Bootcamp not accessible after Yosemite update

Question

So here I start a new thread...What I did: I updated my Mavericks to Yosemite and after installing it my bootcamp partition seemed to be gone! Just possible to boot the Mac partition and I saw that I now have a recovery partition which I didn&#x27;t have yet.In Disk Utility I can see that there is a partition but its called disk0s4 and is inaktive...cant activate it.Due several tries i could manage that while restarting the mac and pressing ALT the Bootcamp Partition came up again but choosing it it says "Operating System is missing"What am I to do now?I really need that data on the BC partition but I can&#x27;t even read the data. Would be very thankful if someone helped me...thanks.Its a MBP 17" mid 2009. On a 500GB Samsung 840 Evo SSD

Loner T · Answer

From OS X Terminal, can you post the text output of the following commands?diskutil listdiskutil cs listsudo gpt -vv -r show /dev/disk0sudo fdisk /dev/disk0Sudo commands require your password, which will not be echoed back. It may also warn you about improper use and potential data loss.

Nosedragon · Answer

Sorry,here are the lists:......-...-Pro:~ ........$ diskutil list/dev/disk0   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:      GUID_partition_scheme                        *500.1 GB   disk0   1:                        EFI EFI                     209.7 MB   disk0s1   2:                  Apple_HFS Macintosh SSD           285.7 GB   disk0s2   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3   4:       Microsoft Basic Data                         207.6 GB   disk0s4.-Pro:~ .........$ diskutil cs listNo CoreStorage logical volume groups found........-Pro:~ ........$ sudo gpt -vv -r show /dev/disk0Password:gpt show: /dev/disk0: mediasize&#x3D;500107862016; sectorsize&#x3D;512; blocks&#x3D;976773168gpt show: /dev/disk0: Suspicious MBR at sector 0gpt show: /dev/disk0: Pri GPT at sector 1gpt show: /dev/disk0: Sec GPT at sector 976773167      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  557988280      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC  558397920    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC  559667456   11716352           571383808  405389312      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7  976773120         15           976773135         32         Sec GPT table  976773167          1         Sec GPT header.........-Pro:~ ......$ sudo fdisk /dev/disk0Disk: /dev/disk0 geometry: 60801/255/63 [976773168 sectors]Signature: 0xAA55         Starting       Ending #: id  cyl  hd sec -  cyl  hd sec [     start -       size]------------------------------------------------------------------------ 1: EE 1023 254  63 - 1023 254  63 [         1 -     409639] &lt;Unknown ID&gt; 2: AF 1023 254  63 - 1023 254  63 [    409640 -  557988280] HFS+         3: AB 1023 254  63 - 1023 254  63 [ 558397920 -    1269536] Darwin Boot *4: 07 1023 254  63 - 1023 254  63 [ 571383808 -  405389312] HPFS/QNX/AUX

Loner T · Answer

You have a gap between GPT3 and GPT4 (as shown by the GPT command output). Can you use Bootcamp partition missing after yosemite installation as a reference and download Testdisk and GPT Fdisk and get a scan with Testdisk started. You can use https://imgur.com/a/PjmnK as a guide for the Testdisk UI flow.

Nosedragon · Answer

is this correct?next enter is the quick searchTestDisk 6.14, Data Recovery Utility, July 2013Christophe GRENIER &lt;grenier@cgsecurity.org&gt;http://www.cgsecurity.orgDisk /dev/rdisk0 - 500 GB / 465 GiB - 976773168 sectors (RO)Current partition structure:     Partition                  Start        End    Size in sectors 1 P EFI System                    40     409639     409600 [EFI System Partition] 2 P Mac HFS                   409640  558397919  557988280 [Macintosh SSD] 3 P Mac Boot               558397920  559667455    1269536 [Recovery HD]No FAT, NTFS, ext2, JFS, Reiser, cramfs or XFS marker 4 P MS Data                571383808  976773119  405389312 [BOOTCAMP] 4 P MS Data                571383808  976773119  405389312 [BOOTCAMP]

Loner T · Answer

Yes, but be aware that you will do a Deeper Search, which can take a while. SSD should be a bit faster. The two listed MS Data entries you have, are the current entries which are not working.

