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command_line [2011/04/26 16:42] k2patel |
command_line [2020/08/10 02:35] 127.0.0.1 external edit |
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====== KVM Command Line ====== | ====== KVM Command Line ====== | ||
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[[http://libvirt.org/formatdomain.html|Domain Format in KVM]] | [[http://libvirt.org/formatdomain.html|Domain Format in KVM]] | ||
+ | |||
+ | ==== Test your bootable USB on kvm ==== | ||
+ | In order to test your USB using KVM use following command. | ||
+ | <code bash> | ||
+ | qemu-kvm -hdb <device> | ||
+ | </code> | ||
+ | In my case device was "/dev/sdb". | ||
==== Converting Existing Image ==== | ==== Converting Existing Image ==== | ||
=== Converting VMWARE image for KVM === | === Converting VMWARE image for KVM === | ||
+ | |||
use following command. | use following command. | ||
<code bash> | <code bash> | ||
qemu-img convert own_Cloud.vmdk -O qcow2 ownCloud.qcow | qemu-img convert own_Cloud.vmdk -O qcow2 ownCloud.qcow | ||
</code> | </code> | ||
+ | |||
+ | === Converting .ova to KVM image === | ||
+ | what is ova - Open Virtualization Format | ||
+ | |||
+ | [[http://communities.vmware.com/community/vmtn/server/vsphere/automationtools/ovf | Download - Open Virtualization Format Tool ]] | ||
+ | |||
+ | Install it, which give you command "ovftool". | ||
+ | |||
+ | <code bash> | ||
+ | ovftool -tt=vmx Amazon-EC2-VM-Import-Connector.ova amazon_kvm | ||
+ | </code> | ||
+ | |||
+ | converting .ova is just easy\\ | ||
+ | some times ovftool failing\\ | ||
+ | |||
+ | <html> | ||
+ | <span style="color:red;font-size:150%;">If Above does not work just do</span> | ||
+ | <p><span style="color:red;font-size:150%;"> tar -xvf Amazon-EC2-VM-Import-Connector.ova </span></p> | ||
+ | </html> | ||
+ | |||
+ | Now follow [[ #Converting VMWARE image for KVM | Converting VMWARE image for KVM ]] | ||
+ | |||
+ | |||
==== Create New KVM Guest using existing Image ==== | ==== Create New KVM Guest using existing Image ==== | ||
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</code> | </code> | ||
+ | ==== FU Commands ==== | ||
+ | |||
+ | === Create Disk === | ||
+ | create disk of size 10G | ||
+ | <code bash | for dynamic allocation> | ||
+ | qemu-img create -f raw vdisk.img 10G | ||
+ | </code> | ||
+ | OR | ||
+ | <code bash | preallowcation> | ||
+ | dd if=/dev/zero of=vdisk.img bs=1G count=0 seek=[NUMBER_OF_GB] | ||
+ | </code> | ||
+ | |||
+ | ==== How to allow network access to KVM Guest ==== | ||
+ | |||
+ | Modify guest.xml file and listen variable. | ||
+ | <code bash | vi /etc/libvirt/qemu/Archlinux.xml> | ||
+ | <graphics type='vnc' port='-1' autoport='yes' listen='192.168.1.4' passwd='testing1'/> | ||
+ | </code> | ||
+ | |||
+ | ==== Extract folder from KVM Guest Image ==== | ||
+ | This is appear to be far easy solution then i thought.\\ | ||
+ | [[http://libguestfs.org/virt-copy-out.1.html|Link to official Document]] | ||
+ | |||
+ | For RHEL you require following packages installed. | ||
+ | * libguestfs-tools | ||
+ | * libguestfs-xfs # if guest filesystem is XFS. | ||
+ | |||
+ | <code bash> | ||
+ | mkdir test | ||
+ | virt-copy-out -a machine2.qcow2 /metadata/testing/users test/ | ||
+ | </code> |