#Ubuntu

3 Followers · 33 Posts

Ubuntu is an open-source operating system for computers. It is a Linux distribution based on the Debian architecture.

Article sween · Sep 10, 2025 6m read

A step by step implementation path to a cross regional stretched IrisCluster with Mirroring using the Intersystems Kubernetes Operator (IKO), Google Cloud Platform, and Tailscale.

I am giving this distraction the code name "Compliment Sandwich" for a reason yet to be realized, but I'd rather the community go right for the jugular shooting holes in a solution that implements wireguard based connectivity for our workloads in general, as I would like to refine it as a fall project leading up to KubeCon in Atlanta and if I miss the mark, Ill get it done before Amsterdam. 


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Article Guillaume Rongier · Jul 31, 2025 4m read

img

This article will introduce you to the concept of virtual environments in Python, which are essential for managing dependencies and isolating project from the OS.

What is a Virtual Environment?

A virtual environment is a folder that contains :

  • A specific version of Python
  • At start an empty site-packages directory

Virtual environments will help you to isolate your project from the OS Python installation and from other projects.

How to use it?

To use virtual environments, you can follow these steps:

  1. Create a virtual environment: You can create a virtual environment using the venv module that comes

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Question Oliver Wilms · Oct 12, 2024

What is the reason for

RUN apt-get update && apt-get install -y \
    git \
    nano \
    python3-opencv \
    sudo && \
    /bin/echo -e ${ISC_PACKAGE_MGRUSER}\\tALL=\(ALL\)\\tNOPASSWD: ALL >> /etc/sudoers && \
    sudo -u ${ISC_PACKAGE_MGRUSER} sudo echo enabled passwordless sudo-ing for ${ISC_PACKAGE_MGRUSER}
 

I think I get error because I do not have sudo privilege in the environment where I use podman to build the image

podman build --tag oliver3 .

I cloned iris-pero-ocr repo, added two large files into misc location, and I tried to build image. I see this:

Setting up libgl2ps1.4

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Article Robert Cemper · Feb 24, 2024 2m read

I want to address the nasty problems about reading a flat text in ASCII, UTF*
explicitly excluding HTML, EBCDIC, and other encoding.
According to Wikipedia there are at least 8 variations of control characters.

  • CR+LF is typical for Windows
  • LF is typical for the Linux/UNIX world
  • CR is Mac's favorite

As you can deduct from the names the inspiration comes from mechanical typewriters.

In IRIS* similar as in Caché or Ensemble or ... the classes %Stream* and %File* offer
the same property with the same default 
• property LineTerminator as %String(MAXLEN=10) [ InitialExpression =

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Question Jonathan Day · Feb 7, 2024

Hi,

I'm having a few issues with keeping Ubuntu happy and stable, and it seems to be something at the OS level rather than within IRIS itself. My thought is to simply pare back the stuff that Ubuntu LTS runs by default, which will free up system resources (which really shouldn't be a problem, but it might help) and reduce the amount that can go wrong.

Are there any guides as to what can be safely disabled at boot time, or are required to be enabled?

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Question Jonathan Day · Jan 19, 2024

I am looking to run IRIS for UNIX on the Linux Ubuntu 22.04 platform and need to determine which filesystem configurations are considered supported. The three options under consideration are Ext4, LVM with Ext4, and OpenZFS. Currently, the system is running on a raw Ext4 filesystem, but there is a desire to switch to either LVM with Ext4 or OpenZFS to make it easier to handle disk usage.

This leads to two questions:

Are either of these two configurations considered to be tested and supported by InterSystems?

Are there any issues or concerns with transitioning data and logs from a raw Ext4

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InterSystems Official Andreas Dieckow · Jan 18, 2024 2m read

For your convenience InterSystems is posting the typical install steps for the operating systems that are supported with InterSystems IRIS.

For Microsoft Windows, please consult the InterSystems product documentation.

The IRIS installer will detect if a web server is installed on the same machine, which gives you the option to automatically have the web server configured.

