Two of my USB sticks (Lexar and PNY, both 32 GB) are not getting recognized correctly by macOS Sierra. Both worked before (one formatted with NTFS, the other with FAT32); they were then used as installation media for upgrading a couple of MacBooks to macOS Sierra.
They have since been tested, getting reformatted by Linux as well as Windows 7 between tests, but the following output is always the same using
/dev/disk3 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: Apple_partition_scheme *32.0 GB disk3
1: Apple_partition_map 4.1 KB disk3s1
2: Apple_HFS 311.3 KB disk3s2
After plugging them into the MacBook they are still working on Windows and Linux (they were tested by writing the whole stick and verifying the data). I also deleted the partitions using
fdisk in Linux.
Is there a way to repair this behavior? And if not, is there a way I can redefine how the partitions are getting assigned by macOS so that I can still manually mount them?