If accidentally you removed PIP from your windows machine, or you attempted a PIP upgrade which failed after removing the current version, and let you unable to install it anymore, you can address it this way.
I have updated CTOP.py so now it detects if is running in a Google GCP instance.
So the list of instances/type of virtualization detected is:
I’m working in detecting Raspberry Pi, models running CTOP, and in enabling the plugins system so anybody can easily expand the functionality of ctop.py.
v.0.7.8 Commented annotations and type hinting, to make CTOP compatible with Python 3.5.0. Added Available RAM. Added Google GCP detection. Inform if it doesn't have permissions to decode DMI. Print the userId (numeric) and the User (string), like: 1000 carles or 0 root. Logic for swappiness <= 10 Ok, >10 and <= 30 warning, >30 red (alert). Reduced digits for swap to 2, to avoid confusions.
I have updated my book Python 3 Combat Guide, with another full cycle, step by step, to convert an ugly script that escapes to shell to a nice OOP code with Unit Testing, step by step.
I have updated my book ZFS for Ubuntu 20.04 LTS, adding how to create a pool and Datasets for home, sharing NFS for the Media Player.
If you like Star Wars and the Mandalorian, you may laugh has much as I did with this video:
I continue teaching programming classes to some people, Pyhon and Java.
As you see I’m writing more articles about Windows, Mac Os X, and proprietary Software. Some of my colleagues work in companies and use proprietary Software, so I’ll be writing more articles about those ecosystems. I spend more time now with colleagues working on all kind of projects, and with students that have other problems too, so I help them. However my main focus is Open Source, Architecture, Scaling, programming in Python and Java.
You know I love Linux. I was compiling my own Kernels back in 1995, when it took more than 24 hours in a 386, and working on the first ISPs in Barcelona managing the Linux Systems.
For my computers I prefer Linux, no doubt about it, but many multinationals I worked for have Windows option only for the Laptops and Desktops.
During years I had to deal with sending files to Linux or Unix (HP UX, Sun Solaris…) to process them and getting back the result. Some sort of ETL and Map Reduce in the prehistory of personal computers, taking in count aspects like Networks speeds too, available space, splitting files for processing.
When I was working as Senior Project Manager in Winterthur Insurance, now Axa, I had to run a lot of ETL (Extract Transform Load) for considerably big files, or when I was project manager and later head of department in Volkswagen gedas or later helping Start ups like Privalia. I can tell you that Windows didn’t like you to open editors to work with 1GB text or CSV file, and doesn’t like it, even if your computer has 16GB of Memory, and even if they do the simplicity of Bash scripts and using pipes, grep, awk… is so powerful that is very convenient to have those files processed using Linux.
And honestly is a pain to send back and forth files to a UNIX System just for Data Crunch. And a VM will be slow and use memory, and you have enable some sort of sharing with it so it can access the Data. Not to talk if you need to split the data files in blocks to be processed in parallel by several computers.
There are many solutions, like using Virtual Machines, Docker, external Servers, etc…
WSL allows you to run Linux command line tools inside Windows.
The recommended way to install Ubuntu on WSL is through the Microsoft Store.
The following Ubuntu releases are available as apps on the Microsoft Store:
Ubuntu 16.04 LTS (Xenial) is the first release available for WSL. It supports the x64 architecture only. (offline installer: x64)
Ubuntu 18.04 LTS (Bionic) is the second LTS release and the first one supporting ARM64 systems, too. (offline installers: x64, ARM64)
Ubuntu 20.04 LTS (Focal) is the current LTS release, supporting both x64 and ARM64 architecture.
Ubuntu (without the release version) always follows the recommended release, switching over to the next one when it gets the first point release. Right now it installs Ubuntu 20.04 LTS.
