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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Hardware’ Category

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Running SuperMicro IPMIView on MacOS

Posted by jpluimers on 2021/03/16

I wrote about SuperMicro mainboards and IPMIView recently, but that ran only on Windows and Linux. Since I focus my desktop mainly on MacOS, and never on Linux, I did not want to use the Windows IPMView (though it did work most of the time).

Not having a MacOS version sounded odd, as there was an iOS version:

[WayBack] ‎Supermicro IPMIView on the App Store “This app is only available on the App Store for iOS devices.”

A quick search made me find a few links:

The last one looked most promising, so I forked it.

Following the steps already made me write down a few notes for changes in the README.md file.

But then I bumped into a strange error when wanting to use the KVM Console from IPMIView, as it threw the same error all the time:

".jre/Contents/Home/bin/java": error=2, No such file or directory

I made a quick note in [WayBack] KVM Console cannot start due to java not found · Issue #1 · jpluimers/IPMIView.app · GitHub:

When starting a KVM Console, you get this error: ".jre/Contents/Home/bin/java": error=2, No such file or directory

Try to fix this.

Later I dug a bit deeper, and managed to fix it in the script steps of the README.md:

git clone https://github.com/TheCase/IPMIView.app
pushd IPMIView.app/
mkdir -p Resources/IPMIView
pushd Resources/IPMIView/
tar -zxvf ~/Downloads/IPMIView*.tar.gz --strip=1
pushd jre/
mkdir -p Contents/Home/bin
pushd Contents/Home/bin
ln -s `which java` java
popd
popd
popd
popd
rsync -avlo IPMIView.app/ ~/Applications/IPMIView.app/

Of course I ran into another problem on one of my SuperMicro machines: the KVM Console would consistently crash. Luckily that was solved by a IPMI Firmware Upgrade:

[WayBack] java – Supermicro IPMIView KVM Console does not work at all – Server Fault

The problem was the firmware for the IPMI on these boards was too old (not the same as the BIOS – updating the BIOS will not help in this case). Digging around SuperMicro’s site (never did get a reply from them), I found the Firmware Revision of 3.20 & was able to install it. On the IPMI device tab, under “Device Information”, you should see: Firmware Revision 3.20 IPMI Revision: 2.0 I can now see the KVM Console in both the IPMIView software

–jeroen

Posted in Hardware, IPMI, Mainboards, Power User, SuperMicro, X10SRH-CF, X9SRi-3F | Leave a Comment »

Supermicro | Products | Motherboards | Xeon® Boards | X9SRi-3F

Posted by jpluimers on 2021/03/12

I still like this board: Supermicro | Products | Motherboards | Xeon® Boards | X9SRi-3F.

It has been in a storage solution for a while, uses OK power, has not many SATA ports, but enough slots for expansion cards, and comes with two network connections and 8 slots which I fitted with a total of 256 gibibyte of memory.

Some links, as SuperMicro tends to hide them behind POST requests:

Note that IPMI over je Java Web Start.app runs into certificate signing issues, so better use Supermicro IPMIViewer for this:

IPMIView links via:

The errors when running the KVM Console from your web browser are waved away by SuperMicro, but more and more people bump into them:

–jeroen

Posted in Development, Hardware, Mainboards, Power User, Software Development, SuperMicro, Virtualization, VMware, VMware ESXi, X9SRi-3F | Leave a Comment »

I still print (relevant parts of) code. Have been for a long time. Will keep doing it.

Posted by jpluimers on 2021/02/24

In a response to [WayBack] Iris Classon on Twitter: “I’m curious, how many of you guys and gals have printed out code on paper to read later? Doing it during earlier years also counts 🤓”, I started the long read below starting with [WayBack] Jeroen Pluimers on Twitter: “Still do.… “.

Basically a more in depth coverage of my 2017 post Happy 60th birthday, Fortran.

