11.2 Installation of PowerHA SystemMirror for Linux This section shows how to install PowerHA for Linux.  11.2.1 Prerequisites Before you install the PowerHA SystemMirror on a Linux system, you must meet the following  prerequisites: The downloaded files contain the source package for the  ksh-93vu-18.1.src.rpm  files that  must be compiled to get the  ksh-93vu-18.1.ppc64le.rpm  files. To compile the files, run the  following command: If you want to validate that the prerequisites of the software are correct, you can validate them  as shown in Example 11-4. Example 11-4 Cloud: Tools (SLE_12_SP3) - Verifying that all prerequisites are met Chapter 11. PowerHA SystemMirror V7.2.2 for Linux  429 sles12-n1:/tmp/POWERHA7.2.2Linux/PHA7220Linux64 # ./installPHA --onlyprereq  checking :Prerequisites packages for PowerHA SystemMirror  Success: All prerequisites of PowerHA SystemMirror installed installPHA: No installation only prerequisite check was performed 11.2.2 Prerequisites check  – SUSE Linux Enterprise  Server12-SP3-Updates – SLE-SDK12-SP3-Updates – SLE-12-SP3-SAP-12.3-0 – IBM_Power_Tools – IBM-DLPAR-SDK – IBM-DLPAR-Adv-Toolchain – IBM-DLPAR-utils – IBM Power SDK Tools GLYPH<SM590000> For SUSE, it is a best practice to have the following repositories: – sg3_utils – lsscsi – bind-utils – perl-Pod-Parser – nfs-utils – bzip2 GLYPH<SM590000> The following packages are required in the RHEL system: GLYPH<SM590000> As a best practice, each distribution must a connection to the subscription service so that  it can download the packages, for example, satellite for Red Hat and smt for SUSE. The  repository location of each package can vary over time. – KSH93  ( ksh-93vu-18.1.ppc64le ) for SUSE Linux Enterprise Server  – KSH93  ( ksh-20120801 ) for RHEL.  GLYPH<SM590000> The following scripting package is required in each SUSE Linux Enterprise Server and  RHEL system: GLYPH<SM590000> You must have root authority to perform the installation. rpmbuild --rebuild ksh-93vu-259.1.src.rpm.