Resolved How do I add back a partition to the Fusion Drive

[milomak]

I experienced a power failure when I was in Bootcamp. When I rebooted againI noticed I could not boot into Bootcamp. But I could access the Bootcamp partition in in Finder and be able to work on files.

So when I went to Disk Utility, I noticed that it states the size of the Fusion Drive as being just bigger than macOS install and completely disregards the Bootcamp partition

Spoiler

diskutil cs list

CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group DD388015-1FFF-4831-9CF2-9CD8367E2742
    =========================================================
    Name:         iMac
    Status:       Online
    Size:         826852675584 B (826.9 GB)
    Free Space:   749568 B (749.6 KB)
    |
    +-< Physical Volume 1CA5E61B-C026-4CF8-8AF4-B7DF7F5F22D2
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk1s2
    |   Status:   Online
    |   Size:     120338849792 B (120.3 GB)
    |
    +-< Physical Volume 8E14E744-451B-416F-A1BB-381DAE3E02EA
    |   ----------------------------------------------------
    |   Index:    1
    |   Disk:     disk0s2
    |   Status:   Online
    |   Size:     706513825792 B (706.5 GB)
    |
    +-> Logical Volume Family 1D47764C-26B0-4C36-93A7-323A023C19A6
        ----------------------------------------------------------
        Encryption Type:         None
        |
        +-> Logical Volume 94350E47-4BD3-48A2-B9DC-454AACAF0083
            ---------------------------------------------------
            Disk:                  disk2
            Status:                Online
            Size (Total):          821000273920 B (821.0 GB)
            Revertible:            No
            LV Name:               Macintosh HD
            Volume Name:           Macintosh HD
            Content Hint:          Apple_HFS
            LVG Type:              Fusion, Sparse

$ diskutil list

/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *2.0 TB     disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage iMac                    706.5 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:       Microsoft Basic Data BOOTCAMP                1.3 TB     disk0s4

/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 iMac                    120.3 GB   disk1s2
   3:                 Apple_Boot Boot OS X               134.2 MB   disk1s3
   4:                  Apple_HFS Boot OS X               134.2 MB   disk1s4
   5:           Linux Filesystem boot                    73.4 MB    disk1s5
   6:           Linux Filesystem                         440.4 MB   disk1s6

/dev/disk2 (internal, virtual):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           +821.0 GB   disk2
                                 Logical Volume on disk1s2, disk0s2
                                 94350E47-4BD3-48A2-B9DC-454AACAF0083
                                 Unencrypted Fusion Drive

What command do I need to issue to add the Bootcamp partition back into Fusion Drive?

 

[milomak]

If anyone is running Bootcamp, could you post your diskutil cs list and diskutil list please

 

[milomak]

Solution

That is to say i can boot into my Windows again.

It seems though diskutil (maybe by default?) doesn't pick up the BOOTCAMP partition as part of the logical drive

Anyway,the most important thing I was able to boot my BOOTCAMP/Windows partition after it was gone/lost/ disappeared from the boot options