[WayBack] Thread by @jpluimers: “@IrisClasson Still do. @IrisClasson There is a story behind these 1988 tractor feed print outs, which follows shortly. I should put dinosaur […]”

Still do.

There is a story behind these 1988 tractor feed print outs, which follows shortly.

I should put dinosaur or old-fart on my job description.

CC @isotopp

The story has to do with this.
A “translation” of [WayBack] Programming Fortran 77: A Structured Approach (ISBN-10: 0835956717) but I wish I had had the original back then, as in fact it was a knock off, mostly covering FORTRAN IV and 66.

Sidestory: these books were from the same era.

Machine learning and AI modern?

They are about as modern as AWK. Both still relevant though.

AWK is indispensable on many *n*x related systems, especially the low powered one. The book is still the ultimate source on it; see [WayBack] stackoverflow.com/a/703174/29290

text processing – Is there still any reason to learn AWK? – Stack Overflow

If you quickly learn the basics of awk, you can indeed do amazing things on the command line.

But the real reason to learn awk is to have an excuse to read the superb book The AWK Programming Language by its authors Aho, Kernighan, and Weinberger. You would think, from the name, that it simply teaches you awk. Actually, that is just the beginning. Launching into the vast array of problems that can be tackled once one is using a concise scripting language that makes string manipulation easy — and awk was one of the first — it proceeds to teach the reader how to implement a database, a parser, an interpreter, and (if memory serves me) a compiler for a small project-specific computer language! If only they had also programmed an example operating system using awk, the book would have been a fairly complete survey introduction to computer science!

Famously clear and concise, like the original C Language book, it also is a wonderful example of friendly technical writing done right. Even the index is a piece of craftsmanship.

Awk? If you know it, you’ll use it at the command-line occasionally, but for anything larger you’ll feel trapped, unable to access the wider features of your system and the Internet that something like Python provides access to. But the book? You’ll always be glad you read it!

 

Brandon Rhodes
Back to the story. With some side-steps to (:

Here we go…

This is end 1980s. I was a student. A year later I started my own consultancy as a side-thing.

The reason is that I had a client prospect for some PC Turbo Pascal programming. So I needed to buy some hardware. Only companies could buy hardware. So I started one.

en.wikipedia.org/wiki/Turbo_Pascal

2 years later, I was selling PC network hardware to a university research group, so they could connect to the internet. At 75% of what they would pay via their regular channels. My profit was large enough to cover for that year of studying.

Back to the print-outs.

They were on tractor-feed paper en.wikipedia.org/wiki/Continuous_stationery
We had a class: computer usage for chemistry students. It was mandatory. They were teaching from a FORTRAN 77 book that was in fact more FORTRAN IV and FORTRAN 66. Found a link to it too: [WayBack] Cursus Fortran 77, R.C. Holt, J.N.P. Hume
There were huge differences between these FORTRAN versions:

The way you would program in that class was via PC terminals with serial terminal emulation, connected to a VAX 11/780 machine running VAX/VMS 4.7.

The connection was through a multiplexed serial over an unshielded ribbon cable some 300 yards long.

en.wikipedia.org/wiki/Ribbon_cable

The connection was very reliable: about 90% of the characters would transmit correctly.

So I had to reset the VT52 terminal emulation over the Kermit protocol every minute or so, then wait a dozen seconds for the screen to re-draw.

At the chemistry department it was still a VAX 11/780 machine called HLERUL5, but at the computing department they had an 11/750 called RULCRI which was faster.

They also had a bunch of VT100 terminals that could do 132-columns instead of 80, with a far more reliable connection.

en.wikipedia.org/wiki/VT100

Later the chemistry department also got their own VAX 11/750, renamed the old one to HLERUL52 for the 2nd years studens to to work on, and kept the old HLERUL5 name.

The machines were networked too, so you could connect to one, then daisy-chain your logon to the others.

