Cannot copy a large file; space available
FAT32 has a maximum size for any individual file: 4 GB.

You can split the file into &lt;4 GB segments, copy to the FAT32 disk, then recombine them once you've copied them off the FAT32 disk to somewhere else.



# make 4 GB file segments
truncate -s 7.8G /path/to/file
split --bytes=3.9GB --numeric-suffixes /path/to/file /path/to/file.part
# copy to disk
cp /path/to/file.part* /Volumes/yourFATdisk/




# copy from disk
cp /Volumes/yourFATdisk/file.part* /path/to/
# combine segments
cat /path/to/file.part* &gt; /path/to/file


Adapted from https://superuser.com/questions/440509/getting-around-the-fat32-4gb-file-size-limit