Create Virtual Machine#12015/11/22 |
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Install GuestOS and create a Virtual Machine. This example shows to install SUSE Linux Enterprise Server 12.
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| [1] | Install GuestOS on text mode from local iso image (Download first), it's OK on Console or remote connection with Putty and so on. Furthermore, Virtual Machine's images are placed at /var/lib/libvirt/images by default as a Storage Pool, but this example shows to create and use a new Storage Pool. |
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# create a Storage Pool dlp:~ # mkdir -p /var/kvm/images dlp:~ # virt-install \
Starting install...
--name sles12 \
--ram 4096 \ --disk path=/var/kvm/images/sles12.img,size=30 \ --vcpus 2 \ --os-type linux \ --os-variant sles12 \ --network bridge=br0 \ --graphics none \ --console pty,target_type=serial \ --location /tmp/SLE-12-Server-DVD-x86_64-GM-DVD1.iso \ --extra-args 'console=ttyS0,115200n8 serial' # installation starts
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The example of options above means like follows. There are many options for others, make sure with "man virt-install".
--name
specify the name of Virtual Machine
--ram
specify the amount of memories of Virtual Machine
--disk path=xxx ,size=xxx
'path=' ⇒ specify the location of disks of Virtual Machine
--vcpus'size=' ⇒ specify the amount of disks of Virtual Machine
specify the virtual CPUs
--os-type
specify the type of GuestOS
--os-variant
specify the kind of GuestOS
--networkpossible to show the list of OS with follows # virt-install --os-variant list
specify network types of Virtual Machine
--graphics
specify the kind of graphics. if set 'none', it means nographics.
--console
specify the console type
--location
specify the location of installation where from
--extra-args
specify parameters that is set in kernel
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| [2] | Install on text mode, it's the same with common procedure of installation. After finishing installation, reboot first and then login prompt is shown like follwos. |
Welcome to SUSE Linux Enterprise Server 12 (x86_64) - Kernel 3.12.28-4-default (ttyS0). linux-paje login: |
| [3] | Move to GuestOS to HostOS with Ctrl + ] key. Move to HostOS to GuestOS with a command 'virsh console (name of virtual machine)'. |
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linux-paje:~ #
dlp:~ # # Ctrl + ] key dlp:~ # # Host's console virsh console sles12 # move to Guest Connected to domain sles12
Escape character is ^]
linux-paje:~ # # Enter key # Guest's console
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| [4] | It's easy to create another VM to copy from current VM with a command below. |
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dlp:~ # virt-clone --original sles12 --name template --file /var/kvm/images/template.img
Allocating 'template.img' | 30 GB 00:00:02
Clone 'template' created successfully.
# disk image dlp:~ # ll /var/kvm/images/template.img -rw------- 1 root root 32212254720 Nov 23 01:20 /var/kvm/images/template.img # xml file dlp:~ # ll /etc/libvirt/qemu/template.xml -rw------- 1 root root 3183 Nov 23 01:18 /etc/libvirt/qemu/template.xml |
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