All Apache installations will require sudo (recommended) or root permission to install the web server. This requirement supports recommended best practices. 

For Red Hat (RHEL), InterSystems is installing SELinux files to

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Question Cyril Grosjean · Jan 2, 2024

Hi,

I'm trying to access to my datas stored in a RecordMap from SQLAlchemy, and I need to access to any tables already created before using SQLAlchemy.

Here is some part of my code :

TestBase:

classTestBase(DeclarativeBase):
    CreatedAt: Mapped[int] = mapped_column(TIMESTAMP, default=func.now())
    UpdatedAt: Mapped[int] = mapped_column(TIMESTAMP, default=func.now(), onupdate=func.current_timestamp())

 

Engine creation and entities binding :

bases = {
    "TEST": TestBase.metadata.create_all,
}

defcreate_engine_and_session(namespace: str) -> Session:
    engine: Engine = create_engine(f"
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Question Flávio Lúcio Naves Júnior · Dec 21, 2023

Hello everyone,

I'm currently conducting tests using the docker image intersystemsdc/irishealth-ml-community:latest. I'm accessing the Linux terminal and attempting to utilize the superuser functions, but I'm encountering an issue with the password. Could someone assist me, please?

Best Regards,
Flávio

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Question Robert Cemper · Nov 20, 2023

While creating my latest examples for the JavaContest I faced the need
to communicate with my code from a program in IRIS to my Java code.

Communication with |CPIPE| worked as READ or WRITE  but not both?
In the Documentation Named PIPEs are explained rather shortly.
"Once open, a pipe acts like an ordinary device."  Not so precise.
I failed to achieve my expected READ/WRITE  as TCP would offer. 

Has anyone a working example to demonstrate it? 
Any suggestion is welcome.

I found a workaround for my actual case.
Though I'm not so happy with it.

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Question Prashant Sonnaik · Apr 29, 2023

Have just deployed IRIS in Azure and when accessing the filesystem through SSH I just can't see the ISC folder through the WSL ubuntu user, what am I missing here?

As I want to create new folders and use the same in test productions.
the needed directories are created in /home/azureuser but the same is not visible in IRIS file system

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Article Roger Merchberger · Mar 30, 2023 8m read

Is anyone like me, and felt really jealous that they didn't have enough points to acquire the IRIS-based Raspberry Pi system when it was offered? Do you have a spare Raspberry Pi 4 handy? If so, I'll walk you through setting up Docker and IRIS on your Raspberry Pi so you can have the smallest IRIS computer in town!

Things you'll need:

Raspberry Pi 4 (at least 4G RAM, but I have several with 8G so that's what I used. 2G RAM *might* work, but there might be a lot of swap file activity which would slow down the process considerably)
MicroSD card (at least 16G, but I'd recommend 32G or more)
Power

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Question Jeffrey Drumm · Feb 10, 2023

I've been trying for a while now to get OS authentication working on IRIS running on Ubuntu 20.04 and subsequently 22.04. I have the following authentication methods enabled for %Service_Terminal:

  • Operating System
  • Password
  • Operating System Delegated Authorization

And i have these options selected in Authentication/Web Session Options:

But when logging in via iris session <instancename> I am always prompted for a username and password. I am logged into the operating system with a username that matches my IRIS username, and the same configuration and login method works fine on Red Hat 8.5.

Is

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Question Diego Petey · May 27, 2022

Hi everyone, I'll be honest with you I don't have much idea how to do this, but I was asked to install IRIS for Health on an AWS ubuntu machine(ssh -i "teleker-net.pem" ubuntu@xx.xxx.xx.xxx(no I will put the real number)). My boss has sent me the .key and .pem files that I am supposed to need for the installation.

I am quite confused with the information that I have found to connect to AWS because it is not that I want to do it from any new, but that I need to connect to a machine that already exists, but I do not think so.I do not know if I explain myself very well.

