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Converting a Hardware Virtualized Guest to a Paravirtualized Guest
4-12 Oracle VM Server User's Guide
4.7 Converting a Hardware Virtualized Guest to a Paravirtualized Guest
You may want to convert a hardware virtualized guest to a paravirtualized guest. This
example uses Oracle Enterprise Linux 4 Update 5 as it does not support a direct
installation as a paravirtualized guest, and paravirtual drivers are available for this
operating system. This procedure gives an example of installing Oracle Enterprise
Linux as a hardware virtualized guest, then converting it to a paravirtualized guest.
To create an Oracle Enterprise Linux 4, Update 5, paravirtualized guest:
1. Copy the Oracle Enterprise-R4-U5-x86_64-dvd.iso image to the local file system of
the Oracle VM Server computer
# ls -l /root/Enterprise-R4-U5-x86_64-dvd.iso
-rw-r--r-- 1 root root 2530611200 Aug 2 13:03 /root/Enterprise-R4-U5-x86_
64-dvd.iso
2. Create a logical volume, which will be used as the guest disk image.
# lvcreate -L8G -n el4u5 VolGroup00
3. Run the virt-install command-line tool to create a hardware virtualized machine
domU, and install the Oracle Enterprise Linux operating system.
# virt-install -n el4u5 -f /dev/VolGroup00/el4u5 -v -c
/root/Enterprise-R4-U5-x86_64-dvd.iso -r 512 --vnc
If you see this error message:
main: unable to connect to host: Connection refused (111)
You must run VNCViewer to reconnect to the guest console:
# vncviewer :0
4. The Oracle Enterprise Linux install begins. From the installation choices, select the
following:
Installation type: Server
Package selection: Default.
Partition layout type: Make sure the guest has a single root partition. Do not
configure the virtual disk using LVM. Do not create a swap partition, or other
partitions mounted at other locations such as /usr or /boot.
Firewall: Disable.
SELinux: Disable.
Network: Configure the network settings for either DHCP or a fixed IP address.
5. When the Oracle Enterprise Linux installation is complete, restart the guest. If the
guest does not restart automatically, use the xm command-line tool to restart it, for
example:
# xm list
Name ID Mem VCPUs State Time(s)
Domain-0 0 944 2 r----- 5670.8
# xm create el4u5
Using config file "/etc/xen/el4u5".
Started domain el4u5
# vncviewer :0
- Oracle® VM 1
- Contents 3
- 6 Domain Live Migration 4
- Audience 7
- Documentation Accessibility 7
- Command Syntax 8
- Related Documents 8
- Conventions 9
- New Features in Release 2.1.2 11
- New Features in Release 2.1.5 11
- New Features in Release 2.1.1 12
- 1.1 What is Virtualization? 13
- 1.2 Why Virtualize? 13
- 1.3 Xen™ Technology 14
- 1.4 Oracle VM 14
- Oracle VM 15
- Oracle VM Server 17
- 2.2 Hypervisor 18
- 2.4 Management Domain 19
- 2.5 Domains 19
- 2.7 Creating Virtual Machines 19
- 2.8 Managing Domains 19
- Configuring Oracle VM Server 20
- 3.3 Starting Oracle VM Agent 22
- 3.4 Stopping Oracle VM Agent 23
- Monitoring Oracle VM Agent 24
- Creating an Installation Tree 26
- ■ Physical partition 31
- 4.5.3 Configuring the Guest 33
- 5.1 Domain Lifecycle 41
- 5.2.1 Monitoring Domains 42
- Domain Live Migration 45
- 6.2 Migrating a Domain 49
- Migrating a Domain 50
- 7.4 Repository Mount Options 52
- 7.5 Adding a Repository 52
- 7.6 Removing a Repository 53
- Removing a Repository 54
- Machines 55
- Figure 8–2 CD Found Screen 57
- ■ VM (guest) name 58
- ■ VM (guest) memory 58
- ■ Number of virtual CPUs 58
- ■ Console password 58
- High Availability 61
- High Availability (HA) 62
- 9.3 Creating HA Clusters 66
- 9.4 Enabling HA 67
- Enabling HA 68
- Command-Line Tools 69
- [--noapic] 73
- [--arch=arch] 73
- # xm list --long mydomain 76
- # xm log 76
- Unpauses a paused domain 78
- Command-Line Tools A-11 79
- --vcpus number 82
- --consolepasswd password 82
- Logfile Options 84
- Oracle VM Server API Options 84
- Oracle VM Server Options 85
- VNC Server Options 87
- Guest Configuration 89
- C.2.1 Setting Disk Priority 90
- Configuration File Example 1 91
- Configuration File Example 2 92
- Oracle VM Agent Architecture 93
- Oracle VM Agent Deployment 94
- Troubleshooting 97
- E.2 Using DHCP 98
- E.3 Guest Console Access 98
- Guest Console Access 99
- E.6 Setting the Guest’s Clock 101
- E.12 CD-ROM Image Not Found 103
- E.14 Migrating Domains 103
- Glossary 105
- Oracle VM Agent 106
- Glossary-3 107
- Glossary-4 108
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