download e.g. an ISO image of 600MB save it to a volume that has for example 20GB free space (I would expect no problem) -> indeed this download can fail due to lack of space on the temp volume I would prefer a solution like Go!Zilla has. A temp file is created on the initially choosen volume. This is a major issue especially for low equipped clients in networks that operate with small local disks.
*** This bug has been marked as a duplicate of 69938 ***