Long story short: later I managed to get official accounts on both chemistry department machines, and borrow an account on the computing department one. So I had accounts on HLERUL5, HLERUL52 and access to RULCRI when needed.
Later too, I found out that the room above the VAX 11/780 also had VT100 terminals (later even two VT240 terminals!). It wasn’t meant for student use though. But with some social engineering…

In the mean time, I wanted to make better use of the VAX/VMS FORTRAN compiler.

Apart from that it fully supported FORTRAN 77, it also had many more language features and had support for 132 columns instead of just 80.

Given FORTRAN had limited use of the leftmost 8 columns, having 124 usable columns instead of just 72 made a huge difference in readability.
There was no book in the library on VAX/VMS FORTRAN, but the on-line help was great: both vast and in-depth. With the bad serial documentation though, it was very hard to read on-line.

The easiest way to read things was on paper. I think the printer back then was a LA36 DecWriter II or LA120 DecWriter III

www.youtube.com/embed/T3TifjAX51I
www.youtube.com/embed/tJ1jkINFVho
www.youtube.com/embed/T3TifjAX51I

Printing one topic at a time however was cumbersome. Print jobs were not always printed in the right order, and sending like a 100 print commands that all were slightly different was hard too.
Luckily I found out two things:
  1. you could dump the output of a FORTRAN HELP page to a file
  2. you could recursively generate all FORTRAN HELP, then redirect that to a file
The recursion was great, as it would output everything in an orderly fashion. What was lacking though is a good table of contents. More on that in a bit.
So I decided to send that file to the printer. Of course I knew that would take something like an hour, so I printed it during lunch time.
I was back from lunch early to monitor the printing progress (VAX/VMS had queues for everything, and you could monitor the ones or the parts of ones you had access to!).

The printer was right next to the VAX 11/780 and both of them were very noisy. The climate control was even noisier, which meant you wanted to avoid that room whenever possible.

So shortly after my job was ready, I wanted to pick it up and make the 300 meter walk twice.

Right at that moment, the student assistent walked in with a red face, madly screaming “who the hell printed this one inch stack of FORTRAN help”.
I responded that I did. At first she (this was a time when we had a way better balanced female/male ratio in STEM) would not even want to give my output, refusing to believe I would read it.
She also would not believe that you cour recursively send the help to a file, then print it. But the stack of paper demonstrated otherwise.
I explained that I was going to read the whole stack. It took a long weekend, as after reading, I manually made the hand written table of contents on the front.
In addition, I colour marked the sides of the paper matching the entries in the table of contents.

Now I could index into the right topics very quickly.

She was amazed I did all that in just a weekend. Apparently, that’s how my brain copes with information: need something, read something, read something, use something.

Later she actually made use of that stack of paper, as it was a great way for other people too to figure out some things faster than doing it on-line.
Back to my side-business: that’s the reason for the PASCAL stack of paper. It’s the output of the VAX/VMS help for the PASCAL compiler. It was great and helped me learn a lot on the language.

That print job took far less time: it was printed from RULCRI to the printer at the computing department. Their printer was not a dot-matrix one, line printer. It was orders of magnitude faster.

3 years later, I started doing more and more work with Turbo Pacscal and made the business my full time work.

Only a decade later, I found out why I had deverted less and less energy into my studies and more into work.

Two reasons: computers are way easier to cope with than people, and a theoretical university was totally the wrong kind of environment for my learning mode: I am an auto-didactic person. I need to do things in order to learn.
By now I have slowly learned way and way more about people. Coping with them is still tough, taking a lot of energy. But by now it is also a lot of fun. Though doing both at the same time is still very very hard for me.

Finally back to the STRUCT print job:

That was actually the FORTRAN program I developed for the assignment.

You could choose from multiple problems to solve during the assignment.

As one of the few students, I managed to finish it in-time.

I was the only one that took this particular problem.

The essence is that you got a few tables with data:

  • atom numbers, atom abbreviation and atom covalence (the number of other atoms they can bond with)
  • bond pairs with abbreviations and minimum/maximum distance
  • atom locations (abbreviation plus X/Y/Z coordinate)
The goal was to find which atoms were connected, and describe any cycles.

