WARNING: Image format was not specified for '/mnt/space/cucm12.img' and probing guessed raw.
Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
Specify the 'raw' format explicitly to remove the restrictions.
#you should manually specify the format
qemu-system-x86_64 -boot once=d -smp 4 -machine pc-1.3 -vnc :1 -m 8096 -drive file=/var/lib/vz/template/iso/cucum86.img,format=raw,if=virtio -net nic,model=virtio -net tap,ifname=tap2019,script=no,downscript=no
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