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HOWTO: Upgrade CentOS for Hyper-V with Linux

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HOWTO: Upgrading the CentOS kernel for a Hyper-V virtual machine with Linux Integration Components.

A kernel upgrade will cause a kernel panic. These instructions prevent the boot crash.

 

Upgrade the kernel:

#yum upgrade

If you boot with this, you will get the kernel panic.  Don’t worry.  Just press space at boot time and boot from your old kernel.  Write down your new kernel number, such as 2.6.18-274.17.1.el5

 

Compile the Linux IC for your new kernel.  You can use the latest IC at this time is v3.2:

mkdir /opt/linux_ic_rtm
cp -r /media/CDROM/* /opt/linux_ic_rtm
cd /opt/linux_ic_rtm
grep -ilR uname * | xargs sed -i 's/uname -r/echo "2.6.18-274.17.1.el5"/g'
make && make install
reboot

You can now let grub boot to your default kernel without a kernel panic.

Thanks to http://www.sudonym.com/398/kernel-panic-after-yum-update-centos-with-hyper-v-linux-integration-components

 

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