3.1.1 Preparations

Time required
It takes approximately 15 minutes to install this software.
Kernel header
Before installing this software, it is necessary to install the kernel header that supports OS of the system. Check if the kernel header is installed on the system by executing the following command:
```
Red Hat Enterprise Linux 5 (for x86)
```
```
# rpm -qi kernel-PAE-devel <Return>
```
```
Red Hat Enterprise Linux 5 (for Intel64)
Red Hat Enterprise Linux 6 (for x86)
Red Hat Enterprise Linux 6 (for Intel64)
```
```
# rpm -qi kernel-devel <Return>
```
If the command encounters an error, or the kernel source version different than the system OS, install the kernel source according to the OS document.

System environment check

To install Web-Based Admin View, it is necessary to modify the IP address of the admin LAN for Web-Based Admin View and its corresponding host name, and the host name corresponding to "127.0.0.1"(for IPv4) and "::1"(for IPv6).

# su <Return>
Password:password <Return>

Delete the host name allocated to "127.0.0.1"(for IPv4) and "::1"(for IPv6) using vi(1) and allocate it to the IP address of the admin LAN.

Before change)

# cat /etc/hosts <Return>
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1   host-name localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         host-name localhost localhost.localdomain localhost6 localhost6.localdomain6

After change)

# cat /etc/hosts <Return>
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
IP-Address  host-name

Package check

Check if the package is installed on the system by executing the following command:
```
# rpm -qi compat-libstdc++-33 <Return>
```
If the command encounters an error, install the package from CD-ROM of the OS.
Compiler(gcc) installation
Before installing this software, check that the gcc package is installed and that the version of the package is the same as the version of gcc that compiles the kernel.
Check the version of the gcc package by executing the following command:
```
# gcc --version <Return>
gcc (GCC) 4.4.4 20100726 (Red Hat 4.4.4-13)
```
Check the version of gcc that compiles the running kernel by executing the following command:
```
# cat /proc/version <Return>
Linux version 2.6.32-71.el6.x86_64 (mockbuild@x86-007.build.bos.
redhat.com) (gcc version 4.4.4 20100726 (Red Hat 4.4.4-13) (GCC) ) 
#1 SMP Wed Sep 1 01:33:01 EDT 2010
```
The first and second numbers of the version (e.g. "4.4" for "4.4.4") must be the same between both gcc.

pam-devel installation

Check if the package is installed on the system by executing the following command:

Red Hat Enterprise Linux 5 (for x86)
Red Hat Enterprise Linux 6 (for x86)

# rpm -qf /usr/lib/libpam.so <Return>

Red Hat Enterprise Linux 5 (for Intel64)
Red Hat Enterprise Linux 6 (for Intel64)

# rpm -qf /usr/lib64/libpam.so <Return>

If the command encounters an error, install the pam-devel package shown in the following table from CD-ROM of the OS.

OS	package to install
Red Hat Enterprise Linux 5 (for x86)	pam-devel-XX.i386.rpm
Red Hat Enterprise Linux 5 (for Intel64)	pam-devel-XX.x86_64.rpm
Red Hat Enterprise Linux 6 (for x86)	pam-devel-XX.i686.rpm
Red Hat Enterprise Linux 6 (for Intel64)	pam-devel-XX.x86_64.rpm

Patch download
Before installing this software, download the latest PRIMECLUSTER patch by UpdateSite format and update information file from Updatesite.