Portal Express, Version 6.0
Operating systems: i5/OS, Linux, Windows
Preparing your Linux machine
This section includes information on setting up your Linux operating system prior to the WebSphere Portal Express installation. Other components might require additional steps; see the product documentation for the specific components that you want to install for information.
Before you install WebSphere Portal Express, review the following information to ensure that your machine is ready for installation.
- Planning Linux disk space
- Setting File Descriptor Limit
- Planning for using the installation program
- Checking your network setup
Plan Linux disk space
If for any reason you need to change the file system size, the Linux ext2 file system (which is used by default) does not allow you to change it. Therefore, you should carefully plan in advance for the size of your file system in order to avoid related problems. The following disk space is required for each directory:
- /: 1.5 GB or more (root directory)
- /opt: 2.5 GB or more. The default directory to install WebSphere Portal Express on Linux is /opt, which you could change to any directory you like later. By default, /opt is under / file system in default. If you choose to install WebSphere Portal Express under /usr, 3.5 GB or more is recommended.
- /home: 500 MB or more (home directory)
- /tmp Run the following command to ensure that you have appropriate permissions in the /tmp directory: ls -ld /tmp. The result should look like the following: drwxrwxrwt 34 root root 4096 date_stamp time_stamp/tmp.
Set File Descriptor Limit
Prior to installing WebSphere Portal Express, set the file descriptor limit to 10240. For example: ulimit -n 10240 If this is not done, the WebSphere Portal Express installation may fail.
Plan for using the installation program
If you want to use the graphical user interface that is provided by the installation program, install and configure X server on Linux (for example X-Windows or GNOME). The installation program also supports silent installation and console mode; X server is not required in these cases.
Checking your network setup
Proper network configuration is essential when installing WebSphere Portal Express. Verify the following network setup requirements before installation:Fully qualified host name: WebSphere Portal Express also requires the use of a fully qualified host name, which is typically the host name of the server, along with its fully qualified domain name. To be sure that this is configured correctly, you can check with a simple ping before you start installation. For example, you could enter ping yourserver.yourcompany.com at a command prompt.
Set ulimit
Set ulimit -n 10240 before installing.