}
rbd remove $gen || true
-rbd-nbd unmap $dev || true
+sudo rbd-nbd unmap $dev || true
#read test
dd if=/dev/urandom of=$data bs=1M count=$size
rbd --no-progress import $data $gen
-rbd-nbd --device $dev map $gen
-[ "`dd if=$data bs=1M | md5sum`" != "`dd if=$dev bs=1M | md5sum`" ] && false
+sudo rbd-nbd --device $dev map $gen
+[ "`dd if=$data bs=1M | md5sum`" != "`sudo dd if=$dev bs=1M | md5sum`" ] && false
#write test
dd if=/dev/urandom of=$data bs=1M count=$size
-dd if=$data of=$dev bs=1M
+sudo dd if=$data of=$dev bs=1M
sync
[ "`dd if=$data bs=1M | md5sum`" != "`rbd --no-progress export $gen - | md5sum`" ] && false
#trim test
-mkfs.ext4 $dev # better idea?
+sudo mkfs.ext4 $dev # better idea?
sync
info=`rbd du $gen | tail -n 1`
[ "`echo $info | awk '{print $2}'`" == "`echo $info | awk '{print $3}'`" ] && false
-rbd-nbd unmap $dev
+sudo rbd-nbd unmap $dev
popd
rm -rf rbd_nbd_test