Only after reading the tables, then trying to solve the problem, I found out a recursive solution was needed to solve it.

Boy was I surprised that FORTRAN did not support recursion.

In the end, I implemented my own recursion with stacks citing a Dire Straits song with “and when you finally reappear, at the place where you came in…”.

A long story to explain I started printing on things to read very early on (:

/end

–jeroen

Read the rest of this entry »

Posted in Algorithms, Development, Fortran, Power User, Printers, Software Development | Leave a Comment »

Automatically closing ABBY Finereader 5.0 windows after scanning is completed

Posted by jpluimers on 2021/02/23

Both my Fujitsu ScanSnap ix500 and ix100 scanners can be used from Windows to automatically scan to PDF.

PDF conversion is done through the included ABBYY FineReader 5.0 software.

However, on each scan, it keeps a dialog open with the scan results, even if scanning went fine.

When scanning lots of documents, lots of dialogs are open, causing two problems:

  • a lot of memory and window handle resource usage
    • this can be ~100 megabytes per instance
  • a lot of disk usage:
    • it keeps both the non-OCR and OCR PDF files active (only when closing, the non-OCR PDF file is deleted)

I wanted to close that dialog automatically, but none of the configuration settings allow it.

So I wrote a quick and dirty solution, that could have been in any tool supporting the Windows API and call backs. The solution below should easily translate to tools other than Delphi.

These are the only Windows API functions used:

these types:

and these constants:

The basic structure is an EumWindows call passing a callback that gets called for all top level Windows, then in the callback, for matching captions: call EnumChildWindows with another callback. In that callback, for matching captions and child captions, perform a click or close.

Related posts:

Log of Windows related to both programs:

ParentHWnd=$00000000;HWnd=$00030602;IsVisible=-1;IsOwned=0;IsAppWindow=-1;WindowTextLength=33;WindowText="ABBYY FineReader for ScanSnap 5.0"
> Recursive child windows for ABBYY
  ParentHWnd=$00030602;HWnd=$000205E2;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=0;WindowText=""
  ParentHWnd=$00030602;HWnd=$000205E0;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=0;WindowText=""
  ParentHWnd=$00030602;HWnd=$000205EC;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=0;WindowText=""
  ParentHWnd=$00030602;HWnd=$000205EA;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=74;WindowText="Register your copy of ABBYY FineReader and receive the following benefits:"
  ParentHWnd=$00030602;HWnd=$000205E8;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=25;WindowText="- Free technical support;"
  ParentHWnd=$00030602;HWnd=$000205E6;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=51;WindowText="- Information about new versions of ABBYY products."
  ParentHWnd=$00030602;HWnd=$000205E4;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=12;WindowText="Registration"
  ParentHWnd=$00030602;HWnd=$000205FC;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=0;WindowText=""
  ParentHWnd=$00030602;HWnd=$000205FA;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=6;WindowText="&Close"
  > Child is Close button: clicking.
  < ParentHWnd=$00000000;HWnd=$00030602;IsVisible=-1;IsOwned=0;IsAppWindow=-1;WindowTextLength=33;WindowText="ABBYY FineReader for ScanSnap 5.0"
  ParentHWnd=$00030602;HWnd=$000205F6;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=34;WindowText="Processing finished (warnings: 1)."
  ParentHWnd=$00030602;HWnd=$000205F4;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=31;WindowText="Converting to searchable PDF..."
  ParentHWnd=$00030602;HWnd=$000205F0;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=0;WindowText=""
  ParentHWnd=$00030602;HWnd=$000205EE;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=0;WindowText=""
  ParentHWnd=$00030602;HWnd=$000205D2;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=63;WindowText="Page 1. Make sure the correct recognition language is selected."

