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Q: Windows partition corrupt or unbootable after Yosemite upgrade

My windows bootcamp partition no longer shows up as an option to boot to when hitting "alt/option" while starting.

Reads in disk utility as "disk0s4" and says can't repair disk.  How do I recover or backup files?

 

Last login: Sun Jul 12 15:04:51 on console

tests-MacBook-Pro:~ johntcreedonjr1$ diskutil list

/dev/disk0

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *320.1 GB   disk0

   1:                        EFI EFI                     209.7 MB   disk0s1

   2:          Apple_CoreStorage                         135.1 GB   disk0s2

   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

   4:       Microsoft Basic Data                         159.7 GB   disk0s4

/dev/disk1

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                  Apple_HFS Macintosh HD           *134.8 GB   disk1

                                 Logical Volume on disk0s2

                                 0EB5178D-45CE-4F4C-B367-86A984984B26

                                 Unencrypted

/dev/disk2

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:     Apple_partition_scheme                        *16.8 MB    disk2

   1:        Apple_partition_map                         32.3 KB    disk2s1

   2:                  Apple_HFS Flash Player            16.8 MB    disk2s2

tests-MacBook-Pro:~ johntcreedonjr1$ diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group A976A795-6083-435C-9497-53BD967AAE54

    =========================================================

    Name:         Macintosh HD

    Status:       Online

    Size:         135135137792 B (135.1 GB)

    Free Space:   18911232 B (18.9 MB)

    |

    +-< Physical Volume CF9A9FD2-9DA9-49B2-9467-EB4F541DA9E6

    |   ----------------------------------------------------

    |   Index:    0

    |   Disk:     disk0s2

    |   Status:   Online

    |   Size:     135135137792 B (135.1 GB)

    |

    +-> Logical Volume Family 27AB8FB5-EA5B-41E9-8703-42FFC7B025BD

        ----------------------------------------------------------

        Encryption Status:       Unlocked

        Encryption Type:         None

        Conversion Status:       NoConversion

        Conversion Direction:    -none-

        Has Encrypted Extents:   No

        Fully Secure:            No

        Passphrase Required:     No

        |

        +-> Logical Volume 0EB5178D-45CE-4F4C-B367-86A984984B26

            ---------------------------------------------------

            Disk:                  disk1

            Status:                Online

            Size (Total):          134763905024 B (134.8 GB)

            Conversion Progress:   -none-

            Revertible:            Yes (no decryption required)

            LV Name:               Macintosh HD

            Volume Name:           Macintosh HD

            Content Hint:          Apple_HFS

tests-MacBook-Pro:~ johntcreedonjr1$ sudo gpt -w -r show /dev/disk0

When I tried the sudo commands, I entered the only password I recall having on this computer and it didn't work.  Any idea how I can figure that out as well?  My apologies, as I'm out of my element and don't really have any idea what I am doing here.

MacBook Pro, OS X Yosemite (10.10.1), null

Posted on Jul 18, 2015 1:56 PM

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