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I have an interesting case on an iMac. It has a fusion drive and at some point it stoped booting up. Booting up in single-user mode, I tried to mount the boot partition but it gave an error "permission denied" (though it's not encrypted). I rebooted from an installation media and tried to use diskutil to check for errors. Repairing the volume failed after it attempted to resize the volume with the message "resize support required, such as HFS+ with Journaling enabled". I checked the file system and indeed, it wasn't JOURNALED. The "Enable Journaling" option in disk utility wasn't available despite having unmounted the volume. Terminal was also of no help since the "diskutil enableJournal" doesn't seem to work on core storage volumes.

So my question is: Is it possible to reenable journaling on a CoreStorage logical volume?

Diskutil output:

Administrators-iMac:~ admin$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage Macintosh HD            999.3 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

/dev/disk1 (internal):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                         24.0 GB    disk1
   1:                        EFI EFI                     314.6 MB   disk1s1
   2:          Apple_CoreStorage Macintosh HD            23.6 GB    disk1s2
   3:                 Apple_Boot Boot OS X               134.2 MB   disk1s3

/dev/disk2 (internal, virtual):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           +1.0 TB     disk2
                                 Logical Volume on disk1s2, disk0s2
                                 2467C7ED-B641-4F8A-90B1-AC9F2454D2CC
                                 Unencrypted

Diskutil cs list output:

Administrators-iMac:~ admin$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 28A4A3C1-E63B-4613-A15F-0B4A5E7980EB
    =========================================================
    Name:         Macintosh HD
    Status:       Online
    Size:         1022898851840 B (1.0 TB)
    Free Space:   298684416 B (298.7 MB)
    |
    +-< Physical Volume F49340A2-815F-4710-9780-7567582C815E
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk1s2
    |   Status:   Online
    |   Size:     23553724416 B (23.6 GB)
    |
    +-< Physical Volume 899749E3-2E9E-4F73-86AA-5DE7525C15B7
    |   ----------------------------------------------------
    |   Index:    1
    |   Disk:     disk0s2
    |   Status:   Online
    |   Size:     999345127424 B (999.3 GB)
    |
    +-> Logical Volume Family D014E2BE-20A4-4EB1-ABBF-57DF8DBF7EDC
        ----------------------------------------------------------
        Encryption Type:         None
        |
        +-> Logical Volume 2467C7ED-B641-4F8A-90B1-AC9F2454D2CC
            ---------------------------------------------------
            Disk:                  disk2
            Status:                Online
            Size (Total):          1021994057728 B (1.0 TB)
            Revertible:            No
            LV Name:               Macintosh HD
            Volume Name:           Macintosh HD
            Content Hint:          Apple_HFS
            LVG Type:              Sparse

First Aid Error:

Checking for overcommitted space in Logical Volume Group

Fixing size of logical volume to fill logical volume group.

File system resize support required, such as HFS+ with Journaling enabled.
Operation failed…
  • Would you be amenable to posting diskutil list and diskutil cs list? – bmike Sep 3 '17 at 15:29
  • posted the outputs – Tim Sep 3 '17 at 16:42

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