Introduction
In this tutorial we learn how to install hercules on Ubuntu 22.04.
What is hercules
hercules is:
Hercules is an open source software implementation of the mainframe System/370
and ESA/390 architectures, in addition to the new 64-bit z/Architecture.
This means that your PC can emulate an IBM mainframe processor. The
mainframe can range from a 360 to a z900 – running in “System/370â€
mode, “ESA/390†mode, or “z/Architecture†mode. Hercules executes
S/370, ESA/390, and z/Architecture instructions and channel
programs. It emulates mainframe I/O devices by using PC devices. For
example, 3390 DASD devices are emulated by large files on your hard
disk, and local 3270 screens are emulated by tn3270 sessions.
Hercules implements only the raw S/370, ESA/390, and z/Architecture
instruction set; it does not provide any operating system facilities. This
means that you need to provide an operating system or standalone program which
Hercules can load from an emulated disk or tape device. You will have to use a
free software operating system such as Linux, write the operating system or
standalone program yourself, obtain a license from IBM to run one of their
operating systems on your PC, or use IBM programs and operating systems which
have been placed in the public domain.
Virtual networking can be accomplished using the TUN/TAP driver in
host Linux kernel.
There are three methods to install hercules on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install hercules Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install hercules using apt-get by running the following command:
sudo apt-get -y install hercules
Install hercules Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install hercules using apt by running the following command:
sudo apt -y install hercules
Install hercules Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install hercules using aptitude by running the following command:
sudo aptitude -y install hercules
How To Uninstall hercules on Ubuntu 22.04
To uninstall only the hercules package we can use the following command:
sudo apt-get remove hercules
Uninstall hercules And Its Dependencies
To uninstall hercules and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove hercules
Remove hercules Configurations and Data
To remove hercules configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge hercules
Remove hercules configuration, data, and all of its dependencies
We can use the following command to remove hercules configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge hercules
References
Summary
In this tutorial we learn how to install hercules package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.
