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<li class="ulchildlink"><strong><a href="en-us_topic_0030713146.html">Supported OSs</a></strong><br>
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<li class="ulchildlink"><strong><a href="en-us_topic_0030713146.html">Supported OSs</a></strong><br>
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</li>
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</li>
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<li class="ulchildlink"><strong><a href="en-us_topic_0171668647.html">Permissions Management</a></strong><br>
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</li>
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<li class="ulchildlink"><strong><a href="en-us_topic_0194137262.html">Basic Concepts</a></strong><br>
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<li class="ulchildlink"><strong><a href="en-us_topic_0194137262.html">Basic Concepts</a></strong><br>
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</li>
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</li>
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<li class="ulchildlink"><strong><a href="en-us_topic_0030713148.html">Related Services</a></strong><br>
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<li class="ulchildlink"><strong><a href="en-us_topic_0030713148.html">Related Services</a></strong><br>
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<a name="EN-US_TOPIC_0030713219"></a><a name="EN-US_TOPIC_0030713219"></a>
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<h1 class="topictitle1">What Do I Do If the Disks of an <span id="text66121038195516">ECS</span><span id="text0513594578"></span> Created from a CentOS Image Cannot Be Found?</h1>
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<div id="body8662426"><div class="section" id="EN-US_TOPIC_0030713219__section18306114420920"><h4 class="sectiontitle">Symptom</h4><p id="EN-US_TOPIC_0030713219__p16818144518914">Generally, this is because the xen-blkfront.ko module is not loaded during the startup. You need to modify OS kernel startup parameters. <a href="#EN-US_TOPIC_0030713219__en-us_topic_0029124532_fb625ead0fbca4936a8a0b147e6719b71">Figure 1</a> shows the startup screen after the login to the <span id="EN-US_TOPIC_0030713219__text2350237181212">ECS</span><span id="EN-US_TOPIC_0030713219__text163501937171216"></span>.</p>
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<div class="fignone" id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_fb625ead0fbca4936a8a0b147e6719b71"><a name="EN-US_TOPIC_0030713219__en-us_topic_0029124532_fb625ead0fbca4936a8a0b147e6719b71"></a><a name="en-us_topic_0029124532_fb625ead0fbca4936a8a0b147e6719b71"></a><span class="figcap"><b>Figure 1 </b>Startup screen</span><br><span><img id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_i88f9ae3a1989424aba6eddc547eb42cd" src="en-us_image_0207619456.png" title="Click to enlarge" class="imgResize"></span></div>
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</div>
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<div class="section" id="EN-US_TOPIC_0030713219__section1946018361020"><h4 class="sectiontitle">Solution</h4><p id="EN-US_TOPIC_0030713219__p1795244181019">Perform the following operations to modify OS kernel boot parameters:</p>
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<div class="note" id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_nbcc95175a5ef43b78d287940ddd22762"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_a1b2abdc617b0461b94cdd52b7c76b14f">These operations must be performed after the OS starts. You are advised to modify kernel boot parameters in the ECS used for creating the image.</p>
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</div></div>
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<ol id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_o48b024e942574496995f3c670e844a72"><li id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_l0d5fe430773244da90624a5765ef2a8d">Run the following command to log in to the OS:<div class="p" id="EN-US_TOPIC_0030713219__p17980945165714"><a name="EN-US_TOPIC_0030713219__en-us_topic_0029124532_l0d5fe430773244da90624a5765ef2a8d"></a><a name="en-us_topic_0029124532_l0d5fe430773244da90624a5765ef2a8d"></a><strong id="EN-US_TOPIC_0030713219__b1952814116573">lsinitrd /boot/initramfs-<em id="EN-US_TOPIC_0030713219__i10528941165712">`</em></strong><em id="EN-US_TOPIC_0030713219__i155301541125719">uname</em><strong id="EN-US_TOPIC_0030713219__b6529841125713"><em id="EN-US_TOPIC_0030713219__i1252914411577"> </em>-r<em id="EN-US_TOPIC_0030713219__i452924155716">`</em>.img |grep -i xen</strong><ul id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_ud11b5ac656014e9db18bf68a9844200b"><li id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_l28017a11ec4d437eac03ed373b3bc60e">If the command output contains <strong id="EN-US_TOPIC_0030713219__b4791162522714">xen-blkfront.ko</strong>, contact the customer service.</li><li id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_l34052a3752ed4f5580ac3cc98093dfbb">If no command output is displayed, go to <a href="#EN-US_TOPIC_0030713219__li155801950404">2</a>.</li></ul>
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</div>