ParentHWnd=$00000000;HWnd=$00010248;IsVisible=-1;IsOwned=-1;IsAppWindow=0;WindowTextLength=14;WindowText="Creative Cloud"
> Recursive child windows for Creative Cloud
  ParentHWnd=$00010248;HWnd=$0001024A;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=28;WindowText="Main Container Client Dialog"
  ParentHWnd=$00010248;HWnd=$0002034A;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=3;WindowText="IMS"
  ParentHWnd=$00010248;HWnd=$0001035A;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=0;WindowText=""
  ParentHWnd=$00010248;HWnd=$00020350;IsVisible=-1;IsOwned=0;IsAppWindow=0;WindowTextLength=18;WindowText="Sign in - Adobe ID"
  > Child is Signin button: closing parent.
  < ParentHWnd=$0003011A;HWnd=$00010248;IsVisible=-1;IsOwned=-1;IsAppWindow=0;WindowTextLength=14;WindowText="Creative Cloud"
    < ParentHWnd=$00000000;HWnd=$0003011A;IsVisible=0;IsOwned=0;IsAppWindow=0;WindowTextLength=4;WindowText="Core"

It appears that ABBYY has a different set of booleans than Creative Cloud.

This is kind of odd, as delphi – How to get captions of actual windows currently running? – Stack Overflow points to Window Features – Windows applications | Microsoft Docs: Owned Windows stating:

The Shell creates a button on the taskbar whenever an application creates a window that isn’t owned. To ensure that the window button is placed on the taskbar, create an unowned window with the WS_EX_APPWINDOW extended style. To prevent the window button from being placed on the taskbar, create the unowned window with the WS_EX_TOOLWINDOW extended style. As an alternative, you can create a hidden window and make this hidden window the owner of your visible window.

Apparently, ABBYY fully plays by the rules, but Creatheive Cloud cheats a bit: none of the Windows are WS_EX_APPWINDOW, but the hidden unowned “Core” owner of the “Creative Cloud” still makes it appear on the taskbar.

–jeroen

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Posted in Delphi, Development, Fujitsu ScanSnap, Hardware, ix100, ix500, Power User, Scanners, Software Development, Windows Development | Leave a Comment »

One second code: Do YOU know how much your computer can do in a second?

Posted by jpluimers on 2021/02/11

[WayBack] One second code: Do YOU know how much your computer can do in a second? is a quiz version of the [WayBack] Numbers Every Programmer Should Know By Year.

[WayBack] About this game revealed it was made by 3 people curious in the speed of their hardware which – not surprisingly – has been relatively stable over the last decade or so.

Source code is at [WayBack] GitHub – kamalmarhubi/one-second: Fun performance game!

I bumped into it via these tweets:

I like games like this (ever played the The Deadlock Empire multi-threading game?), so I played the computers-are-fast.github.io tests, and learned a lot:

Read the rest of this entry »

Posted in Conference Topics, Conferences, Development, Event, Hardware, Power User, Software Development | Leave a Comment »

🔎Julia Evans🔍 on Twitter: “ethtool… “

Posted by jpluimers on 2021/02/08

[WayBack] 🔎Julia Evans🔍 on Twitter: “ethtool… “

With a lot of responses, including:

–jeroen

Posted in *nix, *nix-tools, Network-and-equipment, Power User | Leave a Comment »

A choco install list

Posted by jpluimers on 2021/02/03

Sometimes I forget the choco install mnemonics for various tools, so here is a small list below.

Of course you have to start with an administrative command prompt, and have a basic Chocolatey Installation in place.

