Q: problem with partition map preven from booting, after bootcamp and change partition table map

-bash-3.2# fdisk /dev/disk0

Disk: /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 -  976773167] <Unknown ID>

2: 00    0   0   0 -    0   0   0 [         0 -          0] unused     

3: 00    0   0   0 -    0   0   0 [         0 -          0] unused     

4: 00    0   0   0 -    0   0   0 [         0 -          0] unused     

-bash-3.2#

-bash-3.2# diskutil list

/dev/disk0

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *500.1 GB   disk0

   1:                        EFI                         209.7 MB   disk0s1

   2:          Apple_CoreStorage                         372.0 GB   disk0s2

   3:                 Apple_Boot Boot OS X               650.0 MB   disk0s3

   4:                  Apple_HFS Untitled                127.1 GB   disk0s4

/dev/disk1

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:     Apple_partition_scheme                        *1.4 GB     disk1

   1:        Apple_partition_map                         30.7 KB    disk1s1

   2:         Apple_Driver_ATAPI                         2.0 KB     disk1s2

   3:                  Apple_HFS Mac OS X Base System    1.4 GB     disk1s3

/dev/disk2

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *524.3 KB   disk2

/dev/disk3

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *524.3 KB   disk3

/dev/disk4

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *524.3 KB   disk4

/dev/disk5

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *524.3 KB   disk5

/dev/disk6

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *524.3 KB   disk6

/dev/disk7

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *6.3 MB     disk7

/dev/disk8

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *2.1 MB     disk8

/dev/disk9

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *1.0 MB     disk9

/dev/disk10

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *524.3 KB   disk10

/dev/disk11

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *524.3 KB   disk11

/dev/disk12

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            untitled               *1.0 MB     disk12

/dev/disk13

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:     FDisk_partition_scheme                        *2.1 GB     disk13

   1:                 DOS_FAT_32 MYLINUXLIVE             2.1 GB     disk13s1

/dev/disk14

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                  Apple_HFS MacintoshHD            *371.7 GB   disk14

-bash-3.2#

-bash-3.2#

-bash-3.2# fdisk

usage: fdisk [-ieu] [-f mbrboot] [-c cyl -h head -s sect] [-S size] [-r] [-a style] disk

  -i: initialize disk with new MBR

  -u: update MBR code, preserve partition table

  -e: edit MBRs on disk interactively

  -f: specify non-standard MBR template

  -chs: specify disk geometry

  -S: specify disk size

  -r: read partition specs from stdin (implies -i)

  -a: auto-partition with the given style

  -d: dump partition table

  -y: don't ask any questions

  -t: test if disk is partitioned

`disk' is of the form /dev/rdisk0.

auto-partition styles:

  boothfs     8Mb boot plus HFS+ root partition (default)

  hfs         Entire disk as one HFS+ partition

  dos         Entire disk as one DOS partition

  raid        Entire disk as one 0xAC partition

-bash-3.2# gpt -r show l /dev/disk0

gpt show: unable to open device 'l': No such file or directory

      start       size  index  contents

          0          1         PMBR

          1          1         Pri GPT header

          2         32         Pri GPT table

         34          6        

         40     409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

     409640  726609000      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

  727018640    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

  728288176  248222808      4  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

  976510984     262151        

  976773135         32         Sec GPT table

  976773167          1         Sec GPT header

-bash-3.2# diskutil repairDisk disk0

Repairing the partition map might erase disk0s1, proceed? (y/N) y

Started partition map repair on disk0

Checking prerequisites

Checking the partition list

Checking for an EFI system partition

Checking the EFI system partition's size

Checking the EFI system partition's file system

Checking all HFS data partition loader spaces

Reviewing boot support loaders

Checking Core Storage Physical Volume partitions

Checking storage system

Problems were encountered during repair of the partition map

Error: -69716: Storage system verify or repair failed

Underlying error: 1: POSIX reports: Operation not permitted

-bash-3.2#

when OSx wants to boot , the porhibited sign will comes up

when I use disk utility in online recovery to repair disk, it will show problem with partition map table prevent boot.

and when I get option key, it will shows up

thanks, please save me

I wanted to convert GPT to MBR using gdisk, and when I write to partitions, using expert and then n and w, after boot up the problem comes up.

can i use time machine from online recovery, to back up my stuff ? and do the upgrade ?

I must mention that, I'm able to boot into a live Gparted USB to use the testDisk and gdisk, if there is a way to recover the partition map tabel

the problem comes out when it was creating new protective MBR and when it was trying to write to partition table, it couldn't finish the operation.

I do have a external hard drive, But i have to transfer all the data on, into another PC first.

how to disable FileVault2 ?

alright, I install new Os x on my external hard drive and i can access to my MachintochHD , I can see my files as well, should I back up it and  Install new Os x on my internal hard drive or am i able to fix the partition map?

I disable FileVault as well