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Article Nigel Salm · Sep 16, 2021 3m read

I have just created a new Global Master Topic, "IRIS Cheatsheets".IRIS has introduced a lot of new functionality, especially in scripting languages, FHIR R4 support, enhanced Interoperability Tools, and IRIS Analytics.Having spent 35 years working on Windows-based PC's and Laptops, I have surprisingly little knowledge of Linux, Docker and Git.Furthermore, I have written almost every application and Interface in ObjectScript with splatterings of SQL, .Net, and Java Gateways and the most basic knowledge of WinSCP, Putty, SSH.All that changed when I received my first Raspberry Pi.

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Question Garin Frost · Sep 25, 2021

Starting installation
Starting up InterSystems IRIS for loading...
../bin/irisinstall -s . -B -c c -C /usr/irissys/iris.cpf*IRIS -W 1 -g2 
Starting Control Process
Unable to allocate 242 MB shared memory...
Unable to allocate 232 MB shared memory...
Configuring minimum system...
Unable to allocate 139 MB shared memory...
Unable to allocate shared memory minimum of 139MB (errno=22)
Startup aborted.
Startup error. See messages.log for more information.
Call InterSystems Technical Support if you need assistance.
IRIS startup returned 1.
InterSystems IRIS failed to start.
Check /usr/irissys/mgr/messages.log

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Question Igor Barboza · Sep 23, 2021

I'm trying to install IRIS 2021.1 in the Ubuntu 18.04 but all the time I got the message below:

Starting installation
Starting up InterSystems IRIS for loading...
Invalid ownership for ./irisdb
InterSystems IRIS is already up!
Status code is 1
InterSystems IRIS failed to start.
Check /mnt/WinData/InterSystemsLinux/mgr/messages.log for more details.
Call InterSystems Technical Support if you need assistance.

* Installation aborted *


Post-installation tasks failed, installation is not complete

Has anyone had the same problem?

I tried to install with root as well but the problem persist.

Thank you all.

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Article Jose-Tomas Salvador · Apr 8, 2020 6m read

This time I want to talk about something not specific to InterSystems IRIS, but that I think is important if you want to work with Docker and your server at work is a PC or laptop with Windows 10 Pro or Enterprise.

As you likely know, containers technology comes basically from Linux world and, nowadays, is on Linux hosts were it shows maximum potential. Those who use Windows on a normal basis see that both, Microsoft and Docker, have done important efforts during these last years that allow us to run containers based on Linux images on our Windows system in a really easy way... but it's something not supported for production systems and, this is the big problem, is not reliable if we want to keep persistent data outside of containers, in the host system,... mostly due to the big differences between Windows and Linux file systems. In the end, Docker for Windows itself uses a small linux virtual machine (MobiLinux) to run the containers... it does it transparently for the windows user... and it works perfectly well if, as I said, you don't require that your databases survive longer than the container...

Well,...let's get to the point,... the point is that many times, to avoid issues and simplify, we need a full Linux system and, if our server is based on Windows, the only way of having it is through a virtual machine. At least till WSL2 in Windows is released, but that will be another story and sure it'll take a bit of time to become robust enough.

In this article, I'll tell you, step by step, how to install an environment where you'll be able to work, if you need it, with Docker containers on an Ubuntu system in your Windows server. Let's go...

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Article Robert Cemper · Apr 26, 2021 3m read

Why SSH ?

If you do not have direct access to the server that runs your IRIS Docker container
you still may require access to the container outside "iris session" or "WebTerminal".
With an SSH terminal (PuTTY, KiTTY,.. ) you get access inside Docker, and then, depending
on your needs you run "iris session iris" or display/manipulate files directly.

Note: 
This is not meant to be the default access for the average application user
but the emergency backdoor for System Management, Support, and Development.
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Article Robert Cemper · Apr 16, 2021 1m read

Some changes in IRIS configuration require a restart of IRIS.
This is no big issue as long as I have access to the server command line with sufficient privileges.
In a container, this is not always given.
Stopping IRIS from the terminal/session prompt is no problem.
But the restart after is.  