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</li><li id="EN-US_TOPIC_0030713219__li155801950404"><a name="EN-US_TOPIC_0030713219__li155801950404"></a><a name="li155801950404"></a>Back up the GRUB configuration file.<ul id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_u3ed02047fb3f4ed9a7e25d5b47a8459f"><li id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_l82c1499875414c6ebb3003226d5d9276">If the ECS runs CentOS 6, run the following command:<p id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_a069c6cc3c08d4cf5808b0859f8fad722"><a name="EN-US_TOPIC_0030713219__en-us_topic_0029124532_l82c1499875414c6ebb3003226d5d9276"></a><a name="en-us_topic_0029124532_l82c1499875414c6ebb3003226d5d9276"></a><strong id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_a4698d0fce14543e48057b1b707132b52">cp /boot/grub/grub.conf /boot/grub/grub.conf.bak</strong></p>
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</li><li id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_l11c51e55575f4dd2be98331dd417b84e">If the ECS runs CentOS 7, run the following command:<p id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_a5ad5314156bb4e089f1fa0924789c3d0"><a name="EN-US_TOPIC_0030713219__en-us_topic_0029124532_l11c51e55575f4dd2be98331dd417b84e"></a><a name="en-us_topic_0029124532_l11c51e55575f4dd2be98331dd417b84e"></a><strong id="EN-US_TOPIC_0030713219__b31042411165831">cp /boot/grub2/grub.cfg /boot/grub2/grub.cfg.bak</strong></p>
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</li></ul>
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</li><li id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_lb42d2e83c0d0431a9feb002013a8068c">Use the <strong id="EN-US_TOPIC_0030713219__b0196185122518">vi</strong> editor to open the GRUB configuration file. Run the following command (using CentOS 7 as an example):<p id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_a95ace42bb55a4defbf9b0d034800a661"><strong id="EN-US_TOPIC_0030713219__b29668680115327">vi /boot/grub2/grub.cfg</strong></p>
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</li><li id="EN-US_TOPIC_0030713219__li946318546019">Add <strong id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_en-us_topic_0027434320_b47529299">xen_emul_unplug=all</strong> to the default boot kernel.<div class="note" id="EN-US_TOPIC_0030713219__note354838131719"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0030713219__p5619742617115">Search for the line that contains <strong id="EN-US_TOPIC_0030713219__b842352706155535">root=UUID=</strong> and add <strong id="EN-US_TOPIC_0030713219__b842352706155552">xen_emul_unplug=all</strong> to the end of the line.</p>
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</div></div>
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<pre class="screen" id="EN-US_TOPIC_0030713219__screen1115785484614">menuentry 'CentOS Linux (3.10.0-229.el7.x86_64) 7 (Core) with debugging' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-229.el7.x86_64-advanced-bf3cc825-7638-48d8-8222-cd2f412dd0de' {
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load_video
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set gfxpayload=keep
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insmod gzio
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insmod part_msdos
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insmod ext2
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set root='hd0,msdos1'
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if [ x$feature_platform_search_hint = xy ]; then
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search --no-floppy --fs-uuid --set=root --hint='hd0,msdos1' bf3cc825-7638-48d8-8222-cd2f412dd0de
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else
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search --no-floppy --fs-uuid --set=root bf3cc825-7638-48d8-8222-cd2f412dd0de
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fi
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linux16 /boot/vmlinuz-3.10.0-229.el7.x86_64 root=UUID=bf3cc825-7638-48d8-8222-cd2f412dd0de <strong id="EN-US_TOPIC_0030713219__b1429814162473">xen_emul_unplug=all</strong> ro crashkernel=auto rhgb quiet systemd.log_level=debug systemd.log_target=kmsg
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initrd16 /boot/initramfs-3.10.0-229.el7.x86_64.img
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}</pre>
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</li><li id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_lb8b39afff96444d98eaa5ac6c75770af">Press <strong id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_en-us_topic_0027434320_b25320898">Esc</strong>, enter <strong id="EN-US_TOPIC_0030713219__b813335516575">:wq</strong>, and press <strong id="EN-US_TOPIC_0030713219__en-us_topic_0029124532_en-us_topic_0027434320_b37726867">Enter</strong> to exit the vi editor.</li><li id="EN-US_TOPIC_0030713219__li117451331512">Create an image using the ECS, upload and register the image on the cloud platform.</li></ol>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0030713220.html">ECS Creation</a></div>
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</div>
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</div>
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<script language="JavaScript">
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<!--
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image_size('.imgResize');
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var msg_imageMax = "view original image";
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var msg_imageClose = "close";
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//--></script>
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<a name="EN-US_TOPIC_0037352182"></a><a name="EN-US_TOPIC_0037352182"></a>
