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<TITLE>Developer.com - Online Reference Library - 0672311739:RED HAT LINUX 2ND EDITION:Introduction to Red Hat Linux and UNIX</TITLE>
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<!-- ISBN=0672311739 //-->
<!-- TITLE=RED HAT LINUX 2ND EDITION //-->
<!-- AUTHOR=DAVID PITTS ET AL //-->
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<!-- PUBLICATION DATE=1998 //-->
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<A NAME="PAGENUM-6"><P>Page 6</P></A>
<P>At this point, the question is usually asked, "Okay, if Linux is so great, what is this Red
Hat version, and why should I get it?" Well, I am glad you asked. There are several reasons to
use Red Hat Linux:
</P>
<UL>
<LI> It is based on Linux 2.0x—The current version of Red Hat (4.2) is based upon
version 2.0x of the Linux kernel. This means that it is at the same low cost as
Linux—free! Anyone can use FTP to download Red Hat from the Internet and install it on
their system. (This also means that the entire list of Linux's attributes applies to the
Red Hat version.)
<LI> Red Hat Package Manager is included—For the same low cost (free), Red
Hat Package Manager (RPM) is included. This means that after you load Red Hat,
you'll never have to load it again. The RPM is a sophisticated tool that includes
intelligent file handling across package upgrades, shared file handling, documentation
searching support, and package installation via FTP. You can install, uninstall, query, verify,
and upgrade individual RPM packages.
<LI> Good, clean copies—Red Hat has a commitment to providing, as the company
puts it, "pristine sources." The RPM source packages include pristine, untouched
sources, as well as patches and a control file, which define the building and packaging
process. This enables you to work with other members of the Linux development
community easily and effectively by clearly separating and documenting the code that comes
from the Linux development community from any modifications that are required by
Red Hat.
<LI> Security—Red Hat leads the industry in providing the most up-to-date
security features. In addition, the company strives, and succeeds, at providing the
latest versions of software.
<LI> Documentation—Red Hat provides more than 250 pages of installation and
configuration information that can be downloaded via FTP or viewed from the Red Hat
site. Complete coverage of the Control Panel tools, including the network, user/group,
and printer tools, is included.
<LI> Standards—Red Hat
tracks both UNIX and Linux standards. Red Hat conforms
to the Linux filesystem standard (FSSTND).
<LI> Testing—Red Hat depends upon the open development model that Linus
started with. Today, there are thousands of people working around the world testing
applications and providing solutions for today's business and personal needs.
</UL>
<P>As you can see, Red Hat goes beyond the normal Linux system by providing tools,
documentation, and standardization.
</P>
<A NAME="PAGENUM-7"><P>Page 7</P></A>
<H3><A NAME="ch01_ 4">
Copyright and Warranty
</A></H3>
<P>Red Hat Linux is copyrighted under the GNU General Public
License. This section doesn't include the entire license, but it does highlight a few items. Basically, the license provides
three things:
</P>
<OL>
<LI> The original author retains the copyright.
<LI> Others can do with the software what they wish, including modifying it, basing
other programs on it, and redistributing or reselling it. The software can even be sold for
a profit. The source code must accompany the program as well.
<LI> The copyright cannot be restricted down the line. This means that if you sell
a product for one dollar, the person you sold it to could change it in any way (or
not even change it at all) and sell it to a second person for $10—or give it away at
no charge to a thousand people.
</OL>
<P>Why have such a unique licensing? The original authors of Linux software didn't intend
to make money from the software. It was intended to be freely available to everyone,
without warranty. That is correct; there is no warranty. Does this mean you are left out in the
cold when you have problems? Of course it doesn't. There are numerous resources, including
this book, newsgroups, and the Web to assist you. What it does do, though, is provide the
programmers the ability to release software at no cost without the fear of liability. Granted,
this lack of liability is a two-edged sword, but it is the simplest method for providing
freely available software.
</P>
<H3><A NAME="ch01_ 5">
Where to Get Red Hat Linux
</A></H3>
<P>Try looking on the CD-ROM that came with this book. Red Hat Linux is there. You can
also get Red Hat from the Internet by pointing your browser to
<a href="http://www.redhat.com/products/software.html.">http://www.redhat.com/products/software.html.</A> Here you will not only find Red Hat for each of the three supported
platforms (Intel, Alpha, and SPARC), but also upgrades, updates, answers to frequently asked
questions, mailing lists, and much, much more. You can call Red Hat at (888) RED-HAT1 and
order products as well.
</P>
<H3><A NAME="ch01_ 6">
System Requirements
</A></H3>
<P>Red Hat keeps a listing of the system requirements and supported hardware for the three
platforms—Intel, SPARC, and Alpha—that Linux will run on. Those lists are presented in
this section. As with anything, these lists will change. If the particular hardware that you have
is not listed, check Red Hat's Web page
<a href="http://www.redhat.com/support/docs/hardware.html)">(http://www.redhat.com/support/docs/hardware.html)</A> and see if it has been listed there.
</P>
<A NAME="PAGENUM-8"><P>Page 8</P></A>
<H4><A NAME="ch01_ 7">
System Requirements—Intel
</A></H4>
<P>According to Red Hat, these are the system requirements for running Red Hat Linux on
an Intel platform:
</P>
<UL>
<LI> Intel 386 or greater, through Pentium Pro
<LI> 40MB of hard drive space in character mode, or 100MB with X Window
<LI> 5MB of memory (although 8 to 16 is recommended)
<LI> Most video cards supported
<LI> CD-ROM drive
<LI> 3.5-inch disk drive
</UL>
<P>Plug and Play hardware is not, at the time of this writing, wholly supported. (There is
some level of PnP support with the isapnp software.) Most Plug and Play hardware has jumpers
or BIOS settings that will turn off the Plug and Play support. By turning off this support,
the equipment should work with Red Hat Linux. Some Plug and Play support equipment
doesn't have a way of physically turning off the Plug and Play option (such as the SoundBlaster
16 PnP). For these pieces of hardware to work with Linux, some sort of workaround must
be performed.
</P>
<H4><A NAME="ch01_ 8">
System Requirements—SPARC
</A></H4>
<P>Red Hat Linux/SPARC is known to function on the following hardware:
</P>
<UL>
<LI> sun4c architecture machines (IPC, SS1, and so on)
<LI> sun4m architecture machines (Classic, SS5, SS10, and so on)
<LI> bwtwo, cg3, cg6, TCX frame buffers (24 bit on the TCX)
<LI> cg14 frame buffer (in cg3 mode)
<LI> SCSI and Ethernet on all of the preceding
<LI> Type 4 and type 5 keyboards and mice
<LI> External SCSI drives
<LI> CD-ROM drives (external and internal)
<LI> SCSI/Ether SBUS expansion cards
<LI> Any original equipment Sun monitor for the listed frame buffers
</UL>
<H4><A NAME="ch01_ 9">
System Requirements—Alpha
</A></H4>
<P>Red Hat Linux/Alpha supports a variety of hardware based on the Alpha processor and the
PCI bus. Platforms on which this release is known to work include the following:
</P>
<UL>
<LI> AlphaPC64 (Cabriolet, Aspen Telluride)
<LI> AxpPCI33 (No name)
</UL>
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