Three installation methods for aix

Preparations before installing the aix operating system in three ways: Installation of the AIX 5L operating system requires a certain degree of hardware environment. First, the server requires at least MB of memory and 2 GB of disk space. In addition, before installing the AIX 5L operating system, check whether the external device connection is correct and whether the status is normal. The most important thing is to prepare the installation media. to install the basic AIX 5L operating system, you must prepare at least 1 #, 2 #, and 3 # disks. Finally, we need to select the installation method of the AIX operating system as required. Three installation methods are available. The three installation methods of www.2cto.com AIX 5L can be divided into three types based on the extent to which the original data on the server is affected: new installation, upgrade installation, and retained installation. Www.2cto.com 1. new and Complete Overwrite Installation will Overwrite all data on the corresponding disk, which means that all data on it will be lost, including the previous operating system configuration information. In the following three cases, you can choose a new installation: a new server with no data on the physical disk. The original data on the physical disk is no longer needed and you want to use the new operating system to overwrite the original data. Re-plan the disk to reduce the rootvg capacity. 2. The Migration Installation upgrade and Installation occurs when the previous version is upgraded to the new version, for example, from AIX v5.2 to AIX v5.3. The original rootvg will be retained throughout the upgrade and installation process, and the installation process determines which software products need to be installed. In this way, most file systems except the/tmp file system are retained, including logical volumes and system configuration files on rootvg. 3. by default, Preservation Installation www.2cto.com overwrites the file systems used by/usr,/tmp,/var, And/systems, user data in these paths will be lost. These file systems will be deleted and then rebuilt. After the system is installed, the system environment is configured again. The/etc/preserve. list file stores the list of system files to be copied and saved in this installation mode. By default,/etc/filesystems is retained. Any file systems and files you want to keep can be written in this file so that they can be retained without being deleted in this installation method.