yet another bootcamp problem after yosesmite

Question

Level 1

10 points

yet another bootcamp problem after yosesmite

Hello all,

i'm one of the lucky people who have broken the win partition (win 8.1) with the update to last osx update. (the partition is/was of 50gb)

here are my output (i read some threads but i don't get what i can do after those two commands).

stefano@~$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *251.0 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage                         200.0 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:       Microsoft Basic Data                         20.0 GB    disk0s4
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           *199.6 GB   disk1
                                 Logical Volume on disk0s2
                                 E1AB8035-EA99-4BE4-AFF7-B634DDA4F904
                                 Unencrypted

stefano@~$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group C9468AA2-59FF-4469-A02B-2D0EE8764B38
    =========================================================
    Name:         Macintosh HD
    Status:       Online
    Size:         200000000000 B (200.0 GB)
    Free Space:   18993152 B (19.0 MB)
    |
    +-< Physical Volume E33CC934-6863-442C-99DA-5E3FEC5C1A3C
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk0s2
    |   Status:   Online
    |   Size:     200000000000 B (200.0 GB)
    |
    +-> Logical Volume Family 4968BB0C-61CE-4F2C-94EA-D3164F4E87DB
        ----------------------------------------------------------
        Encryption Status:       Unlocked
        Encryption Type:         None
        Conversion Status:       NoConversion
        Conversion Direction:    -none-
        Has Encrypted Extents:   No
        Fully Secure:            No
        Passphrase Required:     No
        |
        +-> Logical Volume E1AB8035-EA99-4BE4-AFF7-B634DDA4F904
            ---------------------------------------------------
            Disk:                  disk1
            Status:                Online
            Size (Total):          199628685312 B (199.6 GB)
            Conversion Progress:   -none-
            Revertible:            Yes (no decryption required)
            LV Name:               Macintosh HD
            Volume Name:           Macintosh HD
            Content Hint:          Apple_HFS

tefano@~$ sudo gpt -vv -r show /dev/disk0
Password:
gpt show: /dev/disk0: mediasize=251000193024; sectorsize=512; blocks=490234752
gpt show: /dev/disk0: Suspicious MBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: /dev/disk0: Sec GPT at sector 490234751
      start       size  index  contents
          0          1         MBR
          1          1         Pri GPT header
          2         32         Pri GPT table
         34          6
         40     409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
     409640  390625000      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
  391034640    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
  392304176   58868176
  451172352   39061504      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
  490233856        863
  490234719         32         Sec GPT table
  490234751          1         Sec GPT header

stefano@~$ sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null |hexdump -C
00000000  aa 05 2e 06 26 05 1b 06  84 06 27 07 c4 06 93 06  |....&.....'.....|
00000010  3c 06 d4 05 f1 05 a7 05  6c 05 82 05 d7 05 92 05  |<.......l.......|
00000020  18 06 dd 05 d8 04 87 04  75 05 07 06 fb 05 42 06  |........u.....B.|
00000030  48 06 6d 06 6d 06 6f 06  26 06 cc 05 70 05 fa 07  |H.m.m.o.&...p...|
00000040  a9 08 ce 08 f3 08 ad 08  be 08 77 09 2a 09 7e 08  |..........w.*.~.|
00000050  f5 08 2c 09 ed 08 e7 09  27 09 f3 08 93 09 90 09  |..,.....'.......|
00000060  fe 08 23 09 bc 09 22 09  e6 08 0a 0a e9 09 a2 09  |..#...".........|
00000070  4b 09 50 09 0c 0a 96 09  31 09 b1 09 79 09 21 0a  |K.P.....1...y.!.|
00000080  e0 09 41 0a e5 0a 83 09  ad 09 87 09 dd 0a f7 09  |..A.............|
00000090  6f 09 03 0b aa 09 37 0a  3d 0a b6 0a f5 09 bc 0a  |o.....7.=.......|
000000a0  33 0a 7d 0b 2c 0c 45 0b  b5 0a 57 0a 05 0b 56 0c  |3.}.,.E...W...V.|
000000b0  d9 0a 20 0c 17 0b 9f 0b  4f 0b 5e 0b dd 0a d1 0a  |.. .....O.^.....|
000000c0  2e 0a 68 0b cf 0a 6e 0c  62 0d 8b 0b 86 0b 4d 0c  |..h...n.b.....M.|
000000d0  69 0c 3e 0d 3b 0c a0 0c  ae 0b 69 0c 3f 0c 00 00  |i.>.;.....i.?...|
000000e0  00 00 7c 1a 85 1b be 17  ba 18 83 16 1f 18 74 14  |..|...........t.|
000000f0  f3 16 02 14 40 12 15 0b  00 0e c5 10 78 14 c8 13  |....@.......x...|
00000100  3b 13 7a 12 f5 12 45 14  da 14 4e 11 20 13 63 11  |;.z...E...N. .c.|
00000110  2d 12 d8 11 49 11 b2 11  f0 10 79 11 c0 0f 49 11  |-...I.....y...I.|
00000120  55 0f 35 10 16 0f 46 10  d9 0e d9 0e cc 0e 27 0f  |U.5...F.......'.|
00000130  d9 0e 08 0e c6 0e d2 0c  a8 0d 77 0d 89 0d 2c 0d  |..........w...,.|
00000140  2a 0c 08 0d 15 0c 54 0c  cc 0c ec 0b f4 0b db 0c  |*.....T.........|
00000150  1a 0c 50 0b 58 0c 4f 0b  f5 0b 39 0c 3f 0b 63 0b  |..P.X.O...9.?.c.|
00000160  71 0b 66 0b 78 0b da 0a  38 0a 74 0a bc 0a 35 0a  |q.f.x...8.t...5.|
00000170  61 0a a7 0a 81 0a d0 09  9b 0a 0d 0a 68 0a ad 09  |a...........h...|
00000180  f4 09 b2 09 13 0a 76 09  7c 09 1c 09 61 09 4d 09  |......v.|...a.M.|
00000190  4d 09 11 09 ed 08 59 09  08 09 82 08 4c 08 72 08  |M.....Y.....L.r.|
000001a0  5b 08 88 06 65 05 7e 05  4d 06 81 05 d7 05 9f 05  |[...e.~.M.......|
000001b0  cc 05 20 05 f2 04 c8 04  3a 05 16 05 65 05 26 05  |.. .....:...e.&.|
000001c0  09 05 0e 05 53 05 71 05  62 05 7d 07 b6 07 8c 07  |....S.q.b.}.....|
000001d0  39 07 69 07 07 07 6c 07  56 07 86 07 90 07 79 06  |9.i...l.V.....y.|
000001e0  1d 06 f5 04 db 04 84 04  25 04 81 04 22 04 1c 04  |........%..."...|
000001f0  21 04 2d 04 ee 03 ee 03  1f 04 e0 03 b8 03 b8 03  |!.-.............|
00000200