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<h1 class="topictitle1">Installing the PV Driver</h1>
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<div id="body8662426"><div class="section" id="EN-US_TOPIC_0037352182__section854616214319"><h4 class="sectiontitle">Scenarios</h4><p id="EN-US_TOPIC_0037352182__p117659311137">When using an <span id="EN-US_TOPIC_0037352182__text1995081963920">ECS</span><span id="EN-US_TOPIC_0037352182__text5714228398"></span> or external image file to create a private image, ensure that the <span class="keyword" id="EN-US_TOPIC_0037352182__keyword127969321533">PV driver</span> has been installed in the OS to enable Xen virtualization for subsequently created <span id="EN-US_TOPIC_0037352182__text16861428152016">ECS</span><span id="EN-US_TOPIC_0037352182__text1386162872018"></span>s, improve the I/O processing performance of the <span id="EN-US_TOPIC_0037352182__text354545933911">ECS</span><span id="EN-US_TOPIC_0037352182__text1954510597390"></span>s, and implement advanced functions such as monitoring hardware of the <span id="EN-US_TOPIC_0037352182__text16598145392216">ECS</span><span id="EN-US_TOPIC_0037352182__text559935319227"></span>s.</p>
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<div class="caution" id="EN-US_TOPIC_0037352182__note11749015313"><span class="cautiontitle"><img src="public_sys-resources/caution_3.0-en-us.png"> </span><div class="cautionbody"><p id="EN-US_TOPIC_0037352182__p127491518311">If you do not install the PV driver, the ECS network performance will be poor, and the security group and firewall configured for the ECS will not take effect.</p>
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</div></div>
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<p id="EN-US_TOPIC_0037352182__p144009125129">The PV driver has been installed by default when you use a public image to create <span id="EN-US_TOPIC_0037352182__text86041542195115">ECS</span><span id="EN-US_TOPIC_0037352182__text1160424275115"></span>s. You can perform the following operations to verify the installation:</p>
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<p id="EN-US_TOPIC_0037352182__p0645651619">Open the <strong id="EN-US_TOPIC_0037352182__b9604151132510">version</strong> configuration file to check whether the PV driver is the latest:</p>
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<div class="p" id="EN-US_TOPIC_0037352182__p989355218163"><strong id="EN-US_TOPIC_0037352182__b38941852191611">C:\Program Files (x86)\Xen PV Drivers\bin\version</strong><ul id="EN-US_TOPIC_0037352182__ul1042572515188"><li id="EN-US_TOPIC_0037352182__li184251325191818">If the PV driver version is later than 2.5, you do not need to install the PV driver.</li><li id="EN-US_TOPIC_0037352182__li16427142581817">If the PV driver version is not displayed or the version is 2.5 or earlier, perform operations in <a href="#EN-US_TOPIC_0037352182__en-us_topic_0036684067_section46181951">Installing the PV Driver</a>.</li></ul>
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</div>
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</div>
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<div class="section" id="EN-US_TOPIC_0037352182__en-us_topic_0036684067_section34957489"><h4 class="sectiontitle">Prerequisites</h4><ul id="EN-US_TOPIC_0037352182__en-us_topic_0036684067_ul18176840"><li id="EN-US_TOPIC_0037352182__en-us_topic_0036684067_li29373839">An OS has been installed for the ECS, and an EIP has been bound to the ECS.</li><li id="EN-US_TOPIC_0037352182__en-us_topic_0036684067_li5801050">The remaining capacity of the ECS system disk must be greater than 32 MB.</li><li id="EN-US_TOPIC_0037352182__li30470486164045">If the ECS uses Windows 2008, you must install the PV driver using the administrator account.</li><li id="EN-US_TOPIC_0037352182__li65946474161528">The PV driver software package has been downloaded on the ECS. For how to obtain the software package, see <a href="en-us_topic_0037352059.html">Obtaining Required Software Packages</a>.</li><li id="EN-US_TOPIC_0037352182__li1970892842414">To avoid an installation failure, perform the following operations before starting the installation:<ul id="EN-US_TOPIC_0037352182__ul206401448192415"><li id="EN-US_TOPIC_0037352182__li9640204882412">Uninstall third-party virtualization platform tools, such as Citrix Xen Tools and VMware Tools. For how to uninstall the tools, see the corresponding official documents of the tools.</li><li id="EN-US_TOPIC_0037352182__li16797576241">Disable your antivirus and intrusion detection software. You can enable the software after the PV driver is installed.</li></ul>
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</li></ul>
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</div>
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<div class="section" id="EN-US_TOPIC_0037352182__en-us_topic_0036684067_section46181951"><a name="EN-US_TOPIC_0037352182__en-us_topic_0036684067_section46181951"></a><a name="en-us_topic_0036684067_section46181951"></a><h4 class="sectiontitle">Installing the PV Driver</h4><ol id="EN-US_TOPIC_0037352182__en-us_topic_0036684067_ol22594769"><li id="EN-US_TOPIC_0037352182__en-us_topic_0036684067_li52486654">Log in to the Windows ECS using VNC.<p id="EN-US_TOPIC_0037352182__en-us_topic_0029124554_p1364116193342"><a name="EN-US_TOPIC_0037352182__en-us_topic_0036684067_li52486654"></a><a name="en-us_topic_0036684067_li52486654"></a>For details about how to log in to an <span id="EN-US_TOPIC_0037352182__en-us_topic_0030713152_text14252132432316"></span><span id="EN-US_TOPIC_0037352182__en-us_topic_0030713152_text12571524122319">ECS</span>, see <em id="EN-US_TOPIC_0037352182__en-us_topic_0030713152_i2258132414237">Elastic Cloud Server User Guide</em>.</p>
