213 lines
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213 lines
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<meta name="DC.Title" content="Starting the installation from i5/OS" />
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<meta name="abstract" content="This topic describes the installation of Linux initiated from an i5/OS command line." />
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<title>Starting the installation from i5/OS</title>
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<body id="rzau9startos400install"><a name="rzau9startos400install"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Starting the installation from <span class="keyword">i5/OS</span></h1>
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<div><p>This topic describes the installation of Linux<sup>®</sup> initiated
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from an <span class="keyword">i5/OS™</span> command line.</p>
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<div class="section"><p>The installation of an integrated Linux server is initiated from an <span class="keyword">i5/OS</span> command line using the Install
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LINUX Server (<span class="cmdname">INSLNXSVR</span>) command. The installation is completed
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from the Linux console.</p>
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<p>The
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Linux server installation occurs in two steps. During the first step, the
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INSLNXSVR command creates all necessary objects to manage the server. This
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includes a network server description, message queue, line descriptions, storage
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spaces and TCP/IP interfaces.</p>
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<p>During the second step of the Linux server
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installation, the Integrated xSeries server is varied on to start the Linux
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server installation. Further Linux server installation is performed using
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the file server console and the normal Linux server install process.</p>
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<p>When
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INSLNXSVR completes normally, the Linux server is left in a varied on state.</p>
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<p><strong>Restrictions:</strong></p>
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<p>•
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You must have input/output system configuration (*IOSYSCFG), all object (*ALLOBJ)
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and job control (*JOBCTL) special authorities to run this command. </p>
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<p>•
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Existing file servers that use the same specified Integrated xSeries hardware
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resource must not be varied on.</p>
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<p>• The file server will be varied off
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and varied back on during the second step of the install as Linux server installs
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and requires the server to reboot. </p>
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<p>If the installation fails at an
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early stage, all <span class="keyword">i5/OS</span> objects
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that have been created are removed. However, if the installation fails after
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being transferred to the Linux console, the <span class="keyword">i5/OS</span> objects
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remain. This is because you might be able to correct the error and recover
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the installation. In this case, restart the server and the installation code
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will try to resume from the point of failure. If you are unable to recover,
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or you decide to restart the installation from scratch, you can delete the Linux server
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instance using the <span class="cmdname">DLTLNXSVR</span> command.</p>
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<div class="note"><span class="notetitle">Note:</span> Any time
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a restart of the Integrated xSeries<sup>®</sup> Adapter occurs, the attached xSeries is
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rebooted twice, so you see the Power On Self Test (POST) sequence twice. This
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is normal.</div>
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<p>To start the installation of Linux on the Integrated xSeries hardware,
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complete the following steps:</p>
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</div>
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<ol><li class="stepexpand"><span>If you are installing Linux on an Integrated xSeries Server,
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verify that the USB diskette drive is plugged into a USB port on the server.</span></li>
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<li class="stepexpand"><span>If you are installing Linux on an Integrated xSeries Adapter-attached xSeries,
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locate the driver diskette but do not insert it into the diskette drive of
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the xSeries server
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yet.</span></li>
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<li class="stepexpand"><span>Verify that no other NWSD is varied on for the hardware resource
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you want to install on by running the CL command by typing <kbd class="userinput">WRKCFGSTS
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*NWS</kbd>.</span> Display each NWSD that is varied on and confirm
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that it is not using the resource you intend to use.</li>
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<li class="stepexpand"><span>If you are installing Linux on an IXS, verify that the iSeries
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optical drive is varied on and that it is not being used by another job. Insert
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the Linux installation CD in the iSeries’ optical drive.</span></li>
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<li class="stepexpand"><span>Sign on to an <span class="keyword">i5/OS</span> green
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screen session with a profile that has the following authorities: <span class="cmdname">*IOSYSCFG,
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*ALLOBJ</span>, and <span class="cmdname">*JOBCTL</span> or <span class="cmdname">*SECADM</span>.</span></li>
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<li class="stepexpand"><span>Change the <span class="cmdname">QSYSOPR</span> message queue to something
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other than <span class="cmdname">*BREAK</span> so that the installation is not interrupted.
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For example, type the CL command <kbd class="userinput">CHGMSGQ MSGQ(QSYSOPR) DLVRY(*NOTIFY)</kbd>.</span></li>
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<li class="stepexpand"><span>On the i5/OS command line type INSLNXSVR and press <strong>F4</strong>.
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This will display the parameters for the command. Below is a brief description
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of the parameters that must be explicitly entered. All other parameters are
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filled in with default values which can be modified as you prefer. For more
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details on the parameters see the section tilted ‘INSLNXSVR command parameter
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descriptions’.</span> <dl><dt class="dlterm">Network Server Description</dt>
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<dd><p>Choose any name of up to eight characters that is meaningful to you.
