Hi everybody,
I tried to change my partition size to allow more space for Windows without realizing that it would ruin my Windows half. Now when I try to boot into Windows, I get "Missing Operating System"
HELP!
Thanks, Harry
MacBook Pro, OS X Yosemite (10.10.3)
Looking for you, Loner T!
Also, it's Windows 7.
Currently running the TestDisk program since that's what all the threads say to do
Anybody willing to help? Loner T?
Apologies. Just saw this. Please post the output of the following for the record from a new Terminal window. Leave the Testdisk running as is.
diskutil list
diskutil cs list
sudo gpt -vv -r show /dev/disk0
sudo fdisk /dev/disk0
The "sudo" commands will prompt for your password, and it will not be echoed back. You may also see a warning about improper use of "sudo" and potential data loss due to "abuse" of the command.
No worries, thanks so much for the help!
Here's what they show:
Last login: Tue Aug 4 19:33:54 on ttys000
???$ 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 HD 250.0 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
4: Microsoft Basic Data 84.2 GB disk0s4
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: Apple_partition_scheme *16.8 MB disk1
1: Apple_partition_map 32.3 KB disk1s1
2: Apple_HFS Flash Player 16.8 MB disk1s2
??? diskutil cs list
No CoreStorage logical volume groups found
??? sudo gpt -vv -r show /dev/disk0
Password:
gpt show: /dev/disk0: mediasize=500107862016; sectorsize=512; blocks=976773168
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 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 -
409640 488281248 2 GPT part -
488690888 1269536 3 GPT part -
489960424 322266136
812226560 164546560 4 GPT part -
976773120 15
976773135 32 Sec GPT table
976773167 1 Sec GPT header
??? sudo 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 - 409639] <Unknown ID>
2: AF 1023 254 63 - 1023 254 63 [ 409640 - 488281248] HFS+
3: AB 1023 254 63 - 1023 254 63 [ 488690888 - 1269536] Darwin Boot
*4: 07 1023 254 63 - 1023 254 63 [ 812226560 - 164546560] HPFS/QNX/AUX
???
Please remove serial number and personal information, if you can. Not a good idea to leave it on a public forum.
Ah, that would be smart! 😉 Fixed
The UUIDs are randomly generated, and do not convert any personal information.
Since you have the Testdisk running let it finish, and post the list of recoverable partitions when complete. Usually a Quick Search is typically sufficient in your specific case.
Okay, will do. For the some reason the process isn't showing the % done, I have no idea how long it's gonna take.
How large is your internal disk? If this a Mac with a power adapter, please leave the power adapter connected.
It's only 500GB, but when I was reading the initial quick scan partition, it gave an error that said the hard drive seems too small? Should I stop the deeper scan now?
This is what the scan shows so far:
Disk /dev/disk0 - 500 GB / 465 GiB - 976773168 sectors (RO)
Analyse sector 279904256/976773167: 00%
Mac HFS 146896025 148165560 1269536
Mac HFS 145626493 146896028 1269536
Mac HFS 148163540 149433075 1269536
Mac HFS 146894008 148163543 1269536
Mac HFS 169685822 172569407 2883586
Mac HFS 166802240 169685825 2883586
Mac HFS 210797718 213681303 2883586
Mac HFS 207914136 210797721 2883586
Mac HFS 217449611 220333196 2883586
Mac HFS 214566029 217449614 2883586
Mac HFS 235870954 238754539 2883586
Mac HFS 232987372 235870957 2883586
Mac HFS 262815782 265699367 2883586
Mac HFS 259932200 262815785 2883586
1. How long has it been running?
2. The error is expected. Testdisk tries to use the Start/Size of partition headers, and if part of the partition is expected to be outside ether disk boundaries, it will report a disk is too small error message.
It's been running for about an hour and a half now.
Let it finish.
Gotcha! It'll probably finish around like 2 am, so I can post it in the morning
Tried to partition hard drive and lost Windows