Each app creates a separate root file system in which Ubuntu shells are opened but app updates don’t change the root file system afterwards. Installing a different app in parallel creates a different root file system allowing you to have both Ubuntu LTS releases installed and running in case you need it for keeping compatibility with other external systems. You can also upgrade your Ubuntu 16.04 to 18.04 by running ‘do-release-upgrade’ and have three different systems running in parallel, separating production and sandboxes for experiments.
But if you prefer, instead of using the Windows Store, you can download the appx.
Assuming you used the Windows Store, if you did not reboot and try now to execute it for the first time, or you go to the Command Line and write bash, or open Ubuntu from Windows menu, whatever method you use, you’ll get the abovementioned error.
If that happens to you, just reboot and when you open it will work and will start the install and ask for a user and password:
From here you’re able to update the system, execute the text commands available in Linux, access to the Windows drives, launch htop, git, Python3, apt, wget… copy and paste between windows and Linux terminal, share PATH…
And of course you can run CTOP.py
Take in count that the space reported in / partition is not real, and that you have a 4GB swap.
I have benchmarked three different CPUs and two Compute optimized Amazon AWS instances with CMIPS 1.0.5 64bit. The two Intel Xeon baremetals equip 2 x Intel Xeon Processor and the third baremetal equips a single Intel Core i7-7800X:
If you’re surprised by the number of cores reported by the Amazon instance m5d.24xlarge, and even more for the baremetal c5n.metal, you’re guessing well that this comes from having Servers with 4 CPUs for Compute Optimized series.
When I can choose I use Linux, but in many companies I work with Windows workstations. I’ve published a list of useful Software I use in all my Windows workstations.
WFH I currently use two external monitors attached to the laptop. I planned to add a new one using a Display Port connected to the Dell USB-C dongle that provides me Ethernet and one additional HDMI as well. I got the cable from Amazon but unfortunately something is not working. In order to make myself comfortable and see some the graphs of the systems worldwide as I have on the office’s displays, I created a small HTML page, that joins several monitor pages in one single web page using frames. This way I only have one page loaded on the browser, maximized, and this monitor is dedicated to those graphs of the stats of the Systems. Something very simple, but very useful. You can extend the number of columns and rows it to have more graphics in the same screen.
If you don’t have the space or the resources for more monitors you can use the ingenious.
I have a cheap HDMI switch that allows me to do PinP (Picture in Picture) with one main source on the monitor, and two using a fraction of their original space. It may allow you to see variants in graphics.
And in you have only a single monitor, you can use a chrome extension that rotates tabs, which is also very useful.
Be careful if you use the reload features with software like Jira or Confluence. If they are slow normally, imagine if you mess it by reloading every 30 seconds… I discourage you to use auto refresh on these kind of Softwares.
This past week I have connected the XBOX One X Controller to the Windows laptop for the first time. Normally I use the Pc only for strategy games, but I wanted to play other games like Lost Planet 3, or Fall Guys in a console mode way. I figured that would be very easy and it was. You turn on the controller, press the connect button like you did to pair with the console, and in Windows indicate pair to a Xbox One controller. That’s it.
I’ve also updated my Python 3 Combat Guide, to add the explanation, step by step, about how to refactor and make resilient, and add Unit Testing to a spaghetti code, and turn it into a modern OOP. Is currently 255 DIN-A4 pages.
This is something I wanted to share with you for a while. One of the most funny things in my career is what I call: Squirrel Strikes Back
I named this as the first incident where a provider told that the reason of a fiber failure was a squirrel chewing the cable.
I popularized this with my friends in Systems Administration and SRE and when they suffer a Squirrel Attack incident, they forward it to me, for great joy.
I’m used to construction or gas, water, electricity, highways repair operations on the cities accidentally cutting fiber cables, thunders or truck accidents on the highway breaking the floor and cutting tubes and issues like that. I’ve been seeing that for around 25 years.
