[one-users] Do not use qcow image format with latest ONE

[Olivier Sallou]

Hi,
I also face this issue on an Ubuntu 10.10 which uses latest libvirt  etc...

did you create a bug at opennebula ?

Olivier


Le 10/23/10 5:37 PM, Rangababu Chakravarthula a écrit :
> Rich
> It is libvirt that adds that flag. I am not exactly sure, starting 
> which version it started to do this. It wasn't doing this in libvirt 
> 0.75. I think starting 0.8 it has started to do this.
>
> Unless specified otherwise, by default libvirt marks driver type as 
> "raw" which gets passed as format flag to kvm. Because of this qcow 
> virtual size is not exposed to the guest.
>
> OpenNebula, when it creates the libvirt deployment file, doesn't add 
> any flag. We had to change LibvirtDriver.cc and specifically add 
> type=qcow2 attribute to the driver xml flag, and recompile one.
>
> Here is a post regarding the same.
> http://lists.opennebula.org/htdig.cgi/users-opennebula.org/2010-September/002894.html
>
> Ranga
> On Fri, Oct 22, 2010 at 1:47 PM, Rich Wellner <rkw at objenv.com 
> <mailto:rkw at objenv.com>> wrote:
>
>     Using RC1 I just ran across a bug that was reported in August. 
>     I've included the text of the email below.  I just wanted to give
>     a heads up that it's still there.  The weird part is that I have
>     no idea how it got triggered.  I was able to run images yesterday
>     until about noon.  Started playing around with some other images
>     and from there on out, nothing would start because one kept
>     requesting the raw flag, including images that had previously been
>     working.
>
>
>     --------------------- PREVIOUS REPORT BELOW -----------------------
>
>     Hello,
>
>     That is really weird as we have not added a format parameter to the
>     deployment file we use to create a VM. Could you please send us
>     $ONE_LOCATION/var/<vm_id>/deployment.0 of one of the VM's that fail?
>
>     Thank you
>
>     On Tue, Aug 24, 2010 at 2:17 PM, Martin Kopta<martin at kopta.eu  <http://lists.opennebula.org/listinfo.cgi/users-opennebula.org>>  wrote:
>     >/  Hello,
>     />/
>     />/    I am playing with latest checkout of ONE (branch one-2.0) and I found out
>     />/  that my old images aren't working anymore (getting 'no bootable device' on
>     />/  display). They were of type 'qcow2' which was no problem before (circa 3 weeks
>     />/  ago). Anyway, I noticed that 'kvm' process does have 'format=raw' [1], so I
>     />/  converted my images [2] to raw and it seems to be working now.
>     />/
>     />/  Hope this helps someone.
>     />/
>     />/  Best regards,
>     />/    dum8d0g
>     />/
>     />/  [1] /usr/bin/kvm -S -M pc-0.12 -enable-kvm -m 512 -smp 1,sockets=1,cores=1,threads=1 -name one-15 -uuid cea35f06-61cc-c87c-75bc-03e8c3cb637d -nodefaults -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/one-15.monitor,server,nowait -mon chardev=monitor,mode=readline -rtc base=utc -no-acpi -boot c -drive file=/home/one/vms/15/images/disk.0,if=none,id=drive-ide0-0-0,boot=on,format=raw -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -drive file=/home/one/vms/15/images/disk.1,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -device rtl8139,vlan=0,id=net0,mac=02:00:c0:a8:7a:05,bus=pci.0,addr=0x3 -net tap,fd=41,vlan=0,name=hostnet0 -chardev pty,id=serial0 -device isa-serial,chardev=serial0 -usb -vnc0.0.0.0:0  <http://0.0.0.0:0>  -vga cirrus -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4
>     />/  [2] qemu-img convert image.qcow2 -O raw image.raw
>     />
>
>
>
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