An 8-Year Old with 8 Computers

Yesterday I talked with one of the kids in my neighborhood who is about 8 years old. He talked about how he had 8 different computers. Naturally I asked how he came to be the proud owner of so many computers. His dad answered that the local thrift store, Savers, sells used computers for around $5 and an amazing number of them actually work. That made sense and for a kid totally interested in computers, he probably loves playing with them as a hobby.

My next question amounted to what he does with all of them. He responded that he installs different operating systems. This got my mind wondering. While I imagined he played with Microsoft Windows, I wondered if he knew about the many other operating systems available for standard computers. I followed up with which is is favorite. He surprised me by answering MacOS.

While you can install MacOS on some Intel-based computers, it requires very specific hardware and I asked about that. His father responded that he has played with Hackintosh but it didn't sound very successful. That implies that you can find Mac hardware at Savers which is what is required when installing MacOS. I may have to go see if I can find a decent computer for $5.

Next I asked about Linux as that is an obvious choice for older Intel-based computers. The young man mentioned that his favorite flavor is Ubuntu and it impressed me. There are quite a few variants but Ubuntu is my current favorite flavor of Linux.

I remember being young like that and having a huge interest in computers. My dad did too and we actually had a large computer in our house. Back then it looked like 3 refrigerators and 2 dishwashers next to each other. It had a total of 256 kilobytes of memory and 20 megabytes of hard disk space. Calculators have more memory and storage than that now.

It is always interesting to see young people interested in computers and my neighbor surprised me. I enjoyed talking with the little guy and wish him the best of luck as he learns about this magnificent technology. My hope is that he continues with the hobby as it will serve him well later in life.

Which Flavor of Linux

This week I have been working from home and been doing some playing around with machine learning (ML) in Python. My home Linux box is using an old version of Fedora Core while my machine at work uses Ubuntu Linux. I am having problems getting Python updates to work correctly because some of my system libraries are so old. It is time to update my Linux and I am wondering which version to select.

I started using Red Hat Linux a long time ago. I don't feel the need to pay for Linux as I don't use it as a production server and so I have been running Fedora Core, which is based on Red Hat. If I want to continue using a Red Hat flavor of Linux, I could also install CentOS. So should I stay with Fedora Core or change to CentOS?

As mentioned, my machine at work uses Ubuntu which is based on the Debian distribution of Linux. I like it and it stays updated fairly easily. There are several other options as well but most of the world has settled on Debian or Red Hat. Suse used to be an option but Novell did a pretty good job of killing it in the early 2000's.

So what is the difference between them all? Mostly it has to do with system administration. PC users don't really want to do a lot of system administration work but they do like to install new versions of software. Red Hat uses "yum" to install software while Debian uses "apt-get". The programs are very similar. I have never had a problem finding updates for either flavor of Linux.

One problem I have noticed with Fedora Core is they are constantly changing versions. You may be on version 22 only to have version 23 come out a few months later. Updating your operating system can be a bit of a time sync as you have to make backup copies of your files and then spend hours making sure everything got moved to the same version without any problems. Ubuntu doesn't have that problem and so I think I will make that change over the Christmas break when I have more time. Until then I will have to remote login to my machine at work when running through my ML exercises. You may disagree and I would love to hear why. Feel free to send me a comment.

Finally Fedora Core 18 Is Usable

A few months ago I decided to update the Linux version on the desktop computer in my home office. I used it as a chance to decide if I wanted to stick with Fedora or move to Ubuntu. We are moving from CentOS to Ubuntu at work and so I wanted to start with Fedora just to be able to compare and contrast multiple flavors of Linux.

Unfortunately the upgrade from Fedora Core 10 to Fedora Core 18 was not painless. There was the problem with importing my old e-mail that I was able to figure out. The worst problem appeared about a week after the upgrade. For some reason, my Firefox browser kept crashing. I thought I could just download Google's Chrome, but that didn't even load. Previously I had been running the 32-bit version of Linux and upgraded to the 64-bit version. I figured there was some library mismatch in the 64-bit versions of the software and that by constantly sending crash reports to the developers, it would eventually get fixed. In the mean time, I just used the browser on my laptop.

I work in the Bay area during the week and fly back to Utah on weekends. Every Saturday, I would patiently update my system only to discover the bug with my browser hadn't been fixed. One perk I have with my job is that I get to work from home one week per month and this was that week. On Monday, I gave the old update a shot and cranked up the browser. I let it sit there and several minutes later the browser was still running. Next I cranked up Pandora and filled my office with music. It has been running all week with no crashes. I have yet to give Chrome a try, but I don't like Chrome and avoid it if I can.

