WPS: Pre-install Tasks for Linux

Follow the next steps carefully for install IBM Websphere Portal Server 6.1 for Linux

Hardware
Have at least 2 GB of RAM for installation

In my installation, i had problems when my Virtual Machine (VM) has only 1 GB of memory, with more memory the install happens without problems. In the installation process the Wizard start and stop WAS/WPS many times, so enough memory is a pre-req.

Disk Planning
* /: 1.5 GB or more (root directory) * /opt: 4 GB or more. Default install directory for WebSphere Portal on Linux * /home: 500 MB or more * /tmp Check the permission for the tmp directory whith the following command: ls -ld /tmp. Result must be this: drwxrwxrwt 34 root root 4096 date_stamp time_stamp/tmp.

Installing requireds RPM packages
Install the following RPM packages in you Linux OS:

- compat-libstdc++-33 - compat-libstdc++-296 - libXp

if you are using yum, make as follow:

> yum -y install compat-libstdc++-33 compat-libstdc++-296 libXp

Setting the hostname as FQDN
Check that the hostname is full hostname (Full Qualified Domain Name).

Example: wps1.mycompany.com

Another Example:

> cat /etc/hosts 127.0.0.1             localhost.localdomain            localhost 192.168.1.15          wps1.mycompany.com               wps1

Change the open files limits
Edit the file /etc/security/limits.conf and add the following entries

root               soft         nofile           10240 root               hard         nofile           10240

Save and close the file, logoff from the system, and logon again

Check the change with the following command

core file size         (blocks, -c) 0 data seg size          (kbytes, -d) unlimited scheduling priority            (-e) 0 file size              (blocks, -f) unlimited pending signals                (-i) 16308 max locked memory      (kbytes, -l) 32 max memory size        (kbytes, -m) 1756780 open files                     (-n) 10240 pipe size           (512 bytes, -p) 8 POSIX message queues    (bytes, -q) 819200 real-time priority             (-r) 0 stack size             (kbytes, -s) 8192 cpu time              (seconds, -t) unlimited max user processes             (-u) 16308 virtual memory         (kbytes, -v) 3337040 file locks                     (-x) unlimited
 * 1) ulimit -a

(Optional) Updating the /etc/issue file - Only for CentOS
InstallShield checks for Operation System installed to know for it's compatibility or not. We can avoid/mask this check change the /etc/issue file. So the same thinks this OS is a trully Red Hat Enterprise

The original is the following one:

CentOS release 5 (Final) Kernel \r on an \m

Update to:

Red Hat Enterprise Linux ES release 4 (Nahant Update 1) Kernel \r on an \m Logoff and Logon again.