Sun Microsystems SunPCi 1.1 Guide D'installation page 7

Your workstation will return a line of text similar to the following:
SunOS myworkstn 5.6 Generic sun4u sparc SUNW, Ultra-30
Note the SunOS version number that appears. For example, SunOS 5.5.1 is
Solaris 2.5.1 and SunOS 5.6 is Solaris 2.6.
These patches are located in the /cdrom/cdrom0/Patches directory on your
SunPCi CD-ROM.
To install the patches, insert the SunPCi CD-ROM in your workstation's CD-ROM
drive and follow these steps:
1. Become superuser on your system.
Enter the following command:
% su
Enter the root password. If you do not know the password, see your system
administrator.
2. Type the following command to go to the /Patches directory:
# cd /cdrom/cdrom0/Patches
This directory contains three subdirectories, one for each of the operating system
patches. The following list shows the patch directories for each operating system.
Solaris 7: use directory 106541-01
Solaris 2.6: use directory 105486-04
Solaris 2.5.1: use directory 104560-05
3. Use the cd command to go to the directory for the patch that corresponds to your
operating system.
For example, if you are running Solaris 2.7, type this command:
# cd 106541-01
SunPCi Hardware and Software Installation en-3