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<div class="note" id="EN-US_TOPIC_0037352182__note1090318335013"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0037352182__p129041331202">You must log in to the <span id="EN-US_TOPIC_0037352182__text1914104563516">ECS</span><span id="EN-US_TOPIC_0037352182__text11141645103512"></span> using VNC. Remote desktop connection is not allowed because the NIC driver needs to be updated during the installation but the NIC is in use for the remote desktop connection. As a result, the installation will fail.</p>
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</div></div>
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</li><li id="EN-US_TOPIC_0037352182__li357604111225">On the <span id="EN-US_TOPIC_0037352182__text74384314447">ECS</span><span id="EN-US_TOPIC_0037352182__text114381733447"></span>, choose <strong id="EN-US_TOPIC_0037352182__b1158955885510">Start</strong> > <strong id="EN-US_TOPIC_0037352182__b1931112562554">Control Panel</strong>.</li><li id="EN-US_TOPIC_0037352182__li3218437011225">Click <strong id="EN-US_TOPIC_0037352182__b842352706172616">Uninstall a program</strong>.</li><li id="EN-US_TOPIC_0037352182__li2122388011225">Uninstall <strong id="EN-US_TOPIC_0037352182__b9579102855211">GPL PV drivers for Windows</strong> <em id="EN-US_TOPIC_0037352182__i842352697105851">x.x.x.xx</em> as prompted.</li><li id="EN-US_TOPIC_0037352182__li37882225101858">Download the required PV driver based on the ECS OS and <a href="en-us_topic_0037352059.html">Obtaining Required Software Packages</a>.</li><li id="EN-US_TOPIC_0037352182__li58280212162010">Decompress the PV driver software package.</li><li id="EN-US_TOPIC_0037352182__li17213003194528">Right-click <strong id="EN-US_TOPIC_0037352182__b3474953205211">GPL PV Drivers for Windows</strong> <em id="EN-US_TOPIC_0037352182__i138317576524">x.x.x.xx</em>, select <strong id="EN-US_TOPIC_0037352182__b842352706111750">Run as administrator</strong>, and complete the installation as prompted.</li><li id="EN-US_TOPIC_0037352182__en-us_topic_0036684067_li2035480">Restart the ECS as prompted to make the PV driver take effect.<p id="EN-US_TOPIC_0037352182__en-us_topic_0036684067_p18319327"><a name="EN-US_TOPIC_0037352182__en-us_topic_0036684067_li2035480"></a><a name="en-us_topic_0036684067_li2035480"></a>ECSs running Windows Server 2008 must be restarted twice.</p>
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<div class="note" id="EN-US_TOPIC_0037352182__note4783367164113"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0037352182__p28024235164133">After the PV driver is installed, the <span id="EN-US_TOPIC_0037352182__text132721021154419">ECS</span><span id="EN-US_TOPIC_0037352182__text15272112194414"></span> NIC configuration will be lost. If you have configured NICs before, you need to configure them again.</p>
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</div></div>
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</li></ol>
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</div>
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<div class="section" id="EN-US_TOPIC_0037352182__en-us_topic_0036684065_section42271171"><h4 class="sectiontitle">Verifying the Installation</h4><p id="EN-US_TOPIC_0037352182__p56249916193724">Perform the following steps to verify the installation of the PV driver:</p>
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|
||||||
<ol id="EN-US_TOPIC_0037352182__ol32913969193726"><li id="EN-US_TOPIC_0037352182__li35437122193743">Click <strong id="EN-US_TOPIC_0037352182__b842352706111739">Start</strong>. Choose <strong id="EN-US_TOPIC_0037352182__b842352706111731">Control Panel</strong> > <strong id="EN-US_TOPIC_0037352182__b842352706111734">Programs and Features</strong>.</li><li id="EN-US_TOPIC_0037352182__li163633373219">Locate the PV driver for Windows.<p id="EN-US_TOPIC_0037352182__p6690434586"><a name="EN-US_TOPIC_0037352182__li163633373219"></a><a name="li163633373219"></a>If the PV driver exists, the installation is successful, as shown in <a href="#EN-US_TOPIC_0037352182__fig16926124855714">Figure 1</a>.</p>
|
|
||||||
<div class="fignone" id="EN-US_TOPIC_0037352182__fig16926124855714"><a name="EN-US_TOPIC_0037352182__fig16926124855714"></a><a name="fig16926124855714"></a><span class="figcap"><b>Figure 1 </b>Verifying the installation</span><br><span><img id="EN-US_TOPIC_0037352182__image792684820579" src="en-us_image_0219481382.png" title="Click to enlarge" class="imgResize"></span></div>
|
|
||||||
</li></ol>
|
|
||||||
</div>
|
|
||||||
</div>
|
|
||||||
<div>
|
|
||||||
<div class="familylinks">
|
|
||||||
<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0130878748.html">Optimizing a Windows Private Image</a></div>
|
|
||||||
</div>
|
|
||||||
</div>
|
|
||||||
|
|
||||||
|
|
||||||
<script language="JavaScript">
|
|
||||||
<!--
|
|
||||||
image_size('.imgResize');
|
|
||||||
var msg_imageMax = "view original image";
|
|
||||||
var msg_imageClose = "close";
|
|
||||||
//--></script>
|
|
||||||
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|
|||||||
<a name="EN-US_TOPIC_0037352186"></a><a name="EN-US_TOPIC_0037352186"></a>
|
|
||||||
|
|
||||||
