物理パーティションをCore Storageに変換する方法

Boot Campを利用するためにCore Storage論理ボリュームを物理パーティションに戻していました。

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Parallels Desktopに移行するのを機に、一度変換したパーティションをCore Storageに戻してみました。

Core Storage変換の流れ

操作にはターミナルを使います。現在の状況は以下のようになっています。

mac:~ user$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *251.0 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS Macintosh HD            250.1 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

ボリューム名を確認し、Core Storageに変換します。

mac:~ user$ diskutil cs convert "Macintosh HD"
Started CoreStorage operation on disk0s2 Macintosh HD
Resizing disk to fit Core Storage headers
Creating Core Storage Logical Volume Group
Reviewing boot support loaders
Attempting to unmount disk0s2
Switching disk0s2 to Core Storage
Couldn't unmount disk0s2; converted volume won't appear until it's unmounted
Core Storage LVG UUID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
Core Storage PV UUID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
Core Storage LV UUID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
Finished CoreStorage operation on disk0s2 Macintosh HD

再起動すると、変換が完了しています。

mac:~ user$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *251.0 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage Macintosh HD            250.1 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
/dev/disk1 (internal, virtual):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           +249.8 GB   disk1
                                 Logical Volume on disk0s2
                                 XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
                                 Unencrypted
mac:~ user$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
    =========================================================
    Name:         Macintosh HD
    Status:       Online
    Size:         250140434432 B (250.1 GB)
    Free Space:   18882560 B (18.9 MB)
    |
    +-< Physical Volume XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk0s2
    |   Status:   Online
    |   Size:     250140434432 B (250.1 GB)
    |
    +-> Logical Volume Family XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
        ----------------------------------------------------------
        Encryption Type:         None
        |
        +-> Logical Volume XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
            ---------------------------------------------------
            Disk:                  disk1
            Status:                Online
            Size (Total):          249769230336 B (249.8 GB)
            Revertible:            Yes (no decryption required)
            LV Name:               Macintosh HD
            Volume Name:           Macintosh HD
            Content Hint:          Apple_HFS

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