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This does not have to be identical to the Linux server’s host name. It is simply
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used to track the <span class="keyword">i5/OS</span> objects
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associated with the integrated server. This name is used as the prefix for
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the system and install drives, and the Point-to-Point Virtual Ethernet line
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description.</p>
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</dd>
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</dl>
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<dl><dt class="dlterm">Resource name</dt>
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<dd><p>Type in the hardware resource name (LINxx) for the Integrated xSeries
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Server or Integrated xSeries Adapter that you identified.</p>
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</dd>
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</dl>
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<dl><dt class="dlterm">Linux server
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distribution</dt>
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<dd><p>Select the appropriate distribution. At the time of writing, the valid
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options are *RHEL3, *RHEL4, *SLES8 or *SLES9. This might change as newer Linux distributions
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become available. <strong>Note:</strong> RHEL 3 is the only Linux distribution supported
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on the IXS.</p>
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</dd>
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</dl>
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<p>There are a few parameters that are filled in by default
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but are worth noting here. These parameters are critical to the Linux install.</p>
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<dl><dt class="dlterm">Server storage space sizes</dt>
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<dd><p><strong>• Install source size</strong></p>
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<p>The default value is calculated
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based on the space required to hold the install source. Typically, a storage
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space of 200 megabytes is created for the install source disk. This virtual
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disk can be a between 200 MB and 2047 MB. It does not need to be larger than
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the calculated value and it must be kept as *FAT format. The Linux integration
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code installs some utilities and configuration files here for its own use.
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The install drive is not intended for public use.</p>
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<p><strong>• System size</strong></p>
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<p>The
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default value is calculated based on the space required to hold the Linux
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installation. Typically, a storage space of 12000 megabytes is created for
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the system disk. The size of the system storage space can be anywhere between
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1024 MB and 1024000 MB. Depending on how much data you want to store on this
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disk, you might need to make it considerably larger. The calculated value
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takes into account the following:</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><caption>Table 1. System storage space</caption><thead align="left"><tr valign="bottom"><th valign="bottom" id="d0e211">Partition</th>
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<th valign="bottom" id="d0e213">Description</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" headers="d0e211 ">Linux system partition(s)</td>
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<td valign="top" headers="d0e213 ">The estimate for the root and boot (if created) partitions
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with room for updates is 8 GB.</td>
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</tr>
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<tr><td valign="top" headers="d0e211 ">Swap partition</td>
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<td valign="top" headers="d0e213 ">This needs to be at least as large as the amount of
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installed memory. We assume 4 GB.</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="note"><span class="notetitle">Note:</span> Be careful about specifying a system drive size less than the
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calculated value. While this might work initially, over time
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as you install more distribution updates you might run out of space.</div>
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<p>Unlike
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other Linux platforms, the size of the system drive on iSeries has absolutely
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no effect on performance. This is because storage spaces are actually files
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residing on iSeries disk storage, and the data is automatically spread across
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all physical disk drives in the specified auxiliary storage pool (ASP). Therefore,
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size the drive according to the space you need, not with any performance considerations
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in mind.</p>
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</dd>
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</dl>
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<dl><dt class="dlterm">Restricted device resources</dt>
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<dd><p>You can use this parameter to list iSeries tape and optical devices
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that you do not want to make available to the Linux server as virtual devices.
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However, the installation of RHEL 3 requires that at least one optical drive
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is not restricted.</p>
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</dd>
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</dl>
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</li>
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<li class="stepexpand"><span>When you press <span class="uicontrol">Enter</span>, the following occurs:</span> <ul><li>The NWSD is created.</li>
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<li>The system storage space is created. This might take a few minutes depending
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on the size.</li>
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<li>The install storage space is created.</li>
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<li>Files are copied to the install drive.</li>
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</ul>
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</li>
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<li class="stepexpand"><span>If you are installing Linux (other than RHEL 3) on an externally
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attached xSeries you will be prompted to input the installation media in the
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xSeries optical drive. For example, a SLES 9 install would prompt with:</span> <p><tt class="sysout">Please insert SLES9 disc 1 into the xSeries CD-ROM
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(C G).</tt></p>
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<p>Verify that the installation media is inserted
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in the xSeries’ CD-ROM drive. Type <kbd class="userinput">G</kbd> then press <span class="uicontrol">Enter</span>.
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(Do not insert the diskette at this time.)</p>
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</li>
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<li class="stepexpand"><span>The configuration files are updated and then the installation is
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transferred to the Linux server’s console. When this happens you see the
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following message at the bottom of the green screen session from which you
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ran the <span class="cmdname">INSLNXSVR</span> command: </span> <p><tt class="sysout">Network
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server install completed for <network server name>.</tt></p>
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<p>The
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server boots after the i5/OS portion of the installation has completed. The
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Linux installation wizard is displayed on the server’s console. You must now
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complete the installation from the Linux console.</p>
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</li>
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</ol>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rzau9comparameters.htm">INSLNXSVR command parameter descriptions</a></strong><br />
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This topic describes the command parameters associated with INSLNXSVR.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzau9kickoff.htm" title="This will help you learn about using Intel-based Linux solution on the iSeries platform with the Integrated xSeries Server and Integrated xSeries Adapter.">Linux on an integrated xSeries solution</a></div>
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</div>
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