mke2fs: reserved online resize blocks not supported on non-sparse filesystem
./test.img: Attempt to read block from filesystem resulted in short read while opening filesystem
features: Filesystem not open
 
../e2fsck/e2fsck: Attempt to read block from filesystem resulted in short read while trying to open ./test.img
Could this be a zero-length partition?
Exit status is 8

../misc/dumpe2fs: Attempt to read block from filesystem resulted in short read while trying to open ./test.img
Couldn't find valid filesystem superblock.