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In the spirit of the Linux community, Red Hat Software has made available
their Linux distributions for several platforms on their FTP site. These
are all available from the top distribution directory.
The toplevel directory for RedHat Linux release 6.1 (
pub/redhat/redhat-6.1) contains distributions for the different
platforms, and a directory containing updates and corrections to program
packages that have been published since the release.
SRPMS/ alpha/ i386/ sparc/ iso/
In this document, we use the i386 distribution as an example. The
procedure given in this document is likely to work on all platforms
supported by Red Hat (Alpha, SPARC, ppc, etc.), but we have only tested it
on the i386 platform (the authors would be most interested in additional
information). The root of the i386 directory looks like this:
-rw-r--r-- 1 root root 18391 Mar 19 1999 COPYING
-rw-r--r-- 1 root root 3409 Sep 26 01:12 README
-rw-r--r-- 1 root root 1908 Sep 25 18:20 RPM-GPG-KEY
drwxr-xr-x 5 root root 4096 Oct 26 09:01 RedHat/
-rwxr-xr-x 1 root root 538 Sep 26 04:16 autorun
-rwxr--r-- 1 root root 2048 Sep 30 20:00 boot.cat
drwxr-xr-x 7 root root 4096 Oct 26 09:01 doc/
drwxr-xr-x 6 root root 4096 Oct 26 09:01 dosutils/
drwxr-xr-x 2 root root 4096 Oct 26 09:01 images/
-rw-r--r-- 1 root root 391123 Jan 5 09:05 ls-lR
-rw-r--r-- 1 root root 51786 Jan 5 09:05 ls-lR.gz
drwxr-xr-x 4 root root 4096 Oct 26 09:01 misc/
The doc directory contains an abundance of information. Most
importantly, the RedHat installation manual can be found in HTML format in
the directory
doc/rhmanual/manual/. Next, there is a number of FAQs, and finally,
the entire collection of HOWTOs and mini-HOWTOs.
The images directory contains boot floppy images that must be copied
to a diskette. In the most recent distribution (6.1), there are two disk
images available. The boot image is called boot.img, which is required
when installation is performed directly from a CD-ROM. If installation
from a local hard disk, NFS mounted disk or FTP is required, the
supplementary disk image supp.img might be needed. See section
Installing from the CD and references therein for
details.
The misc directory contains source and executables of a number of
programs needed for the installation. Finally, the iso directory
contains iso9660 images just like the one you we about to make.
The most important part of the directory tree is rooted in the RedHat
directory:
drwxr-xr-x 2 root root 28672 Oct 26 09:01 RPMS
drwxr-xr-x 2 root root 4096 Oct 26 09:01 base
-rw-r--r-- 1 root root 0 Jan 19 1999 i386
drwxr-xr-x 6 root root 4096 Oct 26 09:01 instimage
The RPMS directory contains the major part of the Red Hat distribution
consisting of a set of RPM (Redhat Package Manager) files. An RPM package
typically contains binary executables, along with relevant configuration
files and documentation. See the section
RPM packages for more information.
The base directory holds different book-keeping files needed during
the installation process, e.g. the comps file, which defines the
components (groups of packages) used during the "Choose packages to
install" phase. See section
The comps file
for more information on this file, and how to use it. Another important
file in the base directory is the hdlist file containing most of
the header fields from all the RPMs in the RPMS directory.
This means that all the interdependencies among RPM packages can be
determined just by reading hdlist without having to read all the
RPM packages which is quite convenient especially during FTP installs.
Another use of hdlist is mapping package names to file name,
eg. perl to perl-5.004-6.i386.rpm. This means that if you
want to incorporate updates from RedHat (see section
Incorporating the updates) or add your own
packages to the RPMS directory, you need to update hdlist.
This is descriped later in
Generating a new hdlist file.
The instimage directory contains a bare-bones live file system with a
number of programs and shared libraries needed during the installation
procedure.
The /pub/redhat/updates directory has updates for all releases of
RedHat's distribution since version 3.0.3. This is the place to find
software packages that have been uppdated for some reason or other. You
should especially be aware of security updates. These are publicised on
RedHat's errata page whenever a fix is available. The most important
files found in the updates directory are:
drwxrwxr-x 8 ftpuser ftpusers 8192 Aug 18 08:05 5.1/
drwxrwxr-x 9 ftpuser ftpusers 8192 Sep 18 08:07 5.2/
drwxrwxr-x 9 ftpuser ftpusers 8192 Jan 7 23:09 6.0/
drwxrwxr-x 9 ftpuser ftpusers 8192 Jan 7 23:09 6.1/
lrwxrwxrwx 1 ftpuser ftpusers 3 Aug 25 13:14 current -> 6.1/
The structure of each of these directories is similar to
that described in section
The top level directory
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