Re: [Users] (potential bug) After I create a virtual disk I am unable to start a VM - Permissions issue ? The node seems to have no write access to the directory on the NFS server...

Wednesday, 28 March 2012

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On 03/27/2012 04:08 PM, Morgan Cox wrote:
...
 Hi

 http://www.ovirt.org/wiki/Troubleshooting_NFS_Storage_Issues

 - This seems to refer to setup on a redhat based system

 The fies it refers to do not exist on Debian - i.e

 /etc/sysconfig/nfs and/etc/nfsmount.conf - they do not exist...

 Do you know the equivalent on Debian ?

Sorry, i use fedora, and I dont know the equivalent of Debain.
Maybe asking the big brain(google) might help. There should be an
equivalent way of doing the same on debian.

Also in my case v4 was not a issue, as much as the perms and uid:gid
were, so look further to see perms and selinux booleans are
set correctly in your setup.

...
 Regards

 On 27 March 2012 07:07, Deepak C Shetty <deepakcs(a)linux.vnet.ibm.com 
 <mailto:deepakcs@linux.vnet.ibm.com>> wrote:

     On 03/26/2012 05:28 PM, Morgan Cox wrote:
>     Hi.
>
>     Still not actually managed to test a vm... I can start a VM (and
>     use spice) without a virtual disk.
>
>     However as soon as I add a virtual disk the VM no longer starts
>

     Go thru this and see if it helps...
     http://www.ovirt.org/wiki/Troubleshooting_NFS_Storage_Issues

>     example error message
>
>    
-------------------------------------------------------------------------------------------------------------------
>     VM ddf is down. Exit message internal error process exited while
>     connecting to monitor: qemu-kvm: -drive
>    
file=/rhev/data-center/b2b2e054-66b2-11e1-bda3-1728f784de9e/2f7ee7bc-09b3-42ba-af91-40d79293e360/images/c507a2bc-38c5-498e-88c0-7cce8169cf67/6c36c8e4-6618-42f3-9cc4-06d2bccdc9cf,if=none,id=drive-virtio-disk0,format=raw,serial=c507a2bc-38c5-498e-88c0-7cce8169cf67,cache=none,werror=stop,rerror=stop,aio=threads:
>     could not open disk image
>    
/rhev/data-center/b2b2e054-66b2-11e1-bda3-1728f784de9e/2f7ee7bc-09b3-42ba-af91-40d79293e360/images/c507a2bc-38c5-498e-88c0-7cce8169cf67/6c36c8e4-6618-42f3-9cc4-06d2bccdc9cf:
>     Permission denied .
>    
-------------------------------------------------------------------------------------------------------------------
>
>     I have noticed that the
>     directory /rhev/data-center/b2b2e054-66b2-11e1-bda3-1728f784de9e/
>     is not writable via the ovirt node server.
>
>     I am using a separate NFS server for storage.
>
>     Is this a bug ?
>
>     Does anyone know how to fix this ?
>
>     shall I report it ?
>
>     Many regards !
>
>
>     _______________________________________________
>     Users mailing list
>     Users(a)ovirt.org  <mailto:Users@ovirt.org>
>     http://lists.ovirt.org/mailman/listinfo/users

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    On 03/27/2012 04:08 PM, Morgan Cox wrote:
    <blockquote
cite="mid:CAGfHYAReOXdpuHZMtm-LYP_1uqdfxuC4G-LH0OfXa2DVYAg_Vg@mail.gmail.com"
      type="cite">Hi
      <div><br>
      </div>
      <div><a moz-do-not-send="true"
          href="http://www.ovirt.org/wiki/Troubleshooting_NFS_Storage_Issues&q...

