qcow2-copy.sh

   1 #!/bin/bash
   2
   3 image=${1}
   4 uuid=${2}
   5 from=${3}
   6 to=${4}
   7
   8 i=0
   9
  10 tmp_dir=$(mktemp -d)
  11
  12 while 1; do
  13     if [ ! -f "/dev/nbd${i}"]; then
  14         break
  15     fi
  16     i=((i + 1))
  17 done
  18
  19 qemu-nbd --connect="/dev/nbd${i}" "${image}"
  20
  21 mount UUID="${uuid}" "${tmp_dir}"
  22
  23 cp -R -v "${from}" "${tmp_dir}${to}"
  24
  25 if umount "${tmp_dir}"; then
  26     rm -f -d "${tmp_dir}"
  27 fi
  28
  29