6 export title="Case Study: copying sparse images"
9 remember 'qemu-img create -f qcow2 src.qcow2 100m'
10 remember 'for i in $(seq 0 2 99); do qemu-io -f qcow2' \
11 '-c "w ${i}m 1m" src.qcow2; done >/dev/null'
12 remember 'cat ./convert'
13 remember './convert zeromode=none'
15 pushd $talkdir/fastzero.d >/dev/null
16 echo "Based on https://www.redhat.com/archives/libguestfs/2019-August/msg00322.html"