target="_blank">http://www.ovirt.org/wiki/Troubleshooting_NF...
      <div><br>
      </div>
      <div>- This seems to refer to setup on a redhat based system</div>
      <div><br>
      </div>
      <div>The fies it refers to do not exist on Debian - i.e&nbsp;</div>
      <div><br>
      </div>
      <div><span style="line-height: 19px; font-size: 13px; font-family:
          sans-serif;">/etc/sysconfig/nfs&nbsp;</span><span
          style="line-height: 19px; font-size: 13px; font-family:
          sans-serif;">and</span><span style="line-height: 19px;
          font-size: 13px; font-family: sans-serif;">/etc/nfsmount.conf
          - they do not exist...</span></div>
      <div><br>
      </div>
      <div>Do you know the&nbsp;equivalent&nbsp;on Debian ?</div>
      <div><br>
      </div>
    </blockquote>
    <br>
    Sorry, i use fedora, and I dont know the equivalent of Debain.<br>
    Maybe asking the big brain(google) might help. There should be an <br>
    equivalent way of doing the same on debian.<br>
    <br>
    Also in my case v4 was not a issue, as much as the perms and uid:gid
    <br>
    were, so look further to see perms and selinux booleans are<br>
    set correctly in your setup.<br>
    <br>
    <blockquote
cite="mid:CAGfHYAReOXdpuHZMtm-LYP_1uqdfxuC4G-LH0OfXa2DVYAg_Vg@mail.gmail.com"
      type="cite">
      <div>Regards</div>
      <div><br>
        <br>
        <div class="gmail_quote">On 27 March 2012 07:07, Deepak C Shetty
          <span dir="ltr">&lt;<a moz-do-not-send="true"
              href="mailto:deepakcs@linux.vnet.ibm.com"
target=&quot;_blank&quot;&gt;deepakcs(a)linux.vnet.ibm.com&lt;/a&gt;&amp;gt;&lt;/span&gt;
          wrote:<br>
          <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
            0.8ex; border-left: 1px solid rgb(204, 204, 204);
            padding-left: 1ex;">
            <div text="#000000" bgcolor="#ffffff">
              <div> On 03/26/2012 05:28 PM, Morgan Cox wrote:
                <blockquote type="cite">Hi.
                  <div><br>
                  </div>
                  <div>Still not actually managed to test a vm...&nbsp;I can
                    start a VM (and use spice) without a virtual disk.</div>
                  <div><br>
                  </div>
                  <div>However as soon as I add a virtual disk the VM no
                    longer starts</div>
                  <div> <br>
                  </div>
                </blockquote>
                <br>
              </div>
              Go thru this and see if it helps...<br>
              <a moz-do-not-send="true"

href="http://www.ovirt.org/wiki/Troubleshooting_NFS_Storage_Issues&q...

target="_blank">http://www.ovirt.org/wiki/Troubleshooting_NF...
              <br>
              <br>
              <blockquote type="cite">
                <div>
                  <div>example error message</div>
                  <div><br>
                  </div>

<div>-------------------------------------------------------------------------------------------------------------------</div>
                  <div>VM ddf is down. Exit message internal error
                    process exited while connecting to monitor:
                    qemu-kvm: -drive

file=/rhev/data-center/b2b2e054-66b2-11e1-bda3-1728f784de9e/2f7ee7bc-09b3-42ba-af91-40d79293e360/images/c507a2bc-38c5-498e-88c0-7cce8169cf67/6c36c8e4-6618-42f3-9cc4-06d2bccdc9cf,if=none,id=drive-virtio-disk0,format=raw,serial=c507a2bc-38c5-498e-88c0-7cce8169cf67,cache=none,werror=stop,rerror=stop,aio=threads:

                    could not open disk image

/rhev/data-center/b2b2e054-66b2-11e1-bda3-1728f784de9e/2f7ee7bc-09b3-42ba-af91-40d79293e360/images/c507a2bc-38c5-498e-88c0-7cce8169cf67/6c36c8e4-6618-42f3-9cc4-06d2bccdc9cf:

                    Permission denied .</div>

<div>-------------------------------------------------------------------------------------------------------------------</div>
                  <div><br>
                  </div>
                  <div>I have noticed that the

directory&nbsp;/rhev/data-center/b2b2e054-66b2-11e1-bda3-1728f784de9e/
                    is not writable via the ovirt node server.</div>
                  <div><br>
                  </div>
                  <div>I am using a&nbsp;separate&nbsp;NFS server for
storage.</div>
                  <div><br>
                  </div>
                  <div>Is this a bug ?</div>
                  <div><br>
                  </div>
                  <div>Does anyone know how to fix this ?</div>
                  <div><br>
                  </div>
                  <div>shall I report it ?</div>
                  <div> <br>
                  </div>
                  <div>Many regards !</div>
                  <div><br>
                  </div>
                </div>
                <pre><fieldset></fieldset>
_______________________________________________
Users mailing list
<a moz-do-not-send="true" href="mailto:Users@ovirt.org"
target=&quot;_blank&quot;&gt;Users(a)ovirt.org&lt;/a&gt;
<a moz-do-not-send="true"
href="http://lists.ovirt.org/mailman/listinfo/users"
target="_blank">http://lists.ovirt.org/mailman/listinfo/user...
</pre>
              </blockquote>
              <br>
            </div>
          </blockquote>
        </div>
        <br>
      </div>
    </blockquote>
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Re: [Users] (potential bug) After I create a virtual disk I am unable to start a VM - Permissions issue ? The node seems to have no write access to the directory on the NFS server...