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

[Martin Kopta]

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 -vnc 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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