Nosedragon · Answer

It is quite slow.... (quick search)is that enough or should i run until 100%?estDisk 6.14, Data Recovery Utility, July 2013Christophe GRENIER &lt;grenier@cgsecurity.org&gt;http://www.cgsecurity.orgDisk /dev/rdisk0 - 500 GB / 465 GiB - 976773168 sectors (RO)Analyse cylinder 637108224/976773167: 65%check_FAT: Unusual media descriptor (0xf0!&#x3D;0xf8)Warning: number of heads/cylinder mismatches 16 (FAT) !&#x3D; 1 (HD)Warning: number of sectors per track mismatches 32 (FAT) !&#x3D; 1 (HD)EFI System                    40     409639     409600 [EFI]  Mac HFS                   409640  558397919  557988280  Mac HFS                558397920  559667455    1269536Mac HFS                570114268 1128102547  557988280  Mac HFS                 12125992  570114271  557988280  Mac HFS                570114272  571383807    1269536check_FAT: Bad number of sectors per clusterWarning: number of heads/cylinder mismatches 16 (NTFS) !&#x3D; 1 (HD)Warning: number of sectors per track mismatches 2 (NTFS) !&#x3D; 1 (HD)MS Data                578531259  578537432       6174Warning: number of heads/cylinder mismatches 16 (NTFS) !&#x3D; 1 (HD)Warning: number of sectors per track mismatches 2 (NTFS) !&#x3D; 1 (HD)MS Data                578537432  578543605       6174 [Boot]Warning: number of heads/cylinder mismatches 16 (NTFS) !&#x3D; 1 (HD)Warning: number of sectors per track mismatches 2 (NTFS) !&#x3D; 1 (HD)MS Data                578537451  578543624       6174Warning: number of heads/cylinder mismatches 16 (NTFS) !&#x3D; 1 (HD)Warning: number of sectors per track mismatches 2 (NTFS) !&#x3D; 1 (HD)MS Data                578543624  578549797       6174 [Boot]Warning: number of heads/cylinder mismatches 16 (NTFS) !&#x3D; 1 (HD)Warning: number of sectors per track mismatches 2 (NTFS) !&#x3D; 1 (HD)MS Data                578543643  578549816       6174Warning: number of heads/cylinder mismatches 16 (NTFS) !&#x3D; 1 (HD)Warning: number of sectors per track mismatches 2 (NTFS) !&#x3D; 1 (HD)MS Data                578549816  578555989       6174 [Boot]check_FAT: Unusual media descriptor (0xf0!&#x3D;0xf8)Warning: number of heads/cylinder mismatches 2 (FAT) !&#x3D; 1 (HD)Warning: number of sectors per track mismatches 18 (FAT) !&#x3D; 1 (HD)MS Data                578555992  578558871       2880 [EFISECTOR]check_FAT: Unusual media descriptor (0xf0!&#x3D;0xf8)Warning: number of heads/cylinder mismatches 2 (FAT) !&#x3D; 1 (HD)Warning: number of sectors per track mismatches 18 (FAT) !&#x3D; 1 (HD)MS Data                578558872  578561751       2880 [EFISECTOR]Mac HFS                580316100  588704709    8388610 [    D^A]Unknown                605021609 921142066312044 921141461290435check_FAT: Unusual media descriptor (0xf0!&#x3D;0xf8)Warning: number of heads/cylinder mismatches 2 (FAT) !&#x3D; 1 (HD)Warning: number of sectors per track mismatches 36 (FAT) !&#x3D; 1 (HD)MS Data                608137196  608142955       5760Mac HFS                608816208  608816302         95

Loner T · Answer

Please let it continue till 100%. It will then produce a list of unrecoverable partitions and then provide a list of the ones we are interested in.

Nosedragon · Answer

Ok...short information to following procedure...I will abort it here...put the SSD in another MBP (which I can take with me tomorrow cause of work) and do it there.So within the next 24h I will post the results of the quick search...Thanks so far

Nosedragon · Answer

So here are my results from Quick Search:How do I know which one to take?TestDisk 6.14, Data Recovery Utility, July 2013Christophe GRENIER &lt;grenier@cgsecurity.org&gt;http://www.cgsecurity.orgDisk /dev/rdisk0 - 500 GB / 465 GiB - 976773168 sectors (RO)The harddisk (500 GB / 465 GiB) seems too small! (&lt; 707 GB / 659 GiB)Check the harddisk size: HD jumpers settings, BIOS detection...The following partitions can&#x27;t be recovered:     Partition               Start        End    Size in sectors&gt;  Mac HFS                570114268 1128102547  557988280   MS Data                839163872 1244608479  405444608   MS Data                841947808 1247392415  405444608   MS Data                976771071 1382215678  405444608   MS Data                976773119 1382162430  405389312[ Continue ]HFS+ blocksize&#x3D;4096, 285 GB / 266 GiB

