74 lines
5.0 KiB
HTML
74 lines
5.0 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta name="DC.Type" content="task" />
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<meta name="DC.Title" content="Use a rescue image from an NWSSTG" />
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<meta name="abstract" content="A rescue images contains the minimal version of all the basic diagnostic tools, drivers and other utilities that would be useful for checking a previously existing logical partition." />
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<meta name="description" content="A rescue images contains the minimal version of all the basic diagnostic tools, drivers and other utilities that would be useful for checking a previously existing logical partition." />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Use a rescue image from an NWSSTG</title>
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</head>
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<body id="rzalmrecoverysystem"><a name="rzalmrecoverysystem"><!-- --></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">Use a rescue image from an NWSSTG</h1>
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<div><p>A rescue images contains the minimal version of all the basic diagnostic
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tools, drivers and other utilities that would be useful for checking a previously
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existing logical partition.</p>
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<div class="section">To use the rescue image that you created on NWSSTG, use the following
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steps:</div>
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<ol><li class="stepexpand"><span>Disconnect the failed partition's virtual storage space (if applicable)
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through WKRNWSSTG.</span></li>
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<li class="stepexpand"><span>Connect your rescue storage space as the first drive to the NWSD
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and reconnect the original storage space (where applicable) as the second
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drive.</span></li>
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<li class="stepexpand"><span>Edit the NWSD for the failed partition to start from IPL Source
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*NWSSTG. Also edit the IPL Parameters Field to reflect the root partition
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on the rescue storage space.</span> For most distributions this is a parameter
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like 'root=/dev/hda3' or 'root=/dev/vda1' Refer to your Linux documentation
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for assistance or look at other running partitions using the command 'cat
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/proc/iSeries/mf/B/cmdline'.</li>
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<li class="stepexpand"><span>Boot the partition.</span></li>
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<li class="stepexpand"><span>If the existing root partition is on native disk, you may need
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to insert the ibmsis driver using the command "insmod ibmsis".</span></li>
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<li class="stepexpand"><span>Create a mount point to which you will mount the root partition
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of the network storage space you are trying to rescue. </span> You can
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use a command like "<kbd class="userinput">mkdir /mnt/rescue</kbd>".</li>
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<li class="stepexpand"><span>Now mount the root partition of the network storage space you are
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trying to rescue. </span> You mount a drive using the command "<kbd class="userinput">mount
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-t your partition's type partition's location mount point</kbd>" where
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the partition's type is the format of the partition like ext2 or reiserfs,
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the partition's location is something like /dev/hdb3 (for non-devfs), /dev/hd/disc1/part3
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(for devfs server) or /dev/sda2 in the case of a partition on native disk.
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It is important to note that the drive you are trying to rescue, when using
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virtual disk, will be the second drive rather than the first drive. (i.e.
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If the drive was /dev/hda3 when the partition was running normally, it will
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be /dev/hdb3 in the rescue server.) Here again, your Linux documentation or
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the configuration files you created when you created the rescue NWSSTG will
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help you determine the device for the root of the partition you are trying
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to rescue. Finally, your mount point will be something like /mnt/rescue if
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you use the example from above.</li>
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</ol>
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<div class="section">After following the steps listed above, you can either use the rescue
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tools provided in your rescue storage space against the mount point you created
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or you can change root to that partition using "<kbd class="userinput">chroot mount point</kbd>"
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to work on the partition from within its own storage space. See <a href="rzalmrecoverimage.htm">Build a rescue image on an NWSSTG</a> for more information.</div>
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</div>
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</body>
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</html>
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