Before You Install Checklist
Do you have questions that remain
unanswered? See the resources
Your System Can Run IRIX 6.5.27
See the Minimum
Requirements page to confirm that IRIX 6.5.27 is
supported on your system.
Because IRIX 6.5.x (that
is, 6.5.1, 6.5.2, and so on) releases are cumulative, you do not need
to upgrade to the previous IRIX 6.5.x release in
order to upgrade to a new one.
Similarly, if you are running a
pre-6.5 version of IRIX you can install the IRIX 6.5 and 6.5.x software
at the same time. For example, by following the instructions in the IRIX
6.5 Installation Instructions CD booklet, you can
upgrade directly from IRIX 6.2 to 6.5.27.
Important Caveats That Affect Your Installation
Review the special Caveats to Read Before You
Upgrade. These caveats may include key details that
significantly affect your installation process. (You want to print the
entire page, because it also contains Caveats to Read
After You Upgrade. This way, you will not have to
look them up after installation.)
Beginning with the IRIX 6.5.4
release, a New_IRIX_Info icon can be found on
the WhatsNew page in the Icon Catalog. When you click on this icon, a
web page opens and provides descriptions of the key new features and
changes of this IRIX release.
After you install IRIX, users
can access the New_IRIX_Info icon from their
desktops through the following pulldown menu:
Toolchest > Find > Icon
Catalog > WhatsNew
The information displayed is
the same Key New Features and Changes information included in this
Start Here (see step 6 below).
Note: The IRIX Welcome product is located
on the Installation Tools and Overlays CDs (either CD 1 of 4 or 2 of 4,
depending on which stream you are installing) in the /dist
directory; it is installed by default. The IRIX Welcome product must
be installed in order for the New_IRIX_Info icon
to be included in the WhatsNew page of the Icon Catalog.
The Applications You Rely On Are Supported
If you rely on any
applications that are not bundled with this release, do not upgrade
until you can confirm that they are supported on the IRIX 6.5 release
family and/or until you have access to the IRIX 6.5-compatible version
of such applications. Check the Software Product Knowledge Database at
the Supportfolio Online site (
to help you with IRIX 6.5 compatibility questions.
The best way to confirm
application compatibility is to either check the SPK database if you
received the application from SGI, or check with the third-party
product vendor if you received the application from the product vendor.
A few examples are given
in the Caveats section.
Create A Full
If you are upgrading from a
pre-6.5 version of IRIX, then create a full system backup before
upgrading to a new operating system. If, for any reason, you need to
return to a previous operating system after the upgrade, you can use a
full system backup tape or filesystem to do so. If you are upgrading
from IRIX 6.5 or 6.5.x to IRIX 6.5.27, a full system backup is not
required, but we encourage you to back up your system fully during any
operating system installation or upgrade. Instructions for backing up
and restoring workstations can be found in the online Personal
System Administration Guide. For servers, use the
backup(1) and restore(1) commands; refer to the online book IRIX
Admin: Backup, Security, and Accounting for
details. If you don't know where to find these books, see the General Documentation
(Optional) Read About The CDs You Will Use
Are you upgrading from IRIX
6.5 or 6.5.x to IRIX 6.5.27?
Then you only need to install
the IRIX 6.5.27
CDs, unless you want to switch release streams (in which case you will
also need the base IRIX 6.5 CDs). (To switch release streams, see the IRIX
6.5 Installation Instructions CD booklet.)
Are you upgrading a system
running a pre-6.5 version of IRIX, or installing onto a clean disk?
If so, you need to install both
the IRIX 6.5 and 6.5.27 CDs (except
for the IRIX 6.5 Installation Tools CD).
For a summary of the contents of
the CDs, see the CD
For a full listing of the contents of
the IRIX 6.5.27 and 6.5 CDs, see the CD Contents page.
(Optional) Check For Key Changes In This
To find out about key changes
in this upgrade, check the Key
New Features and Changes list. For specific details
about changes in each individual software product, see the product release notes.
(Optional) Request A License Password
If you need a license password
for any of the optional applications that require a license password,
you can refer to the Software License site (http://www.sgi.com/support/licensing/)
Register Your System with SGI
Register your system with SGI to protect your investment and
enable you to receive important updates. To register your
system go to the online system registration page at