I have a strange problem in El Capitan.

I have a second internal drive which is divided into two partitions: one Fat32 and one HFS+ Journaled.

I do not see this drive in console when I type diskutil list /, but I can see the HFS+ partition in the system and I can use it. I do not see Fat32 partition.

May it be a permission problem? If yes, how can it be fixed right now? Disk Utility is not supporting this option anymore. I do not have Windows installed.

  • FAT32 disks do not support permissions and Disk Utility never offered Verify Disk Permissions on them anyway. Jan 13 '16 at 17:01
  • Could you edit the question to show what diskutil list shows for the disk in question? if it's the boot disk, use diskutil list disk0 - but since it's the second you might need 1 or 2 added to show us the overall idea of what's happening / won't show you anything helpful as your question initially reads...
    – bmike
    Jan 13 '16 at 17:44

If you enter diskutil list / in Terminal only partitions of the boot device are visible.

The proper command to enter is just diskutil list.

With the disk identifier diskX found above try to verify the disk and the volume:

diskutil verifyDisk /dev/diskX
diskutil verifyVolume /dev/diskXsY

If verification was successful try to make a mountpoint:

sudo mkdir /Volumes/EXT_HD_FAT32

and try to mount the partition there:

sudo mount -t msdos /dev/diskXsY /Volumes/EXT_HD_FAT32/

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