what can i do? i can't format windows, i mean, i've some data there that are just there and i don't have a backup.

adding details

MacBook Pro with Retina display, Mac OS X (10.0.x)

Posted on Oct 21, 2014 7:47 AM

Reply

Answer 1

Loner T

Level 9

59,513 points

Oct 21, 2014 2:36 PM in response to elstefano

Look at the output of diskutil list. Recovery HD is not shown in Disk Utility. If you need the 50GB added to the main partition, you will have to mergePartitions from the end of OS X all the way till the end of the disk. which means you will not be able to run local Recovery.

You can get it back by re-installing OS X, which does not alter any data, but just the OS files. Once you have recovery HD back, then run Bootcamp Assistant and install Windows.

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Answer 2

elstefano Author

Level 1

10 points

Oct 21, 2014 11:05 PM in response to Loner T

but if i reinstall (via recovery on boot) will the 50 be reallocated? I don't want to install win on boot camp anymore

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Answer 3

Loner T

Level 9

59,513 points

Oct 22, 2014 5:19 AM in response to elstefano

Since you have Yosemite and a CoreStorage volume, the simplest method is

1. Backup your current OS X files via Time Machine.

2. Run Internet Recovery (Command+Opt+R) with the spinning globe startup.

3. Use DU to erase the internal drive completely and reformat. This may not work based on my experience with Yosemite bugs in DU. The workaround is to use CLI using Can't format former Boot Camp partition as a reference.

4. Re-install OSX Yosemite with a new Admin account.

5. Run Migration Assistant and restore accounts, applications, etc. This preserves the current disk layout. You can now delete the temporary admin account created in step 4.

6. If you choose a "full" restore, it will put back the volume as it exists now, which is not what you want.

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Answer 4

elstefano Author

Level 1

10 points

Oct 22, 2014 5:44 AM in response to Loner T

so, to have the system back as a brand new one i've to reinstall everything from a time machine and do the DU stuff.

there's no easier way? (this operation takes forever usually)
what if i install windows with bootcamp and then erase that partition? will it fix it?

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Answer 5

Loner T

Level 9

59,513 points

Oct 22, 2014 6:24 AM in response to elstefano

elstefano wrote:

what if i install windows with bootcamp and then erase that partition? will it fix it?

You can try using BA, but since you have a "hanging" partition, BA will not let you partition further and install Bootcamp. If you run BA, do you see an option to Remove Windows? The BA/DU interaction in Yosemite is very fragile now. If you did a clean install and started the restore late at night before you retire for the night, it may be an option to consider. The current state is a "mess", to put it mildly.

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Answer 6

elstefano Author

Level 1

10 points

Oct 22, 2014 6:29 AM in response to Loner T

nope, i did not reinstall anything.

i guess i got what i've to do (still i'll do over the weekend), one question only.

when i install from sckratch the OSX i'll not do the migration for TM there but only when the system is installed (which requires to create and additonal admin etc)?

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