If you want to clean cruft:

choco install --yes choco-cleaner

Basic install:

choco install --yes 7zip
choco install --yes everything
choco install --yes notepadplusplus
choco install --yes beyondcompare
choco install --yes git.install --params "/GitAndUnixToolsOnPath /NoGitLfs /SChannel /NoAutoCrlf /WindowsTerminal"
choco install --yes hg
choco install --yes sourcetree
choco install --yes sysinternals

For VMs (pic one):

choco install --yes vmware-tools
choco install --yes virtio-drivers

For browsing (not sure yet about Chrome as that one has a non-admin installer as well):

choco install --yes firefox

For file transfer (though be aware that some versions of Filezilla contained adware):

choco install --yes filezilla
choco install --yes winscp

For coding:

choco install --yes vscode
choco install --yes atom

For SQL server:

choco install --yes sql-server-management-studio

For web development / power user:

choco install --yes fiddler

For SOAP and REST:

choco install --yes soapui

If you don’t like manually downloading SequoiaView at gist.github.com/jpluimers/b0df9c2dba49010454ca6df406bc5f3d (e8efd031d667de8a1808d6ea73548d77949e7864.zip):

choco install --yes windirstat

For drawing, image manipulation (paint.net last, as it needs a UI action):

choco install --yes gimp
choco install --yes imagemagick
choco install --yes paint.net

For ISO image mounting in pre Windows 10:

choco install --yes wincdemu

For hard disk management:

choco install --yes hdtune
choco install --yes seatools
choco install --yes speedfan

For Fujitsu ScanSnap scanners (not sure yet this includes PDF support):

choco install --yes scansnapmanager

–jeroen

Posted in 7zip, atom editor, Beyond Compare, Chocolatey, Compression, Database Development, Development, DVCS - Distributed Version Control, Everything by VoidTools, Fiddler, Firefox, Fujitsu ScanSnap, git, Hardware, Mercurial/Hg, Power User, Scanners, SOAP/WebServices, Software Development, Source Code Management, SQL Server, SSMS SQL Server Management Studio, SysInternals, Text Editors, Versioning, Virtualization, VMware, VMware ESXi, vscode Visual Studio Code, Web Browsers, Web Development, Windows | Leave a Comment »

Node-RED is on my research list.

Posted by jpluimers on 2021/01/19

Cool stuff that is on my research list: redundancy through Node-RED.

NodeRED Multi-Node Redundancy Example – YouTube:

A simple proof of concept showing how to implement multi-node redundancy using four NodeRED instances, with Modbus TCP Remote IO.

Example Flow: https://app.box.com/s/mevo3fq9u6x6khr…

Parts used:

  • WAGO
    • 750-352 Ethernet Coupler ModbusTCP
    • 750-1506 8ch DI/DO 24VDC Module
    • 750-461 RTD Module
    • 750-600 End Module
    • 787-1602 24VDC 1A PS
    • 789-801 DIN push button
  • Raspberry Pi 3b +
  • DIN Rail mount: www.DINrPlate.com

–jeroen

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Posted in Development, Hardware, Software Development | Leave a Comment »

Google Chrome URL chrome://devices/ -> your registered Google Cloud devices like printers

Posted by jpluimers on 2021/01/18

Just learned a new Google Chrome URL chrome://devices/ which lists your Google Cloud devices like printers.

Though in the case of OKI printers, you have to enter your printers at the printer which the Menu button is a painful exercise. [WayBack] oki-c332dn-control-panel_maxwidth.jpg (525×550).

You can also view the device list in https://www.google.com/cloudprint#printers

For some OKI printers (including the MC342 series) you need to update the firmware. For a Mac, you need the below firmware update tool that automagically:

  1. detects the printers
  2. finds the firmware on the internet
  3. updates the printer

Tool: [WayBack] FWUP_020000_10.7.dmg via [WayBack] Firmware Update | OKI Global

–jeroen

Posted in Chrome, Google, Hardware, OKI C332, OKI Printers, Power User | Leave a Comment »

Forced routing of selective emails to ISP SMTP via Mikrotik Routing | Syed Jahanzaib Personal Blog to Share Knowledge !

Posted by jpluimers on 2021/01/14

For my link archive: [WayBack] Forced routing of selective emails to ISP SMTP via Mikrotik Routing | Syed Jahanzaib Personal Blog to Share Knowledge !

–jeroen

Posted in Development, MikroTik, Power User, RouterOS, routers, Scripting, Software Development | Leave a Comment »

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