So the first time I saw a provider referring to a squirrel cutting the cables it was pretty hilarious. :)
In my funny mental picture: I could visually imagine a cable thrown in the middle of the forest, over trees, and a squirrel chewing it as it tastes like peanuts. :) or a shark cutting a Google’s or Facebook’s intercontinental cable thrown without any protection. ;)
The sense of humor and the good vibes, are two of the most important things in life.
As the company I was working for, Sanmina, has decided to move all the Software Development to Colorado, US, and closing the offices in Bishopstown, Cork, Ireland I found myself with the need to get a new laptop. At work I was using two Dell laptops, one very powerful and heavy equipped with an Intel Xeon processor and 32 GB of RAM. The other a lightweight one that I updated to 32 GB of RAM.
I had an accident around 8 months ago, that got my spine damaged, and so I cannot carry much weight.
My personal laptops at home, in Ireland are a 15″ with 16 GB of RAM, too heavy, and an Acer 11,6″ with 8GB of RAM and SSD (I upgraded it), but unfortunately the screen crashed. I still use it through the HDMI port. My main computer is a tower with a Core i7, 64GB of RAM and a Samsung NVMe SSD drive. And few Raspberrys Pi 4 and 3 :)
I was thinking about what ultra-lightweight laptop to buy, but I wanted to buy it in Barcelona, as I wanted a Catalan keyboard (the layout with the broken ç and accents). I tried by Amazon.es but I have problems to have shipped the Catalan keyboard layout laptops to my address in Ireland.
I was trying to find the best laptop for me.
While I was investigating I found out that none of the laptops in the market were convincing me.
The ones in around 1Kg, which was my initial target, were too big, and lack a proper full size HDMI port and Gigabit Ethernet. Honestly, some models get the HDMI or the Ethernet from an USB 3.1, through an adapter, or have mini-HDMI, many lack the Gigabit port, which is very annoying. Also most of the models come with 8GB of RAM only and were impossible to upgrade. I enrolled my best friend in my quest, in the research, and had the same conclusions.
I don’t want to have to carry adapters with me to just plug to a monitor or projector. I don’t even want to carry the power charger. I want a laptop that can work with me for a complete day, a full work session, without needing to recharge.
So while this investigation was going on, I decided to buy a cheap laptop with a good trade off of weight and cost, in order to be able to work on the coffee. I needed it for writing documents in Google Docs, creating microservices architectures, programming in Java and PHP, and writing articles in my blog. I also decided that this would be my only laptop with Windows, as honestly I missed playing Star Craft 2, and my attempts with Wine and Linux did not success.
Not also, for playing games :) , there are tools that are only available for Windows or for Mac Os X and Windows, like: POSTMAN, Kitematic for managing dockers visually, vSphere…
(Please note, as I reviewed the article I realized that POSTMAN is available for Linux too)
Please note: although I use mainly Linux everywhere (Ubuntu, CentOS, and RedHat mainly) and I contribute to Open Source projects, I do have Windows machines.
I created my Start up in 2004, and I still have Windows Servers, physical machines in a Data Center in Barcelona, and I still have VMs and Instances in Public Clouds with Windows Servers. Also I programmed some tools using Visual Studio and Visual Basic .NET, ASP.NET and C#, but when I needed to do this I found more convenient spawn an instance in Amazon or Azure and pay for its use.
When I created my Start up I offered my infrastructure as a way to get funding too, and I offered VMs with VMWare. I found that having my Mail Servers in VMs was much more convenient for Backups, cloning, to scale up, to avoid disruption and for Disaster and Recovery.
I wanted a cheap laptop that will not make feel bad if transporting it in a daily basis gets a hit and breaks, or that if it rains (and this happens more than often in Ireland) and it breaks is not super-hurtful, or even if it gets stolen. Yes, I’m from a big city, like is Barcelona, Catalonia, and thieves are a real problem. I travel, so I want a laptop decent enough that I can take to travel, and for going for a coffee, coding anything, and I feel comfortable enough that if something happens to it is not the end of the world.
