如何在 Mac 上将 SD 格式化为 FAT32？

以下是从命令行运行的（即Terminal.app或等效的）。

% diskutil list

# this will get you the information needed to complete the next command.
# you should get something like the following: 
#  NOTE the '/dev/disk4' is the important part:

/dev/disk4 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *31.9 GB    disk4
   1:       Microsoft Basic Data SOMENAME                31.7 GB    disk4s1

-- OR MAYBE THIS: --

/dev/disk4 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *63.9 GB    disk4
   1:               Windows_NTFS                         63.8 GB    disk4s1

知道 SD 卡的位置（在本例中为 /dev/disk4）允许您使用eraseDisk动词来格式化驱动器/卷diskutil：

% sudo diskutil eraseDisk FAT32 SOMENAME GPT disk4
Started erase on disk4
Unmounting disk
Creating the partition map
Waiting for partitions to activate
Formatting disk4s2 as MS-DOS (FAT32) with name SOMENAME
512 bytes per physical sector
/dev/rdisk4s2: 61891008 sectors in 1934094 FAT32 clusters (16384 bytes/cluster)
bps=512 spc=32 res=32 nft=2 mid=0xf8 spt=32 hds=255 hid=411648 drv=0x80 bsec=61921280 bspf=15111 rdcl=2 infs=1 bkbs=6
Mounting disk
Finished erase on disk4

## To Confirm:  

% diskutil list disk4
/dev/disk4 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *31.9 GB    disk4
   1:                        EFI EFI                     209.7 MB   disk4s1
   2:       Microsoft Basic Data SOMENAME                31.7 GB    disk4s2

请注意，命令GPT中的diskutil eraseDisk意思是GUID 分区表；如果您更喜欢主引导记录，只需将上面的命令更改为以下命令：

% diskutil eraseDisk FAT32 SOMENAME MBR disk4