[BlueOnyx:12647] Re: Urgent Hyper-V problem - please help :-)

[blueonyx at larsi.de]

Thanks Jason. I found your post already, but I can't boot an old kernel.
That was my biggest problem. ;-)

Lars


 Original Message processed by david®  
[BlueOnyx:12644] Re: Urgent Hyper-V problem - please help :-) (29-Mrz-2013 18:07)
From:   bluequartz at ozin.com
To (2):'BlueOnyx General Mailing List', blueonyx at blueonyx.it


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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