Running the latest versions of software can be a little dangerous sometimes, as I was reminded. However you can send in the bug and crash reports. Eventually things will get fixed and the updated software becomes the stable version. Just be sure you have a second computer to use in case things don't work.

Time To Upgrade Linux

I found a new program to help me program my VHF ham radio and tried to install it on my Linux system at home this week. The flavor of Linux I like to run at home is Fedora and I was still on Fedora Core 10. The latest version right now is Fedora 18. That represents a significant difference. When I tried to install my ham radio software called Chirp, I needed to upgrade a bunch of different libraries. Instead of just upgrading the libraries, I decided to update the whole operating system.

Right now there are two major releases of Linux that most people consider: Fedora or Ubuntu. We are moving to Ubuntu at work and so I will be updating my computer there from CentOS, which is very similar to Fedora. As I will have computer running Ubuntu, I figured I would keep my home desktop on Fedora. That way I can compare both systems and find out for myself which flavor of Linux is really better.

Before deciding on the upgrade, I researched both Linux distributions thoroughly. You had the usual religious battles between both groups combined with a bunch of "impartial" comparisons claiming it is a tie between the two. We will see how much truth there is to that.

Unfortunately the Linux upgrade did not go as smoothly as I had planned. I made sure to back up all of my data and directories. Then I backed up my e-mail. When I tried to restore my e-mail, none of my messages appeared on the new system. Fortunately there is a way to import raw mail files into my e-mail program (Evolution) and so I just had to restore each e-mail folder one at a time. It was fairly painless once I figured out how to do it. Now it is just a matter of loading up all of the programs I normally use.

One nice thing about upgrading Linux versions is that I can now access my Windows partition, not that I have missed it. When I installed Fedora Core 10, I saved a part of my hard disk for Windows, but was never able to access it. Now it has started working again. So if I need it, it is available. I sure hope I don't need it though. I hate Windows.

Linux Flavors

Yesterday my oldest son came into my office and started telling me how his day was. The topic of Red Hat Linux came up and he expressed a desire to have a copy. This started a whole discussion on the different flavors of Linux.

When I first installed Linux on one of my office machines over ten years ago, I went down to a local book store and bought a book about Linux. In the back of the book was a CD that came with a copy of the operating system. It was Slackware Linux and seemed to work just fine. I played around a bit but couldn't get the graphical user interface (GUI) working with my hardware. So I went to a computer store and bought a copy of Red Hat Linux. I think it was version 2. I was able to get the X windowing environment (Linux's GUI) running. Since then I have always been a fan of Red Hat Linux.

I purchased several more copies of Red Hat Linux before they decided to concentrate on becoming a server-centric operating system provider. Most of the work I do is for other people and they have their own servers. That means I don't really need a server-specific version of Linux. Not to worry, Red Hat created Fedora Core for people like me. It is freely downloadable from the Internet and so I don't have to get in my car and drive to the local computer store to get it.

About a year ago, one of my clients asked me to put together a staging server at my office. A staging server is used to test changes in software before they are moved into the production environment. This is very helpful if you want to upgrade your database software but need to ensure it will work before you make the change. Simply upgrade the staging server and run through a bunch of tests. Once you are satisfied the upgrade won't break anything, you can roll out the new database software to the production system.

My client is barely above water financially and so I wanted to save them a bit of money. The production servers run Red Hat Enterprise Linux Server but that costs about $2,500 per server (if I remember correctly . . . I just tried to look it up but you now have to purchase it from a reseller . . . what a pain). Since I really don't care about technical support for the staging server, I decided to load it with CentOS. CentOS basically looks like Red Hat Enterprise Linux but is free. That means if there are any problems you have to figure them out yourself. I wouldn't recommend it for a production environment unless you have one or two Linux experts on staff who are used to figuring things out for themselves. So far it has worked perfectly for my client's staging server. I told my son that if he really wants to give Red Hat Enterprise Linux a try, he should just use CentOS.

There are many different flavors of Linux and these only represent a handful of distributions available. I have a good friend who works for Cannonical who are the guys behind Ubuntu Linux. He keeps trying to get me to switch to his distribution. I am reluctant to do so because I am so familiar with what I am already using. Oh well, I would probably make a bad customer anyways because I try to avoid paying for anything.