Try adding a dummy drive with discard enabled as test before using virt-sparsify --in-place (which needs discard). --- sparsify/test-virt-sparsify-in-place.sh | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/sparsify/test-virt-sparsify-in-place.sh b/sparsify/test-virt-sparsify-in-place.sh index 56311a0..b098c90 100755 --- a/sparsify/test-virt-sparsify-in-place.sh +++ b/sparsify/test-virt-sparsify-in-place.sh @@ -29,7 +29,16 @@ if [ "$(../fish/guestfish get-backend)" = "uml" ]; then exit 77 fi -rm -f test-virt-sparsify-in-place.img +rm -f test-virt-sparsify-in-place.img test-virt-sparsify-in-place-test.img + +if ! ../fish/guestfish \ + disk-create test-virt-sparsify-in-place-test.img raw 200K : \ + add-drive test-virt-sparsify-in-place-test.img readonly:false discard:enable : \ + run; then + rm -f test-virt-sparsify-in-place-test.img + echo "$0: skipping test because discard is not supported" + exit 77 +fi # Create a filesystem, fill it with data, then delete the data. Then # prove that sparsifying it reduces the size of the final filesystem. @@ -66,4 +75,4 @@ if [ $size_after -gt 15000 ]; then exit 1 fi -rm test-virt-sparsify-in-place.img +rm test-virt-sparsify-in-place.img test-virt-sparsify-in-place-test.img -- 1.8.3.1