<h1 class="topictitle1">Uninstalling the PV Driver from a Linux ECS</h1>
|
|
||||||
<div id="body8662426"><div class="section" id="EN-US_TOPIC_0037352186__section8801182220417"><h4 class="sectiontitle">Scenarios</h4><p id="EN-US_TOPIC_0037352186__p52381929246">When optimizing a Linux private image, you need to change the UUID in the fstab and GRUB configuration files, and install native Xen and KVM drivers on the ECS. To ensure that you can successfully install native Xen and KVM drivers, you must uninstall the PV driver from the ECS.</p>
|
|
||||||
</div>
|
|
||||||
<div class="section" id="EN-US_TOPIC_0037352186__section1381148120949"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0037352186__ol224055120949"><li id="EN-US_TOPIC_0037352186__li2016496420949">Log in to the ECS as user <strong id="EN-US_TOPIC_0037352186__b14781113820233">root</strong> using VNC.</li><li id="EN-US_TOPIC_0037352186__li6938631162439">Run the following command to check whether the PV driver is installed in the OS:<p id="EN-US_TOPIC_0037352186__p20486075161629"><a name="EN-US_TOPIC_0037352186__li6938631162439"></a><a name="li6938631162439"></a><strong id="EN-US_TOPIC_0037352186__b8312971161749">ps -ef | grep uvp-monitor</strong></p>
|
|
||||||
<p id="EN-US_TOPIC_0037352186__p48671008175113">The PV driver is installed in the OS if the following information is displayed:</p>
|
|
||||||
<pre class="screen" id="EN-US_TOPIC_0037352186__screen908620216247">root 4561 1 0 Jun29 ? 00:00:00 <strong id="EN-US_TOPIC_0037352186__b15373179161926">/usr/bin/uvp-monitor</strong>
|
|
||||||
root 4567 4561 0 Jun29 ? 00:00:00 <strong id="EN-US_TOPIC_0037352186__b37267969161926">/usr/bin/uvp-monitor</strong>
|
|
||||||
root 6185 6085 0 03:04 pts/2 00:00:00 grep uvp-monitor</pre>
|
|
||||||
<ul id="EN-US_TOPIC_0037352186__ul26027398101740"><li id="EN-US_TOPIC_0037352186__li36862232101740">If the PV driver is installed, go to <a href="#EN-US_TOPIC_0037352186__li4726695220949">3</a>.</li><li id="EN-US_TOPIC_0037352186__li59871273101740">If the PV driver is not installed, perform the operations in <a href="en-us_topic_0086024961.html">Changing the Disk Identifier in the fstab File to UUID</a>, <a href="en-us_topic_0000001120952155.html">Installing Native KVM Drivers</a>, and <a href="en-us_topic_0086020895.html">Changing the Disk Identifier in the GRUB Configuration File to UUID</a>.</li></ul>
|
|
||||||
</li><li id="EN-US_TOPIC_0037352186__li4726695220949"><a name="EN-US_TOPIC_0037352186__li4726695220949"></a><a name="li4726695220949"></a>In the VNC login window, open the CLI.<p class="litext" id="EN-US_TOPIC_0037352186__p2274938820949"><a name="EN-US_TOPIC_0037352186__li4726695220949"></a><a name="li4726695220949"></a>For how to open the CLI, see the OS manual.</p>
|
|
||||||
</li><li id="EN-US_TOPIC_0037352186__li341790520949">Run the following command to uninstall the PV driver:<p id="EN-US_TOPIC_0037352186__p3076115320949"><a name="EN-US_TOPIC_0037352186__li341790520949"></a><a name="li341790520949"></a><strong id="EN-US_TOPIC_0037352186__b841492320949">/etc/.uvp-monitor/uninstall</strong></p>
|
|
||||||
<ul id="EN-US_TOPIC_0037352186__ul16206112104011"><li id="EN-US_TOPIC_0037352186__li1520616264013">The PV driver is uninstalled successfully if the following command output is displayed:<pre class="screen" id="EN-US_TOPIC_0037352186__screen1996181720141">The PV driver is uninstalled successfully. Reboot the system for the uninstallation to take effect.</pre>
|
|
||||||
</li><li id="EN-US_TOPIC_0037352186__li134729102408">If <strong id="EN-US_TOPIC_0037352186__b11643133711257">.uvp-monitor</strong> is not contained in the command output, go to <a href="#EN-US_TOPIC_0037352186__li45681026173616">5</a>.<pre class="screen" id="EN-US_TOPIC_0037352186__screen95962407246">-bash: /etc/.uvp-monitor/uninstall: No such file or directory</pre>
|
|
||||||
</li></ul>
|
|
||||||
</li><li id="EN-US_TOPIC_0037352186__li45681026173616"><a name="EN-US_TOPIC_0037352186__li45681026173616"></a><a name="li45681026173616"></a>Perform the following operations to delete <span class="keyword" id="EN-US_TOPIC_0037352186__keyword1503865239163443">uvp-monitor</span> that failed to take effect, preventing log overflow:<ol type="a" id="EN-US_TOPIC_0037352186__ol1177115577182"><li id="EN-US_TOPIC_0037352186__li1619315540184">Run the following command to check whether UVP user-mode programs are installed in the OS:<p id="EN-US_TOPIC_0037352186__p623916527365"><a name="EN-US_TOPIC_0037352186__li1619315540184"></a><a name="li1619315540184"></a><strong id="EN-US_TOPIC_0037352186__b14214142313816">rpm -qa | grep uvp</strong></p>
|
|
||||||
<p id="EN-US_TOPIC_0037352186__p1231611518126">Information similar to the following is displayed:</p>
|
|
||||||
<pre class="screen" id="EN-US_TOPIC_0037352186__screen77141627162211">libxenstore_uvp3_0-3.00-36.1.x86_64
|
|
||||||
uvp-monitor-2.2.0.315-3.1.x86_64
|
|
||||||
kmod-uvpmod-2.2.0.315-3.1.x86_64</pre>
|
|
||||||
</li><li id="EN-US_TOPIC_0037352186__li113961115192211">Run the following commands to delete the installation packages:<p id="EN-US_TOPIC_0037352186__p102392052133618"><a name="EN-US_TOPIC_0037352186__li113961115192211"></a><a name="li113961115192211"></a><strong id="EN-US_TOPIC_0037352186__b11214112316381">rpm -e kmod-uvpmod</strong></p>
|
|
||||||
<p id="EN-US_TOPIC_0037352186__p623975210362"><strong id="EN-US_TOPIC_0037352186__b92146237389">rpm -e uvp-monitor</strong></p>
|
|
||||||
