The CFA-533 is an intelligent 16x2 character USB LCD display with a keypad. The repository provides a perl written program to set up the IP address/netmask, default gateway, and IPMI IP details of a server the LCD module is installed to.
More details about the LCD this https://www.crystalfontz.com/product/cfa533tmiku-display-module-usb-16x2-character.
Datasheet https://www.crystalfontz.com/products/document/3737/CFA533TFHKUv1.4.pdf.
Along with the provided source the repository contains .spec file to build a RPM package for CentOS 7/RHEL 7.
This is ready to install a RPM package on RHEL 7/CentOS 7 system.
It is a compressed directory cfa533lcd-2.0 received as tar czf cfa533lcd-2.0.tar.gz cfa533lcd-2.0/.
The directory contains files:
- lcd.pl – main executable program
- lcd.cfg – configuration file
- readwriteconfig – a helper which modifies files /etc/sysconfig/network-scripts/ifcfg-XXX when needed
- cfa533lcd.service - implements a systemclt unit to start/stop cfa533lcd service
Note: lcd.pl has hard-coded paths to lcd.cfg and readwriteconfig. Currenty these are reffered to as /opt/cfa533lcd/lcd.cfg and /opt/cfa533lcd/readwriteconfig. cfa533.lcd.service has a path hard-coded the same way. If you install the program into another place make sure these paths are properly updated.
All these files should be installed on a target system to work properly.
It contains file cfa533lcd.spec which is needed for building a RPM package and cfa533lcd-2.0.tar.gz which is needed to the same purpose.
Step 1. Install required package
$ sudo yum install -y rpm-build
Step 2. Prepare file system
On a build system create a non-privileged user, say rpm, and create required subdirectories in its home directory.
$ sudo useradd -m rpm
$ sudo su - rpm
$ mkdir ~/rpmbuild/{BUILD,RPMS,SOURCES,SPECS}
Step 3. Copy source files
Copy .tar.gz sources and .spec files into right places.
$ cp cfa533lcd-2.0.tar.gz ~/rpmbuild/SOURCES/
$ cp cfa533lcd.spec ~/rpmbuild/SPECS/
Step 4. Build an RPM package
$ cd ~/rpmbuild/SPECS
$ rpmbuild -ba cfa533lcd.spec
If everything goes without errors the build package will be placed as ~/rpmbuild/RPMS/cfa533lcd-2.0-1.el7.noarch.rpm. See output logs for more details
Install the package by any convinient way, for example
$ sudo yum install /path/to/rpm/cfa533lcd-2.0-1.el7.noarch.rpm
Enable it to be autoloadable when a target system boots
$ sudo systemctl enable cfa533lcd
And run it
$ sudo systemctl start cfa533lcd
Check that it is running
$ systemctl status cfa533lcd
The package depends on the basic tools usually presented into each CentOS and many other systems such as perl (lcd.pl) and sed (readwriteconfig). The only needed package that to be installed in advance or available in preconfigured repositories is ipmitool.
This program is tested only on CentOS 7.
Stop the cfa533lcd service and execute sudo yum remove cfa533lcd.
These program probably might be run without modifications on any of Linux distributives.