Hard Drive Partition Issues

[jakofharts7]

Hello all,

I have a late-2012 iMac with a 3TB Fusion Drive. A couple of days ago, I decided to back up everything and install a fresh copy of macOS. My system shipped with Mountain Lion and I had done in-place upgrades for 4 releases and decided to wipe everything and start over. I have a functioning install of macOS Sierra on my system now, but am scared I might have done something wonky with my HD. In Disk Utility, I see my HD with 2 partitions a 337GB BOOTCAMP partition which I set up, and a 2.77TB Macintosh HD partition. Everything looks OK.

However, when I run diskutil list, I see that something doesn't look quite right.

Spoiler

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *3.0 TB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage Macintosh HD 1.9 TB disk0s2

3: Apple_Boot Recovery HD 650.1 MB disk0s3

4: Microsoft Basic Data BOOTCAMP 338.1 GB disk0s4

5: Apple_CoreStorage Macintosh HD 801.4 GB disk0s5

6: Apple_Boot Boot OS X 134.2 MB disk0s6


/dev/disk1 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_CoreStorage Macintosh HD 121.0 GB disk1s2

3: Apple_Boot Boot OS X 134.2 MB disk1s3


/dev/disk2 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: FDisk_partition_scheme *31.9 GB disk2

1: Windows_FAT_32 SDCARD 31.9 GB disk2s1


/dev/disk3 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Macintosh HD +2.8 TB disk3

Logical Volume on disk1s2, disk0s2, ...

D6807E65-EF0C-49CD-9C8D-08BF8557E678

Unencrypted Fusion Drive


/dev/disk4 (external, physical):

#: TYPE NAME SIZE IDENTIFIER

0: FDisk_partition_scheme *15.5 GB disk4

1: Apple_HFS Install macOS Sierra 15.5 GB disk4s1


/dev/disk5 (external, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *3.0 TB disk5

1: EFI EFI 314.6 MB disk5s1

2: Apple_HFS Seagate Backup+ 3.0 TB disk5s2


/dev/disk6 (disk image):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_partition_scheme +100.7 MB disk6

1: Apple_partition_map 32.3 KB disk6s1

2: Apple_HFS DiskDrill 100.7 MB disk6s2

I see two Macintosh HD partitions listed, one at 1.9TB and one at 801.4GB. I'm also unsure why I have a Apple_Boot Recovery HD and a Apple_Boot Boot OS X partition. Should both of these be present?

Does this diskutil look out of the ordinary? I'm unsure if I have a problem I need to look into fixing, or if there is a normal explanation why I have two Macintosh HD partitions listed.

Thanks in advance for any help anyone can provide.

 

[Weaselboy]

Nothing is wrong. You have physical disks 0 and 1 combined into the Fusion drive virtual disk3. Totally normal Fusion setup.