Forum Discussion
TammerAb
Oct 06, 2021Copper Contributor
mbr2gpt Disk Validation Failed
I've been trying to get the mbr2gpt Program to work and no matter what I do it will not work
This is the command I try to run
mbr2gpt /allowFullOS /disk:1 /validate
DISKPART> list disk
Disk ### Status Size Free Dyn Gpt
-------- ------------- ------- ------- --- ---
Disk 0 Online 931 GB 0 B
Disk 1 Online 465 GB 2048 KB
Here is my disk partition information Disk 1 is the C Drive
I tried to shrink the drive by 200 mb and 2 gb it did not work.
Each time I try to validate I get the following error
C:\>mbr2gpt /allowFullOS /disk:1 /validate
MBR2GPT: Attempting to validate disk 1
MBR2GPT: Retrieving layout of disk
MBR2GPT: Validating layout, disk sector size is: 512 bytes
Disk layout validation failed for disk 1
The screenshot below shows how my disks are setup
and I'm on the correct version of windows
I tried going into recovery mode as well and I received the same error.
Here is the log when I run the tool:
2021-10-06 16:41:19, Info MBR2GPT was explicitly asked to run in full OS mode.
2021-10-06 16:41:19, Info MBR2GPT: Attempting to validate disk 1
2021-10-06 16:41:19, Info MBR2GPT: Retrieving layout of disk
2021-10-06 16:41:19, Info MBR2GPT: Initial partition information
2021-10-06 16:41:19, Info ===========================================================
2021-10-06 16:41:19, Info Partition layout for disk: 1
2021-10-06 16:41:19, Info Partition style : MBR
2021-10-06 16:41:19, Info MBR signature: 997211822
2021-10-06 16:41:19, Info Number of partitions : 2
2021-10-06 16:41:19, Info ===================PARTITION===============================
2021-10-06 16:41:19, Info Number: 1
2021-10-06 16:41:19, Info Type: 7
2021-10-06 16:41:19, Info Boot: No
2021-10-06 16:41:19, Info Recognized: Yes
2021-10-06 16:41:19, Info Style: 0
2021-10-06 16:41:19, Info Offset: 1048576
2021-10-06 16:41:19, Info Length: 499511453184
2021-10-06 16:41:19, Info Volume: \\?\Volume{3b00000-0000-0000-0000-100000000000}\
2021-10-06 16:41:19, Info Drive: C:\
2021-10-06 16:41:19, Info NT Path: \Device\HardDisk1\Partition1
2021-10-06 16:41:19, Info ===================PARTITION===============================
2021-10-06 16:41:19, Info Number: 2
2021-10-06 16:41:19, Info Type: 39
2021-10-06 16:41:19, Info Boot: No
2021-10-06 16:41:19, Info Recognized: Yes
2021-10-06 16:41:19, Info Style: 0
2021-10-06 16:41:19, Info Offset: 499514343424
2021-10-06 16:41:19, Info Length: 591396864
2021-10-06 16:41:19, Info Volume: \\?\Volume{3b00000-0000-0000-0000-604d74000000}\
2021-10-06 16:41:19, Info Drive: None
2021-10-06 16:41:19, Info NT Path: \Device\HardDisk1\Partition2
2021-10-06 16:41:19, Info ===========================================================
2021-10-06 16:41:19, Info ESP partition size will be 104857600
2021-10-06 16:41:19, Info MBR2GPT: Validating layout, disk sector size is: 512 bytes
2021-10-06 16:41:19, Error ValidateLayout: Wrong boot partition count, expected 1 but found 0.
2021-10-06 16:41:19, Error Disk layout validation failed for disk 1
2021-10-06 16:41:19, Error ValidateLayout: Wrong boot partition count, expected 1 but found 0.
2021-10-06 16:41:19, Error Disk layout validation failed for disk 1
Does anyone have any idea on how to resolve this?