Mac下格式化磁盘空间

Mac下格式化磁盘空间

插上SD卡，查看挂载卷只有79M的存储空间

$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.3 GB   disk0
   1:                        EFI EFI                     314.6 MB   disk0s1
   2:                 Apple_APFS Container disk1         500.0 GB   disk0s2

/dev/disk1 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +500.0 GB   disk1
                                 Physical Store disk0s2
   1:                APFS Volume 未命名2 - 数据          400.6 GB   disk1s1
   2:                APFS Volume Preboot                 573.2 MB   disk1s2
   3:                APFS Volume Recovery                1.1 GB     disk1s3
   4:                APFS Volume VM                      8.6 GB     disk1s4
   5:                APFS Volume 未命名2                 23.4 GB    disk1s5
   6:              APFS Snapshot com.apple.os.update-... 23.4 GB    disk1s5s1

/dev/disk2 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *64.0 GB    disk2
   1:                 DOS_FAT_32 NO NAME                 79.7 MB    disk2s1
   2:                      Linux                         700.4 MB   disk2s2
   3:                 Linux_Swap                         511.7 MB   disk2s3
   4:                      Linux                         62.7 GB    disk2s4

使用命令格式化未 FAT32 格式:

sudo diskutil eraseDisk FAT32 NAME MBRFormat /dev/disk2

再次查看磁盘分区，已恢复到64G

$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.3 GB   disk0
   1:                        EFI EFI                     314.6 MB   disk0s1
   2:                 Apple_APFS Container disk1         500.0 GB   disk0s2

/dev/disk1 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +500.0 GB   disk1
                                 Physical Store disk0s2
   1:                APFS Volume 未命名2 - 数据          400.6 GB   disk1s1
   2:                APFS Volume Preboot                 573.2 MB   disk1s2
   3:                APFS Volume Recovery                1.1 GB     disk1s3
   4:                APFS Volume VM                      12.9 GB    disk1s4
   5:                APFS Volume 未命名2                 23.4 GB    disk1s5
   6:              APFS Snapshot com.apple.os.update-... 23.4 GB    disk1s5s1

/dev/disk2 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *64.0 GB    disk2
   1:                 DOS_FAT_32 NAME                    64.0 GB    disk2s1

[](https://superuser.com/questions/527657/how-do-you-format-a-2-gb-sd-card-to-fat32-preferably-with-disk-utility)