[BlueOnyx:12645] Re: Urgent Hyper-V problem - please help :-)

[bluequartz at ozin.com]

Kernel 5.9 and 6.4 (2.6.32-358) has proper built in support for Hyper-V

 

All you need to do is:

 

Boot into the old kernel

Remove the old Hyper-V components as follows:

 

Execute the following steps in the bash shell.

1. First, execute:

rpm -qa | grep microsoft

Example:

On a RHEL 5.8 system, you will see the following:

# rpm -qa | grep microsoft

kmod-microsoft-hyper-v-3.4-1.20120727

microsoft-hyper-v-3.4.20120727

2. Next, execute:

rpm -e microsoft-hyper-v-<version string from step 1>
kmod-microsoft-hyper-v-<version string from step 1>

 

            Then reboot into the new kernel 2.6.32-358

 

You can then add a NON-LEGACY network card and have a much faster network
stack. Give the new card the same Virtual MAC as the old card and there are
no config changes needed either

 

Jason Ozin

 

 

From: blueonyx-bounces at mail.blueonyx.it
[mailto:blueonyx-bounces at mail.blueonyx.it] On Behalf Of blueonyx at larsi.de
Sent: 29 March 2013 16:52
To: blueonyx at blueonyx.it
Subject: [BlueOnyx:12643] Urgent Hyper-V problem - please help :-)

 

 

Hello,

 

I did a yum update on a customers server and after that there is no network
connection.

 

I read all the issues with hyper-v and sometime ago Michael noticed a
problem with irqbalancing on this server. But this time "service
irqbalancing stop" did not change anything.

 

All solutions point me to boot an older kernel, but I can't do this.
Everytime I boot the machine, it allways go to the last kernel and changing
the grub.conf only results in a broken server, which won't boot anymore.

 

Does anyone has an idea for me? I can boot the server in kernel
2.6.32-279.5.1.el6.i686.

 

Thanks in advance.

Lars.

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