<p id="EN-US_TOPIC_0037352186__p20239155211369"><strong id="EN-US_TOPIC_0037352186__b52301423103820">rpm -e libxenstore_uv</strong><strong id="EN-US_TOPIC_0037352186__b13142131382019">p</strong></p>
|
|
||||||
</li></ol>
|
|
||||||
</li></ol>
|
|
||||||
</div>
|
|
||||||
</div>
|
|
||||||
<div>
|
|
||||||
<div class="familylinks">
|
|
||||||
<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0130878749.html">Optimizing a Linux Private Image</a></div>
|
|
||||||
</div>
|
|
||||||
</div>
|
|
||||||
|
|
||||||
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|
|||||||
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|
</th>
|
||||||
</tr>
|
</tr>
|
||||||
</thead>
|
</thead>
|
||||||
<tbody><tr id="EN-US_TOPIC_0041178787__row188838414814"><td class="cellrowborder" valign="top" width="18.990000000000002%" headers="mcps1.3.1.1.3.1.1 "><p id="EN-US_TOPIC_0041178787__p178841243815">2023-03-17</p>
|
<tbody><tr id="EN-US_TOPIC_0041178787__row9791337203417"><td class="cellrowborder" valign="top" width="18.990000000000002%" headers="mcps1.3.1.1.3.1.1 "><p id="EN-US_TOPIC_0041178787__p57911937173418">2023-03-27</p>
|
||||||
|
</td>
|
||||||
|
<td class="cellrowborder" valign="top" width="81.01%" headers="mcps1.3.1.1.3.1.2 "><p id="EN-US_TOPIC_0041178787__p179218376346">Added the following content:</p>
|
||||||
|
<ul id="EN-US_TOPIC_0041178787__ul1516517575561"><li id="EN-US_TOPIC_0041178787__li1916515575569"><a href="en-us_topic_0171668647.html">Permissions Management</a></li><li id="EN-US_TOPIC_0041178787__li12165165705619"><a href="en-us_topic_0171668648.html">Permissions Management</a></li><li id="EN-US_TOPIC_0041178787__li1816512573566"><a href="en-us_topic_0171668650.html">Creating a User and Granting Permissions</a></li><li id="EN-US_TOPIC_0041178787__li916613576564"><a href="en-us_topic_0171668651.html">Creating a Custom Policy</a></li></ul>
|
||||||
|
</td>
|
||||||
|
</tr>
|
||||||
|
<tr id="EN-US_TOPIC_0041178787__row188838414814"><td class="cellrowborder" valign="top" width="18.990000000000002%" headers="mcps1.3.1.1.3.1.1 "><p id="EN-US_TOPIC_0041178787__p178841243815">2023-03-17</p>
|
||||||
</td>
|
</td>
|
||||||
<td class="cellrowborder" valign="top" width="81.01%" headers="mcps1.3.1.1.3.1.2 "><p id="EN-US_TOPIC_0041178787__p7884546818">Modified the following content:</p>
|
<td class="cellrowborder" valign="top" width="81.01%" headers="mcps1.3.1.1.3.1.2 "><p id="EN-US_TOPIC_0041178787__p7884546818">Modified the following content:</p>
|
||||||
<ul id="EN-US_TOPIC_0041178787__ul1814410364911"><li id="EN-US_TOPIC_0041178787__li214413324917">Updated image export restrictions in <a href="en-us_topic_0030713180.html#EN-US_TOPIC_0030713180__en-us_topic_0030713149_li1784210562132">1</a>.</li><li id="EN-US_TOPIC_0041178787__li8144133174912">Updated operations in <a href="en-us_topic_0037352061.html">Installing UVP VMTools</a>.</li></ul>
|
<ul id="EN-US_TOPIC_0041178787__ul1814410364911"><li id="EN-US_TOPIC_0041178787__li214413324917">Updated image export restrictions in <a href="en-us_topic_0030713180.html#EN-US_TOPIC_0030713180__en-us_topic_0030713149_li1784210562132">1</a>.</li><li id="EN-US_TOPIC_0041178787__li8144133174912">Updated operations in <a href="en-us_topic_0037352061.html">Installing UVP VMTools</a>.</li></ul>
|
||||||
|
|||||||
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|
|||||||
<a name="EN-US_TOPIC_0125075471"></a><a name="EN-US_TOPIC_0125075471"></a>
|
|
||||||
|
|
||||||
<h1 class="topictitle1">Viewing the Virtualization Type of a Windows ECS</h1>
|
|
||||||
<div id="body1533545820770"><p id="EN-US_TOPIC_0125075471__p158328274716">Open the cmd window and run the following command to query the <span class="keyword" id="EN-US_TOPIC_0125075471__keyword1783354554910">virtualization type</span> of the ECS:</p>
|
|
||||||
<p id="EN-US_TOPIC_0125075471__p15705202204117"><strong id="EN-US_TOPIC_0125075471__b1474163392212">systeminfo</strong></p>
|
|
||||||
<p id="EN-US_TOPIC_0125075471__p5537203619515">If the values of <strong id="EN-US_TOPIC_0125075471__b842352706185949">System Manufacturer</strong> and <strong id="EN-US_TOPIC_0125075471__b842352706185952">BIOS Version</strong> are <strong id="EN-US_TOPIC_0125075471__b84235270619014">Xen</strong>, the ECS uses Xen. If KVM is required, perform the operations in this section to optimize a Windows private image.</p>
|
|
||||||
<div class="note" id="EN-US_TOPIC_0125075471__note17704155763510"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0125075471__p670513578356">If the ECS uses KVM, you are also advised to optimize the private image to prevent any exceptions with the ECSs created from the image.</p>
|
|
||||||
</div></div>
|
|
||||||
<div class="fignone" id="EN-US_TOPIC_0125075471__fig167731211184410"><span class="figcap"><b>Figure 1 </b>Viewing the virtualization type of a Windows ECS</span><br><span><img id="EN-US_TOPIC_0125075471__image17731211194413" src="en-us_image_0125154453.png" title="Click to enlarge" class="imgResize"></span></div>
|
|
||||||
</div>
|
|
||||||
<div>
|
|
||||||
<div class="familylinks">
|
|
||||||
<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0130878748.html">Optimizing a Windows Private Image</a></div>
|
|
||||||
</div>
|
|
||||||
</div>
|
|
||||||
|
|
||||||
|
|
||||||
<script language="JavaScript">
|
|
||||||
<!--
|
|
||||||
image_size('.imgResize');
|
|
||||||
var msg_imageMax = "view original image";
|
|
||||||
var msg_imageClose = "close";
|
|
||||||
//--></script>
|
|
||||||
127
docs/ims/umn/en-us_topic_0171668647.html
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|
|||||||
|
