This section highlights some important notes and issues with which you should familiarize yourself before beginning an SCO OpenServer Release 6 installation, especially if you are used to installing previous SCO OpenServer releases.
This guide does not discuss upgrading from a previous release of SCO OpenServer to SCO OpenServer Release 6. For upgrade information, see ``Installation and Licensing'' and the SCO OpenServer Migration and Upgrade Guide, available from http://www.sco.com/support/docs/openserver.
This guide does not cover how to perform an SCO OpenServer Release 6 installation over the network. For information, see ``Installing SCO OpenServer products over the network'' in the New Features and Notes online documentation topic.
Ideally, you should set your hardware's Real Time Clock (RTC) in the system BIOS. This is the best way to avoid license conflicts. However, there is a facility for changing the RTC during the installation.
The ``Date'' and ``Time'' fields are available from the Time zone selection screen. Enter the local date, using a format of MM/DD/YYYY. Enter the local time, with a format of HH:MM and using the 24-hour clock. For both fields, leading zeros are not required.
Note the following:
If you do not make a change to the ``Time'' field, the RTC is not adjusted when you exit the screen. If you do set a different time, the RTC is adjusted once you apply your changes and exit the screen. Therefore, it is important that you apply your changes promptly after resetting the ``Time'' field to avoid setting the RTC incorrectly.
If your time zone is not included in the list of time zones offered during the installation, you will need to create a custom time zone after the installation is complete. Enter the time zone that is closest to yours during the installation. After the installation, see ``Changing the system time zone'' for instructions.
If you want to manually configure partitions and filesystems during the installation, select the Customize partitions & filesystems option on the Disk Setup and Software Selection screen. See Step 6.a in the installation procedure for details.
Note that the root filesystem must have a minimum of 20 percent of the disk space unused or the installation will not proceed.
The installation includes the default memfs filesystem size for /tmp and /var/tmp in the default swap slice size. This is done even if /tmp and /var/tmp are set up as directories in the root filesystem, so that you have the option of reconfiguring these directories as memfs filesystems at a later time.
If you configure /tmp or /var/tmp as memfs filesystems during the installation and make these filesystems larger than the default settings, it may also be desirable to increase the size of the swap slice to accommodate the larger /tmp and /var/tmp filesystems.
A full installation of SCO OpenServer on 400 Mhz or slower systems may require several hours. To speed up the process, you can try removing some of the SCO OpenServer software components during the Software Selection phase of the installation. Some of the components that are installed by default but that you may not need include: Samba, the KDE desktop environment, Kerberos, MySQL, PostgreSQL, and the various components provided in the Value-added Services. See the Software Selection step in the installation procedure for help on de-selecting software.
On newer hardware, the VxFS filesystem typically performs better than HTFS. However, on slow hardware (under 1 Ghz), or hardware with small memory sizes, the ``lighter-weight'' HTFS filesystem may perform better. If you are interested in using HTFS as your root filesystem type, see ``Partitions and filesystems checklists'' and the Disk Setup steps in the installation procedure for details.
In both of these cases, defer network configuration during the installation (select Deferred in the ``Network card'' field). After the installation is complete, run the Network Configuration Manager to configure your network adapter.
See ``Configuring network connections'' for more information.