[Bug 814222] Re: kvm cannot use vhd files over 127GB

[Serge Hallyn]

This could be tough to reproduce, as I don't seem to have a way to
create a vpc image > 127G in the first place:

root at ip-10-36-186-165:/mnt# qemu-img create -f vpc vpc2.img 130G
Formatting 'vpc2.img', fmt=vpc size=139586437120 
qemu-img: The image size is too large for file format 'vpc'

root at ip-10-36-186-165:/mnt# qemu-img create -f raw raw1.img 130G
Formatting 'raw1.img', fmt=raw size=139586437120
root at ip-10-36-186-165:/mnt# qemu-img convert -f raw -O vpc raw1.img vpc1.img
qemu-img: The image size is too large for file format 'vpc'

root at ip-10-36-186-165:/mnt# qemu-img create -f vpc vpc1.img 127G
Formatting 'vpc1.img', fmt=vpc size=136365211648
root at ip-10-36-186-165:/mnt# qemu-img convert -f vpc -O raw vpc1.img raw2.img
root at ip-10-36-186-165:/mnt# qemu-img info raw2.img
image: raw2.img
file format: raw
virtual size: 127G (136365219840 bytes)
disk size: 0

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https://bugs.launchpad.net/bugs/814222

Title:
  kvm cannot use vhd files over 127GB

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