<a name="EN-US_TOPIC_0171668648"></a><a name="EN-US_TOPIC_0171668648"></a>
|
||||||
|
|
||||||
|
<h1 class="topictitle1">Permissions Management</h1>
|
||||||
|
<div id="body1558754397352"></div>
|
||||||
|
<div>
|
||||||
|
<ul class="ullinks">
|
||||||
|
<li class="ulchildlink"><strong><a href="en-us_topic_0171668650.html">Creating a User and Granting Permissions</a></strong><br>
|
||||||
|
</li>
|
||||||
|
<li class="ulchildlink"><strong><a href="en-us_topic_0171668651.html">Creating a Custom Policy</a></strong><br>
|
||||||
|
</li>
|
||||||
|
</ul>
|
||||||
|
</div>
|
||||||
|
|
||||||
25
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@ -0,0 +1,25 @@
|
|||||||
|
<a name="EN-US_TOPIC_0171668650"></a><a name="EN-US_TOPIC_0171668650"></a>
|
||||||
|
|
||||||
|
<h1 class="topictitle1">Creating a User and Granting Permissions</h1>
|
||||||
|
<div id="body1558754397352"><div class="section" id="EN-US_TOPIC_0171668650__section4602613232"><h4 class="sectiontitle">Scenarios</h4><p id="EN-US_TOPIC_0171668650__p105534277108">This section describes how to use <a href="https://docs.otc.t-systems.com/identity-access-management/umn/service_overview/what_is_iam.html" target="_blank" rel="noopener noreferrer">Identity and Access Management</a> (IAM) to implement fine-grained permissions control for your IMS resources. With IAM, you can:</p>
|
||||||
|
<ul id="EN-US_TOPIC_0171668650__ul17995102312513"><li id="EN-US_TOPIC_0171668650__li1299552315116">Create IAM users for employees based on the organizational structure of your enterprise. Each IAM user has their own security credentials, providing access to IMS resources.</li><li id="EN-US_TOPIC_0171668650__li9882124412514">Grant only the permissions required for users to perform a task.</li><li id="EN-US_TOPIC_0171668650__li597045645116">Entrust an account or cloud service to perform professional and efficient O&M on your IMS resources.</li></ul>
|
||||||
|
<p id="EN-US_TOPIC_0171668650__p990742143911">If your account does not need individual IAM users for permissions management, you can skip this section.</p>
|
||||||
|
<p id="EN-US_TOPIC_0171668650__p1225613104238">This section uses the <strong id="EN-US_TOPIC_0171668650__b38121510365">IMS ReadOnlyAccess</strong> permission as an example to describe how to grant permissions to a user. <a href="#EN-US_TOPIC_0171668650__fig5293113815405">Figure 1</a> shows the process.</p>
|
||||||
|
</div>
|
||||||
|
<div class="section" id="EN-US_TOPIC_0171668650__section16697112253"><h4 class="sectiontitle">Prerequisites</h4><p id="EN-US_TOPIC_0171668650__p1764821182920">Learn about the permissions (see <a href="en-us_topic_0171668647.html#EN-US_TOPIC_0171668647__section2091762218354">IMS Permissions</a>) supported by IMS. For the system permissions of other services, see <a href="https://docs.otc.t-systems.com/additional/permissions.html" target="_blank" rel="noopener noreferrer">Permissions</a>.</p>
|
||||||
|
</div>
|
||||||
|
<div class="section" id="EN-US_TOPIC_0171668650__section850121112517"><h4 class="sectiontitle">Process Flow</h4><div class="fignone" id="EN-US_TOPIC_0171668650__fig5293113815405"><a name="EN-US_TOPIC_0171668650__fig5293113815405"></a><a name="fig5293113815405"></a><span class="figcap"><b>Figure 1 </b>Process for granting IMS permissions</span><br><span><img id="EN-US_TOPIC_0171668650__image22931038164012" src="en-us_image_0221322139.png"></span></div>
|
||||||
|
<ol id="EN-US_TOPIC_0171668650__ol18219111182512"><li id="EN-US_TOPIC_0171668650__li2021991142518"><a name="EN-US_TOPIC_0171668650__li2021991142518"></a><a name="li2021991142518"></a><a href="https://docs.otc.t-systems.com/identity-access-management/umn/getting_started/creating_a_user_group_and_assigning_permissions.html" target="_blank" rel="noopener noreferrer">Create a user group and assign permissions</a>.<p id="EN-US_TOPIC_0171668650__p202191811122515">Create a user group on the IAM console, and grant the read-only permission to the group by assigning the <strong id="EN-US_TOPIC_0171668650__b16266195119515">IMS ReadOnlyAccess</strong> permission.</p>
|
||||||
|
</li><li id="EN-US_TOPIC_0171668650__li181761413162818"><a href="https://docs.otc.t-systems.com/identity-access-management/umn/getting_started/creating_a_user_and_adding_the_user_to_a_user_group.html" target="_blank" rel="noopener noreferrer">Create an IAM user and add it to the user group</a>.<p id="EN-US_TOPIC_0171668650__p12219811202516">Create a user on the IAM console and add the user to the group created in <a href="#EN-US_TOPIC_0171668650__li2021991142518">1</a>.</p>
|
||||||
|
</li><li id="EN-US_TOPIC_0171668650__li0219161112520">Log in and verify permissions.<p id="EN-US_TOPIC_0171668650__p14219111118251"><a name="EN-US_TOPIC_0171668650__li0219161112520"></a><a name="li0219161112520"></a>Log in to the management console using the IAM user, switch to a region where the permissions take effect, and verify the permissions (assume that the user has only the <strong id="EN-US_TOPIC_0171668650__b33271020147">IMS ReadOnlyAccess</strong> permission).</p>
|
||||||
|
<ul id="EN-US_TOPIC_0171668650__ul167682072620"><li id="EN-US_TOPIC_0171668650__li172971810261">In the <strong id="EN-US_TOPIC_0171668650__b1850719598">Service List</strong>, choose <strong id="EN-US_TOPIC_0171668650__b7637105916">Image Management Service</strong>. On the IMS console, perform operations except querying images, such as creating, modifying, and deleting an image.<p id="EN-US_TOPIC_0171668650__p0297518263">For example, click <strong id="EN-US_TOPIC_0171668650__b1520518711012">Create Private Image</strong> in the upper right corner. If you are prompted insufficient permissions, the <strong id="EN-US_TOPIC_0171668650__b1341183011014">IMS ReadOnlyAccess</strong> permission has taken effect.</p>