Loner T · Answer

This is a list of partitions that cannot be recovered. Press Enter to Continue, and you should get a list of partitions that can be recovered. Usually the MS Data entries closest to the Recovery HD (125936 sectors) are good candidates.Use the first value from the gap to look for partitions starting somewhere close to it...559667456   11716352

Nosedragon · Answer

This is what came up...TestDisk 6.14, Data Recovery Utility, July 2013Christophe GRENIER &lt;grenier@cgsecurity.org&gt;http://www.cgsecurity.orgDisk /dev/rdisk0 - 500 GB / 465 GiB - 976773168 sectors (RO)     Partition               Start        End    Size in sectors&gt;P EFI System                    40     409639     409600 [EFI]   Mac HFS                   409640  558397919  557988280   Mac HFS                 12125992  570114271  557988280   MS Data                433719265  839163872  405444608   MS Data                436503201  841947808  405444608   Mac HFS                558397920  559667455    1269536   Mac HFS                570114272  571383807    1269536   MS Data                571326464  976771071  405444608 [BOOTCAMP]   MS Data                571383808  976773119  405389312   MS Data                578531259  578537432       6174   MS Data                578537432  578543605       6174 [Boot]   MS Data                578537451  578543624       6174   MS Data                578543624  578549797       6174 [Boot]   MS Data                578543643  578549816       6174   MS Data                578549816  578555989       6174 [Boot]   MS Data                578555992  578558871       2880 [EFISECTOR]   MS Data                578558872  578561751       2880 [EFISECTOR]   Mac HFS                580316100  588704709    8388610 [    D^A]   MS Data                608137196  608142955       5760   Mac HFS                608816208  608816302         95   Mac HFS                664010245  664010339         95   Mac HFS                664977397  664977491         95   MS Data                786288772  786294531       5760

Loner T · Answer

Please check these two using &#x27;P -List Files&#x27; for familiar Windows files.MS Data                571326464  976771071  405444608 [BOOTCAMP]MS Data                571383808  976773119  405389312Please see the following image for an example.

Nosedragon · Answer

doesn&#x27;t look good right?TestDisk 6.14, Data Recovery Utility, July 2013Christophe GRENIER &lt;grenier@cgsecurity.org&gt;http://www.cgsecurity.org     MS Data                571326464  976771071  405444608 [BOOTCAMP]Directory /&gt;dr-xr-xr-x     0     0         0 12-Mar-2015 10:41 .dr-xr-xr-x     0     0         0 12-Mar-2015 10:41 ..and the second one:TestDisk 6.14, Data Recovery Utility, July 2013Christophe GRENIER &lt;grenier@cgsecurity.org&gt;http://www.cgsecurity.org     MS Data                571383808  976773119  405389312Can&#x27;t open filesystem. Filesystem seems damaged.

Loner T · Answer

Can you check this one?MS Data                436503201  841947808  405444608

Nosedragon · Answer

nope...says the same: "seems damaged"but I found this one:TestDisk 6.14, Data Recovery Utility, July 2013Christophe GRENIER &lt;grenier@cgsecurity.org&gt;http://www.cgsecurity.org     MS Data                578537432  578543605       6174 [Boot]Directory /&gt;dr-xr-xr-x     0     0         0 15-Feb-2005 22:33 .dr-xr-xr-x     0     0         0 15-Feb-2005 22:33 ..dr-xr-xr-x     0     0         0 15-Feb-2005 22:33 System Volume Informationand this:TestDisk 6.14, Data Recovery Utility, July 2013Christophe GRENIER &lt;grenier@cgsecurity.org&gt;http://www.cgsecurity.org     MS Data                578543624  578549797       6174 [Boot]Directory /&gt;dr-xr-xr-x     0     0         0 15-Feb-2005 22:33 . dr-xr-xr-x     0     0         0 15-Feb-2005 22:33 .. dr-xr-xr-x     0     0         0 15-Feb-2005 22:33 System Volume Information