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Issue 2: Linux Distributions
Posted on Friday, April 01, 1994 by LJ Staff
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Miscellaneous When people first start looking at Linux there are some hurdles. The first one is understanding that Linux is free. Because so much software is licensed, the idea that you can get a copy and legally give it to all your friends and use it on all your computers seems to take some getting used to.

When people first start looking at Linux there are some hurdles. The first one is understanding that Linux is free. Because so much software is licensed, the idea that you can get a copy and legally give it to all your friends and use it on all your computers seems to take some getting used to.

Once people get over that hurdle, the next problem seems to be "which distribution should I get?". This is because there isn't just one Linux--a concept that is familiar to many Unix system users but fairly foreign to the MS-DOS or MS-Windows user. This article addresses that question. Hopefully the third question, where do I get it, can be answered by our advertisers.

Historically, the word Linux had a somewhat different meaning. It was really just the operating system kernel. People would then collect various pieces of software (a compiler from one place, login code from another and so on) and put together their own system. The problem is that this took a lot of time, and as the amount of support software available grew the choices grew as well.

The solution was for someone to make a distribution, a collection of software consisting of the kernel and all the support programs that a user would need. What happened is that more than one "someone" did this because of differing needs. And each of these distributions was called "Linux".

What's wrong with calling them Linux? Nothing, if we can avoid the confusion that it initially introduces. The confusion comes from two areas:

  • Different distributions contain different programs.
  • Linux is really the kernel. When we lump all the other programs in and still call the contents Linux we are ignoring the work of others including FSF for the C compiler and most of the utilities, and the University of California at Berkeley for Ingres and Postgres.

I am sure the label Linux will stick, but I do think it is important that we recognize that there's a lot more to what we get in a distribution than code written by those who would be considered Linux developers.

Now, on to distributions. This isn't intended to be a complete list, just a quick look for beginners. I encourage anyone with a different distribution that they consider important to write to us and tell us about it.

The first complete Linux distribution was SLS. Although the most recent release is sorely out of date today, I mention it for historical reasons. Many people who are using Linux started with this distribution, which was produced by Peter MacDonald. It also offered the basis for other distributions like Slackware.

MCC

Developed at the University of Manchester, MCC was designed to be quickly installed by anyone. It has excellent documentation and is both compact and very stable. MCC was designed to be installed on 386 systems in a lab used by computer science students. It includes networking via ethernet and a complete development system but lacks such things as print spooling, uucp and X windows. Because of its excellent documentation and compact size (easily fits in 30MB of hard disk space; distribution is 8 floppies) it is a great place to start—particularly if you have little or no Unix experience.

At the time of this writing (February, 1994), the MCC distribution is based on a rather old kernel. It is, however, very stable and well tested.

Slackware

Slackware evolved from the ideas behind SLS, a complete Linux system with an installation system that makes it possible to pick and choose what you want. It isn't perfect but it is very current, well supported and very reliable. The imperfections are generally in terms of a missing link or wrong permission. Here at Linux Journal we have two systems running Slackware, and the only serious problem we encountered was with smail. After talking to other Unix users we determined that the problem was actually an smail bug, not a Linux bug. We replaced smail with sendmail+IDA and all seems to be fine now. Some distributors (such as Trans-Ameritech) are distributing Slackware on CD-ROM.

Yggdrasil

Available only on CD-ROM, this is a very popular distribution. Current and complete, it offers a quick way to get a working system up and running. It includes X-windows (in fact, it requires you to load X to do system configuration) and a pretty amazing set of tools. Like most of the up-to-date distributions, it has a few bugs. It is, however, a great choice for someone who wants to get a working Linux system with X up and running quickly. I also feel it is well worth the $50 for the amount of source code you get in a compact form. We have one Linux system in the office running Yggdrasil.

Debian

This is a new distribution currently in beta test. I have not run this but am on the developer's list. It seems to be progressing rapidly toward a professional-quality distribution. It also appears that Debian will be adopted as the official Linux distribution of the Free Software Foundation. In structure Debian is much like Slackware, but the level of effort going into it is going to make it a very clean product.

Linux/PRO

This is a professional-quality Linux distribution. It is currently being distributed in Holland with U.S. distribution planned in the near future. Again, I have not worked with this distribution, but it is being developed by a new company, ARIS, as a commercial-quality product.

Which one should you get?

That depends on your needs and what equipment you have. If you have a CD-ROM drive, buying Linux on a CD is a good choice. A CD can hold over 600MB of files, and most of the CD distributions have hundreds of megabytes on them. The low price tag (less than $50) makes a CD an inexpensive way to get the information.

If you don't have a CD-ROM drive, but you do have Internet access, downloading the files from one of the ftp sites is an alternative. Look for the files on one of the following sites or on their mirrors:

see table below

If you don't have Internet access, try looking around on local bulletin board systems. Hundreds of them offer Linux distributions. Or contact your local Unix (or Linux) user's group. Many of them know people who will make a copy of one of the distributions for you if you supply the disks.

If all else fails, there are people who copy distributions to floppy disks and sell them. Costs are generally around $2/disk.

There is a manual called Linux Installation and Getting Started, written by Matt Welsh, that I highly recommend (see the review in LJ #1, page 10). This runs about 200 pages and offers answers to many of the common questions about getting your Linux system up and running. It is available for ftp access on many of the Internet sites that have Linux distributions. It's also available on paper, comb bound from SSC.

In conclusion, if you have been thinking about Linux, take the plunge. It works. It's a real operating system, useful both to help you learn about Unix-like systems and to use for real projects.

Linux FTP Sites


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