Previous questions/answers dealt with the simple case of a single partition on the USB disk that was just overwritten with
dd. Also it looks like the disk utility gui doesn't allow creation of multiple partitions on a usb drive now. Anyway:
I've created 3 partitions on my stick, with the command:
diskutil partitionDisk disk4 3 APM hfsx d1 1.35G ExFat d2 1.25G ExFat d3 13.0G.
This actually left me with 5 partitions:
Finished partitioning on disk4 /dev/disk4 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: Apple_partition_scheme *16.0 GB disk4 1: Apple_partition_map 32.3 KB disk4s1 2: Apple_Boot Boot OS X 134.2 MB disk4s2 3: Apple_HFSX d1 1.2 GB disk4s3 4: Windows_NTFS d2 1.3 GB disk4s4 5: Windows_NTFS d3 13.4 GB disk4s5
I've got a bootable linux ISO. Which device should I
dd it to? The original target was supposed to be the 1.2Gb partition that is marked disk4s3. I don't know what the other stuff before it is. Should I just dd to /dev/disk4s1 and let it overwrite stuff after it?