|
||||||
|
</li><li id="EN-US_TOPIC_0171668650__li206341719152613">Choose any other service in the <strong id="EN-US_TOPIC_0171668650__b151841916116">Service List</strong>, such as <strong id="EN-US_TOPIC_0171668650__b111857161814">Virtual Private Cloud</strong>. If a message appears indicating insufficient permissions to access the service, the <strong id="EN-US_TOPIC_0171668650__b718515164116">IMS ReadOnlyAccess</strong> permission has taken effect.</li></ul>
|
||||||
|
</li></ol>
|
||||||
|
</div>
|
||||||
|
</div>
|
||||||
|
<div>
|
||||||
|
<div class="familylinks">
|
||||||
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0171668648.html">Permissions Management</a></div>
|
||||||
|
</div>
|
||||||
|
</div>
|
||||||
|
|
||||||
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docs/ims/umn/en-us_topic_0171668651.html
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|
|||||||
|
<a name="EN-US_TOPIC_0171668651"></a><a name="EN-US_TOPIC_0171668651"></a>
|
||||||
|
|
||||||
|
<h1 class="topictitle1">Creating a Custom Policy</h1>
|
||||||
|
<div id="body1558754397352"><div class="section" id="EN-US_TOPIC_0171668651__section66212452235"><h4 class="sectiontitle">Scenarios</h4><p id="EN-US_TOPIC_0171668651__p1927012359421">Custom policies can be created as a supplement to the system permissions of IMS. For the actions supported for custom policies, see "Permissions Policies and Supported Actions" in <em id="EN-US_TOPIC_0171668651__i125938331062">Image Management Service API Reference</em>.</p>
|
||||||
|
<p id="EN-US_TOPIC_0171668651__p1461212398277">You can create custom policies in either of the following two ways:</p>
|
||||||
|
<ul id="EN-US_TOPIC_0171668651__ul8615534102814"><li id="EN-US_TOPIC_0171668651__en-us_topic_0165292620_li5764181518386">Visual editor: Select cloud services, actions, resources, and request conditions without the need to know policy syntax.</li><li id="EN-US_TOPIC_0171668651__en-us_topic_0165292620_li546410135389">JSON: Edit JSON policies from scratch or based on an existing policy.</li></ul>
|
||||||
|
<p id="EN-US_TOPIC_0171668651__p13255837172317">For details, see "Creating a Custom Policy" in <em id="EN-US_TOPIC_0171668651__i8329358816">Identity and Access Management User Guide</em>. This section provides examples of common IMS custom policies.</p>
|
||||||
|
</div>
|
||||||
|
<div class="section" id="EN-US_TOPIC_0171668651__section1449217811913"><h4 class="sectiontitle">Example Policies</h4><ul id="EN-US_TOPIC_0171668651__ul186388810910"><li id="EN-US_TOPIC_0171668651__li86381482093">Example 1: Allowing users to create images<pre class="screen" id="EN-US_TOPIC_0171668651__screen945417131310">{
|
||||||
|
"Version": "1.1",
|
||||||
|
"Statement": [
|
||||||
|
{
|
||||||
|
"Effect": "Allow",
|
||||||
|
"Action": [
|
||||||
|
"<strong id="EN-US_TOPIC_0171668651__b144821634135313">ims:serverImages:create</strong>",
|
||||||
|
"obs:bucket:*",
|
||||||
|
"obs:object:*",
|
||||||
|
"kms:*:*",
|
||||||
|
"ecs:cloudServers:get",
|
||||||
|
"ecs:servers:get",
|
||||||
|
"ecs:serverVolumes:use",
|
||||||
|
"ecs:cloudServers:list",
|
||||||
|
"ecs:serverVolumeAttachments:list",
|
||||||
|
"ecs:servers:list",
|
||||||
|
"evs:volumes:*",
|
||||||
|
"bms:servers:list",
|
||||||
|
"bms:servers:get",
|
||||||
|
"bms:serverFlavors:get"
|
||||||
|
]
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}</pre>
|
||||||
|
<div class="note" id="EN-US_TOPIC_0171668651__note118866085410"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0171668651__p14897160195415">The action required for creating an image is <strong id="EN-US_TOPIC_0171668651__b08882051124614">ims:serverImages:create</strong>. Others are dependent actions for creating an image.</p>
|
||||||
|
</div></div>
|
||||||
|
</li><li id="EN-US_TOPIC_0171668651__li166381787912">Example 2: Denying image deletion<p id="EN-US_TOPIC_0171668651__p863811813911"><a name="EN-US_TOPIC_0171668651__li166381787912"></a><a name="li166381787912"></a>A deny policy must be used in conjunction with other policies to take effect. If the policies assigned to a user contain both Allow and Deny actions, the Deny actions take precedence over the Allow actions.</p>
|
||||||
|
<p id="EN-US_TOPIC_0171668651__p4638128091">The following method can be used if you need to assign the <strong id="EN-US_TOPIC_0171668651__b264153703111">IMS FullAccess</strong> policy to a user but also forbid the user from deleting images. Create a custom policy for denying image deletion, and assign both the policies to the group the user belongs to. Then, the user can perform all operations on IMS except deleting images. The following is an example deny policy:</p>
|
||||||
|
<pre class="screen" id="EN-US_TOPIC_0171668651__screen014232991317">{
|
||||||
|
"Version": "1.1",
|
||||||
|
"Statement": [
|
||||||
|
{
|
||||||
|
"Effect": "Deny",
|
||||||
|
"Action": [
|
||||||
|
"ims:images:delete"
|
||||||
|
]
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}</pre>
|
||||||
|
</li></ul>
|
||||||
|
</div>
|
||||||
|
</div>
|
||||||
|
<div>
|
||||||
|
<div class="familylinks">
|
||||||
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0171668648.html">Permissions Management</a></div>
|
||||||
|
</div>
|
||||||
|
</div>
|
||||||
|
|
||||||
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Block a user