Cork is not a big city, so the options were reduced. I found a laptop that meets my needs.
It is equipped with a Intel® Core™ i3-6006U (2 GHz, 3 MB cache, 2 cores) , a 500GB SATA HDD, and 4 GB of DDR4 RAM.
The information on HP webpage is really scarce, but checking other pages I was able to see that the motherboard has 2 memory banks, accepting a max of 16GB of RAM.
I saw that there was an slot, unclear if supporting NVMe SSD drives, but supporting M.2 SSD for sure.
So I bought in Amazon 2x8GB and a M.2 500GB drive.
Since I was 5 years old I’ve been upgrading and assembling by myself all the computers. And this is something that I want to keep doing. It keeps me sharp, knowing the new ports, CPUs, and motherboard architectures, and keeps me in contact with the Hardware. All my life I’ve thought that specializing Software Engineers and Systems Engineers, like if computers were something separate, is a mistake, so I push myself to stay up to date of the news in all the fields.
I removed the spinning 500 GB SATA HDD, cause it’s slow and it consumes a lot of energy. With the M.2 SSD the battery last forever.
The interesting part is how I cloned the drive from the Spinning HDD to the new M.2.
Open the computer (see pics below) and Insert the new drive M.2
Boot with an USB Linux Rescue distribution (to do that I had to enable Legacy Boot on BIOS and boot with the USB)
Use lsblk command to identify the HDD drive, it was easy as it was the one with partitions
dd from if=/dev/sda to of=/dev/sdb with status=progress to see live status and speed (around 70MB/s) and estimated time to complete.
Please note that the new drive should be bigger or at least have the same number of bytes to avoid problems with the last partition.
I removed the HDD drive, this reduces the weight of my laptop by 100 grams
Disable Legacy Boot, and boot the computer. Windows started perfectly :)
I found so few information about this model, that I wanted to share the pictures with the Community. Here are the pictures of the upgrade process.
Microsoft has released Windows 10, and with it the possibility to Download a Windows 10 Appliance to run under Virtual Box, VMWare player, HyperV (for windows), Parallels (Mac). Their idea is to allow you to test Microsoft Edge new browser in addition of being able to test the older browsers in older VM images.
I wanted to use Windows 10 to check compatibility with my messenger c-client.
Instructions are very precarious and they didn’t specify a minimum version, however if you use Virtual Box under Ubuntu 14.04, so Virtual Box 4.3.10, you’ll not be able to import the Appliance as you’ll get an error.
Update: Thanks to Razvan and Eric!, readers that reported that this also works for Mac OS 10.9.5. + Virtual Box 4.3.12 and VirtualBox 4.3.20 running under Windows 7 respectively.
I was looking to find a solution and found no solution on the Internet, so I decided to give a chance and try to fix it by myself.
The error is: ‘Windows10_64’ is not a valid Guest OS type. so obviously, the Windows10_64 is not on the list of the VirtualBox yet, it is a pretty new release. Microsoft could had shipped it with OS Type Windows 64 Other, or Windows 8 64 bits, but they did’t. I wondered if I could edit the image to trick it to appear as a recognized image.
I edited the file (MSEdge – Win10.ova) with Bless Hex Editor, an hexadecimal editor.
I looked for the String “Windows10_64” and found two occurrences.
I had to replace the string and leave it with exact number of bytes it has, so the same length (do not insert additional bytes). I searched for the list of supported OSes and found that “WindowsXP_64” would be a perfect match. I replaced that 10 for XP twice.
Then tried to import the Appliance and it worked.
I tried to run it like that, but it froze on the boot, with the new blue logo of windows.
I figured out that Windows XP would probably not be the best similar architecture, so I edited the config and I set Windows 8.1 (64 bit). I also increased the RAM to 4096 MB and set a 32 MB memory for the video card.
Then I just started the VM and everything worked.
Ok, a funny note: Just started, it installed me an update without asking ;)