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Oracle VM 3.x: Oracle Linux 5 guest VM conversion from HVM to PVM (Doc ID 1606399.1)

Last updated on FEBRUARY 04, 2019

Applies to:

Oracle VM - Version 3.0.1 and later
Oracle Cloud Infrastructure - Version N/A and later
Linux x86
Linux x86-64
*** Reviewed for currency 2015-05-14
*** Reviewed for currency 2017-01-23

Goal

The following procedure describes how to reconfigure an Oracle VM 3.x Oracle Linux 5 (OL5) guest Virtual Machine (VM) from fully/hardware virtualised (HVM) to paravirtualised (PVM).
Conversion of an Oracle Linux (OL) guest from HVM to PVM requires modification of the guest itself, as well as to the Oracle VM guest configuration.
All changes required to be made to the Oracle VM guest configuration file (vm.cfg) are performed via Oracle VM Manager.
Users are strongly advised against manual modification of Oracle VM Server and guest configuration files.
Do not attempt to use the described procedure to convert guests of other Oracle Linux versions.

This article is intended for Oracle VM and Oracle Linux System Administrators.
The article is applicable to:

Solution

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In this Document
Goal
Solution
 Special note regarding paravirt-ops (pvops) kernels
 1. Backup the Oracle Linux 5 HVM guest
 2. Sample Oracle Linux 5 HVM guest configuration
 3. Start the Oracle Linux 5 HVM guest
 4. Install the Xen/PVM guest kernel
 5. Modify the Oracle Linux 5 guest /etc/modprobe.conf file
 6. Rebuild the Oracle Linux 5 initial RAM disk
 7. Reconfigure the Oracle Linux 5 GRUB configuration
 8. Shut down the Oracle Linux 5 HVM guest
 9. Reconfigure the Oracle Linux 5 guest configuration - HVM to PVM
 10. Oracle Linux 5 PVM guest configuration
 11. Start the Oracle Linux 5 PVM converted guest
 12. Validate the newly converted Oracle Linux 5 PVM guest
 13. Troubleshooting and reverting the Oracle Linux 5 guest to HVM
References

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