -y install ncurses-devel openssl-devel rpm-build kernel-headers
rpmbuild --rebuild dgrp-1.9-29.src.rpm
Install the built dgrp-1.9-29.i386.rpm with rpm or yum. You could choose to reboot or more simply just run
modprobe dgrp
If you just want the command line setup for the tty ports under /dev/, you can run something like:
/usr/bin/dgrp/config/dgrp_cfg_node init -v -v -e never 1 IP_OR_HOSTNAME 16
If you prefer a GUI setup and have tk and xorg-x11-xauth at least installed:
/usr/bin/dgrp/config/dgrp_gui
Finding firmware version of your Digi Portserver II to tell if you need a firmware update:
telnet IP/hostname
#> cpconf term
May show something like:
# PortServerII Version 3.1.13 Nov 1 2006
Post dgrp driver setup with udev if you need:
For wide open perms edit /etc/udev/rules.d/10-dgrp.rules and change the line from
KERNEL=="tty_dgrp*", PROGRAM="/usr/bin/dgrp_udev %k", NAME="%c"
to
KERNEL=="tty_dgrp*", PROGRAM="/usr/bin/dgrp_udev %k", NAME="%c", MODE="0666", OPTIONS="last_rule"
For just group perms change to group "uucp" for example, alter original line from
KERNEL=="tty_dgrp*", PROGRAM="/usr/bin/dgrp_udev %k", NAME="%c"
to
KERNEL=="tty_dgrp*", PROGRAM="/usr/bin/dgrp_udev %k", NAME="%c", MODE="0660", GROUP="uucp"
A quick way to see all of the dev files created by the dgrp driver is the default major number 253 is kept:
ls -la /dev/|grep " 253"
Make sure the dgrp kernel module is loaded:
lsmod|grep dgrp
On a sad note, following these instructions will only create a kernel module for the current kernel. You will need to do rebuild on the dgrp package on any kernel update... sorry I have not yet incorporated kmod or
DKMS for a dynamic module build. There is hope for me if would just try
THIS link, however.
