<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Verdana;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal;
font-family:"Verdana","sans-serif";
color:#0D0D0D;
font-weight:normal;
font-style:normal;
text-decoration:none none;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Verdana","sans-serif";
color:#0D0D0D;
font-weight:normal;
font-style:normal;
text-decoration:none none;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-GB link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>Further to the below, I have more information.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>Kernel 5.9 has built in support for Hyper-V<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>(see: <a href="http://virtualisationandmanagement.wordpress.com/2013/01/10/red-hat-rhel-5-9-now-includes-the-hyper-v-linux-integration-services-built-in/">http://virtualisationandmanagement.wordpress.com/2013/01/10/red-hat-rhel-5-9-now-includes-the-hyper-v-linux-integration-services-built-in/</a> )<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>so actually all you need to do is:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>Boot into the old kernel<o:p></o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>Remove the old Hyper-V components as follows:<o:p></o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:72.0pt'><i><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>Execute the following steps in the bash shell.<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:72.0pt'><i><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>1. First, execute:<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:72.0pt'><b><i><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>rpm –qa | grep microsoft<o:p></o:p></span></i></b></p><p class=MsoNormal style='margin-left:108.0pt'><i><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>Example:<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:108.0pt'><i><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>On a RHEL 5.8 system, you will see the following:<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:108.0pt'><i><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'># rpm –qa | grep microsoft<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:108.0pt'><i><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>kmod-microsoft-hyper-v-3.4-1.20120727<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:108.0pt'><i><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>microsoft-hyper-v-3.4.20120727<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:72.0pt'><i><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>2. Next, execute:<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:72.0pt'><b><i><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>rpm –e microsoft-hyper-v-</span></i></b><i><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'><version string from step 1> <b>kmod-microsoft-hyper-v-</b><version string from step 1><o:p></o:p></span></i></p><p class=MsoNormal><b><i><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'><o:p> </o:p></span></i></b></p><p class=MsoNormal><b><i><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'> </span></i></b><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>Then reboot into the new kernel<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D'>Jason Ozin<o:p></o:p></span></b></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>================================================</span></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>Hi Chuck<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>Don’t panic. I think I know what this is.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>I guess you are virtualised using Hyper-V and you recently did a yum update. The new kernel thus the new kernel cannot see your disks.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>The quick fix is to reboot, hit a key to get to the boot menu and select an earlier kernel.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>The next fix is to edit both:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D'>/boot/grub/grub.conf<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D'>/etc/grub.conf <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>And make the working kernel the default.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'>Then once you have calmed down look at post 11567 and 11643 in this list for the way to make the new kernel behave.<o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D'>Jason Ozin<o:p></o:p></span></b></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#0D0D0D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>