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Oracle VM 3.x: Oracle Linux 6 guest VM conversion from HVM to PVM (Doc ID 1606398.1)

Last updated on FEBRUARY 14, 2022

Applies to:

Oracle Cloud Infrastructure - Version N/A and later
Oracle VM - Version 3.0.1 and later
Linux x86-64
Linux x86 ***   ***

Goal

The following procedure describes how to reconfigure an Oracle VM 3.x Oracle Linux 6 (OL6) 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:

  • Oracle VM 3.0.x, 3.1.x, 3.2.x
  • Oracle Linux 6 guest Virtual Machines (VMs)

Solution

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

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