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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="Content-Script-Type" content="text/javascript" /> <title>Using a Permissions File with Oracle Enterprise Linux 4.0</title> <meta name="generator" content="Oracle DARB XHTML Converter (Mode = ohj/ohw) - Version 5.1 Build 135" /> <meta name="date" content="2009-06-04T14:31:50Z" /> <meta name="robots" content="noarchive" /> <meta name="doctitle" content="Using a Permissions File with Oracle Enterprise Linux 4.0" /> <meta name="relnum" content="11g Release 2 (11.2)" /> <meta name="partnum" content="E10743-01" /> <link rel="copyright" href="./dcommon/html/cpyr.htm" title="Copyright" type="text/html" /> <link rel="stylesheet" href="./dcommon/css/blafdoc.css" title="Oracle BLAFDoc" type="text/css" /> <link rel="contents" href="toc.htm" title="Contents" type="text/html" /> <link rel="prev" href="preparing009.htm" title="Previous" type="text/html" /> <link rel="next" href="preparing011.htm" title="Next" type="text/html" /> <script src="./callback.js" type="text/javascript"></script> <noscript>Your browser does not support JavaScript. This help page requires JavaScript to render correctly.</noscript> </head> <body> <div class="zz-skip-header"><a href="#BEGIN">Skip Headers</a></div> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr valign="bottom"> <td align="left"></td> <td align="center"><a href="preparing009.htm"><img src="./dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="preparing011.htm"><img src="./dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> <p><a id="BCGFGAIH" name="BCGFGAIH"></a><a id="TDPRC523" name="TDPRC523"></a></p> <div class="sect3"><!-- infolevel="all" infotype="General" --> <h1>Using a Permissions File with Oracle Enterprise Linux 4.0</h1> <a name="BEGIN" id="BEGIN"></a> <p><a id="sthref119" name="sthref119"></a><a id="sthref120" name="sthref120"></a>When you restart a Red Hat Enterprise Linux 4.0 system, ownership and permissions on block devices revert by default to the <code>root</code> user. If you are using block devices with this operating system for ASM disk group files, then you need to override this default.</p> <a id="TDPRC524" name="TDPRC524"></a> <p class="subhead2">To create a permissions file if you are using Red Hat Enterprise Linux 4.0:</p> <ol> <li> <p>Log in to the operating system as the <code>root</code> user.</p> </li> <li> <p>Change to the <code>/etc/udev/permissions.d</code> directory.</p> </li> <li> <p>Use a text editor to create a file named <code>49-oracle.permissions</code> to ensure correct ownership of the block devices when the operating system is restarted.</p> <p>The following is an example of the contents of the <code>/etc/udev/permissions.d/49-oracle.permissions</code> file:</p> <pre xml:space="preserve" class="oac_no_warn"> # ASM sda:oracle:dba:0660 sdb:oracle:dba:0660 sdc:oracle:dba:0660 sdd:oracle:dba:0660 sde:oracle:dba:0660 </pre></li> <li> <p>Save the file.</p> </li> <li> <p>(Optional) After creating the <code>oracle.permissions</code> file, the permissions on the shared devices are set automatically the next time the system is restarted. To set permissions to take effect immediately, without restarting the system, use the <code>chown</code> and <code>chmod</code> commands:</p> <pre xml:space="preserve" class="oac_no_warn"> chown oracle:dba /dev/sda chmod 660 /dev/sda chown oracle:dba /dev/sdb chown 660 /dev/sdb chown oracle:dba /dev/sdc chown 660 /dev/sdc chown oracle:dba /dev/sdd chown 660 /dev/sdd chown oracle:dba /dev/sde chown 660 /dev/sde </pre></li> <li> <p>Repeat these steps on each node in the cluster.</p> </li> </ol> </div> <!-- class="sect3" --> <!-- Start Footer --> <div class="footer"> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr> <td align="left"><span class="copyrightlogo">Copyright © 2006, 2009, Oracle and/or its affiliates. All rights reserved.</span><br /> <a href="./dcommon/html/cpyr.htm"><span class="copyrightlogo">Legal Notices</span></a></td> <td align="center"><a href="preparing009.htm"><img src="./dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="preparing011.htm"><img src="./dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> </div> <!-- class="footer" --> </body> </html>
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