Note1: container start-stop is no option as it might be removed by option --rm in docker run
Note2: the target is linux (manly in docker).  Windows is excluded

GitHub

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Announcement Steven LeBlanc · Feb 19, 2020

AWS launched their first generation of Amazon EC2 A1 instances last year, powered by Arm-based AWS Graviton processors. At AWS re:Invent 2019, Amazon announced the second-generation AWS Graviton2 processors and associated Amazon EC2 M6g instance type, boasting up to 40% better price performance over current generation Intel Xeon based M5 instances.

The AWS Graviton2-based M6g instances are currently in preview, and InterSystems jumped on the opportunity to measure their performance with the InterSystems IRIS Data Platform.

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Question Paras Batheja · Oct 13, 2020

Hi team

We are migrating the Code set of VMS to Unix. 
In this process we are also taking care of all I/O operations of file. 
In VMS, whenever we create a file, it generates a Version # associated with the file. Best part is we have a common library which we use to OPEN/USE/CLOSE/DELETE/RENAME/COPY the file.
Now, when we talk about VMS on cache, if we two processes creates a file "ABC.TXT", for 1st process it will create the version #1 and for second it will create #2.
This versioning cache handles internally, like which cache process is referring to #1 and which one for #2

Can someone help me to

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InterSystems Official Steven LeBlanc · May 13, 2020

AWS has officially released their second-generation Arm-based Graviton2 processors and associated Amazon EC2 M6g instance type, which boasts up to 40% better price performance over current generation Intel Xeon based M5 instances. 

A few months ago, InterSystems participated in the M6g preview program, and we ran a few benchmarks with InterSystems IRIS that showed compelling results. This led us to support ARM64 architectures for the first time.

Now you can try InterSystems IRIS and InterSystems IRIS for Health on Graviton2-based Amazon EC2 M6g instances for yourselves through the AWS Marketplace!

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Article Robert Cemper · May 14, 2020 1m read

Allow limited durability for demo and development IRIS-Docker-micro-Durability During development of a container based demo I found the need to access a fresh docker
an instance of IRIS image (e.g intersystems/iris-community:2020.2.0.199.0) over and over.
To bypass loading my code repeatedly, I developed this workaround.

Docker support

The principle of a persistent IRIS database outside the container is unchanged.
But now the whole setup is moved into Dockerfile and docker-compose.yml

Prerequisites

Make sure you have git and Docker desktop installed.

Installation

Clone/git pull the repo into any local

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InterSystems Official Andreas Dieckow · Dec 6, 2016

Starting with 2017.1, InterSystems is adding Ubuntu (64-bit) as a third linux server platform. Prior to 2017.1 Ubuntu was already available as a development platform and customers could use InterSystems distributions build for SUSE to run on Ubuntu. As a result there are a few license key implications for 64-bit linux versions starting with Caché and Ensemble 2017.1:

a) Customers using RedHat will observe no changes

b) Customers using InterSystems products(1) for SUSE on SUSE will need new license keys (no charge)

c) Customers using InterSystems products(1) for SUSE on Ubuntu will need new

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Question Kurt Hofman · May 15, 2018

Hello, I'm trying to install CSP Gateway on Ubuntu 18.04 (Apache) with the installer CSPGateway-2018.1.1.638.0-lnxubuntux64.tar.gz but it doesn't seem to work.  I keep getting access-denied when I try to open CSP-pages or the CSP Management portal.

Does someone have an installation-manual or so ?

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Question Alexey Maslov · Mar 6, 2018

I have one in my testing environment. According to https://community.intersystems.com/post/licensing-ubuntu-and-suse-20171-and-later, I should move to native Ubuntu build with 2017.2. So I downloaded Cache for UNIX (Ubuntu Server LTS for x86-64) 2017.2.1 and tried to update my existing 2015.1.4 installation. What I got was:

Upgrade from lnxsusex64 platform is not allowed.

No packages will be installed.

Meanwhile new Cache 2017.2 instance was installed without any problem.

The question is: how to upgrade an existing one?

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