Xen/KVM Virtualization Management Application
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Karesansui Users


Boot from iso-image

Added by Anonymous 112 days ago

Good day!
I can not boot from the ISO image. After starting the virtual machine Qemu processor usage at 100% and the console says FATAL ERROR


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RE: Boot from iso-image - Added by Taizo ITO 111 days ago

Hi,

What kind of ISO did you use? e.g. CentOS 5.4 x86-64
And, could you tell me more what the console says?

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RE: Boot from iso-image - Added by Anonymous 108 days ago

When creating a virtual machine, point the way to the boot ISO image. After setting a new virtual machine saved I can not find in the section "Device" option, select the ISO image. Why? After I added iso-image in a virtual machine.

100% CPU usage seems to be figured out. I have Centos 5.4, and it has a bug that is fixed in Red Hat 5.5:

"An unhandled interrupt from the kvm_vcpu_block () call unhalted a VCPU outside of the interrupt
window. As a consequence, when the "there is no bootable disk" error presented the
qemu process used 100% of the available CPUs. The updated packages resolve this issue and the 1252
interrupt is now handled correctly. (BZ # 502086)"

You plan to move to Centos 5.5?

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RE: Boot from iso-image - Added by Anonymous 95 days ago

No one will answer?

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RE: Boot from iso-image - Added by Taizo ITO 95 days ago

Sorry for the late reply.
CentOS 5.5 will be supported in upcoming version 2.0.

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RE: Boot from iso-image - Added by Anonymous 94 days ago

Thank you. I never found a way to change the ISO image is already connected to the virtual machine. It is possible to add the ISO image to an already created virtual machine?
I would also like to know if I can install Karesansui on Fedora 13?

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RE: Boot from iso-image - Added by Taizo ITO 91 days ago

ISO image is used just for booting guest OS installation.
Once the guest OS installation has been finished, the ISO image that has been used will be unnecessary.

If you would like ISO image to be used as a virtual CDROM, you need to modify guest configuration file manually.

libvirt's configuration file for guest OS is /etc/opt/hde/libvirt/qemu/<domain>.xml.
Please add new disk within <devices> section as following.
But you can do it at your own risk.

 1  <devices>
 2   :
 3     <disk type='file' device='cdrom'>
 4       <source file='/path/to/iso'/>
 5       <target dev='hdc'/>
 6       <readonly/>
 7     </disk>
 8   :
 9  </devices>

And you may need to execute the below command after modifying configuration file, then reboot guest.

 /opt/hde/bin/virsh define /etc/opt/hde/libvirt/qemu/<domain>.xml

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