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MP 1,1-5,1 Installing Windows 10 in Legacy/BIOS mode in cMP with Boot Camp Assistant

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tried afternoon twice, and the program seems stuck at some percent in extracting files; seems it is having some issue with this partition.
 

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Sergey-Galan said:
Windows Install-Outputstuck - Problem creating MBR
Click to expand...
I tried again without creating a hybrid partition manually only FAT32 and I get it too:
Code: 
Volume BOOTCAMPSL on disk2s4 mounted
################## START Install ###################
System Integrity Protection status: enabled (Custom Configuration).

Configuration:
    Apple Internal: disabled
    Kext Signing: disabled
    Filesystem Protections: disabled
    Debugging Restrictions: enabled
    DTrace Restrictions: enabled
    NVRAM Protections: enabled
    BaseSystem Verification: enabled

This is an unsupported configuration, likely to break in the future and leave your machine in an unknown state.
ProductName:    Mac OS X
ProductVersion:    10.14.6
BuildVersion:    18G9323
Model ID:      MacPro5,1
/dev/disk0 (internal):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                         512.1 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                 Apple_APFS Container disk9         511.9 GB   disk0s2

/dev/disk1 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *250.1 GB   disk1
   1:                        EFI EFI                     209.7 MB   disk1s1
   2:                  Apple_HFS OS X El Capitan         249.2 GB   disk1s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk1s3

/dev/disk2 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *250.1 GB   disk2
   1:                        EFI EFI                     209.7 MB   disk2s1
   2:                  Apple_HFS Snow Leopard            124.9 GB   disk2s2
   3:       Microsoft Basic Data BOOTCAMPSL              124.7 GB   disk2s4

/dev/disk3 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.1 GB   disk3
   1:                        EFI EFI                     209.7 MB   disk3s1
   2:                  Apple_HFS Mavericks               436.2 GB   disk3s2
   3:                  Apple_HFS Snow Leopard Server     63.5 GB    disk3s3

/dev/disk4 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk4
   1:                        EFI EFI                     209.7 MB   disk4s1
   2:                 Apple_RAID                         999.9 GB   disk4s2
   3:                 Apple_Boot Boot OS X               134.2 MB   disk4s3

/dev/disk5 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *120.0 GB   disk5
   1:                        EFI EFI                     209.7 MB   disk5s1
   2:                  Apple_HFS Mojave                  119.7 GB   disk5s2

/dev/disk6 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk6
   1:                        EFI EFI                     209.7 MB   disk6s1
   2:                 Apple_RAID                         999.9 GB   disk6s2
   3:                 Apple_Boot Boot OS X               134.2 MB   disk6s3

/dev/disk7 (internal, virtual):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        +2.0 TB     disk7
   1:                        EFI EFI                     209.7 MB   disk7s1
   2:                 Apple_APFS Container disk8         2.0 TB     disk7s2

/dev/disk8 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +2.0 TB     disk8
                                 Physical Store disk7s2
   1:                APFS Volume Catalina - Data         106.0 GB   disk8s1
   2:                APFS Volume Preboot                 25.8 MB    disk8s2
   3:                APFS Volume Recovery                731.7 MB   disk8s3
   4:                APFS Volume VM                      9.7 GB     disk8s4
   5:                APFS Volume Catalina                12.0 GB    disk8s5

/dev/disk9 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +511.9 GB   disk9
                                 Physical Store disk0s2
   1:                APFS Volume Monterey - Data         251.0 GB   disk9s1
   2:                APFS Volume Preboot                 4.7 GB     disk9s2
   3:                APFS Volume Recovery                1.1 GB     disk9s3
   4:                APFS Volume                         31.8 GB    disk9s4
   5:                APFS Volume Update                  108.2 MB   disk9s5
   6:                APFS Volume VM                      2.1 GB     disk9s6

/dev/disk10 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *5.0 TB     disk10
   1:                        EFI EFI                     209.7 MB   disk10s1
   2:                 Apple_APFS Container disk11        200.0 GB   disk10s2
   3:       Microsoft Basic Data BOOTCAMP                1.6 TB     disk10s3
   4:                  Apple_HFS Backup                  3.2 TB     disk10s4

/dev/disk11 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +200.0 GB   disk11
                                 Physical Store disk10s2
   1:                APFS Volume High Sierra             64.9 GB    disk11s1
   2:                APFS Volume Preboot                 22.3 MB    disk11s2
   3:                APFS Volume Recovery                512.1 MB   disk11s3
   4:                APFS Volume VM                      20.5 KB    disk11s4

Password:Ok
/dev/disk12                                                /Volumes/CCCOMA_X64FRE_EN-US_DV9
Disk: /dev/disk2    geometry: 30401/255/63 [488397168 sectors]
Signature: 0xAA55
         Starting       Ending
 #: id  cyl  hd sec -  cyl  hd sec [     start -       size]
------------------------------------------------------------------------
 1: EE 1023 254  63 - 1023 254  63 [         1 -  488397167] <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
Original partition 4 does not exist or is too big! Aborting operation!
Problem creating MBR!
Password:fdisk: could not open MBR file /usr/standalone/i386/boot0: No such file or directory
Enter 'help' for information
fdisk: 1> Invalid argument: flag <partition number>
fdisk: 1> Disk: /dev/disk2    geometry: 30401/255/63 [488397168 sectors]
Signature: 0xAA55
         Starting       Ending
 #: id  cyl  hd sec -  cyl  hd sec [     start -       size]
------------------------------------------------------------------------
 1: EE 1023 254  63 - 1023 254  63 [         1 -  488397167] <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
Volume BOOTCAMPSL on disk2s4 unmounted
Cluster size has been automatically set to 4096 bytes.
Creating NTFS volume structures.
mkntfs completed successfully. Have a nice day.
Windows Install disk2s4
At the end it failed again unmounting the partition. I tried unmounting manually and it did not work. After interrogation found that the spotlight is preventing the unmount:
Code: 
sudo lsof /dev/disk2*
COMMAND     PID USER   FD   TYPE DEVICE SIZE/OFF    NODE NAME
notifyd     101 root   88r   DIR    1,9     1224       2 /Volumes/Snow Leopard
mds_store   293 root  txt    REG   1,10     3277      38 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/0.indexGroups
mds_store   293 root  txt    REG   1,10        8      37 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/0.indexBigDates
mds_store   293 root  txt    REG   1,10     3277      51 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexGroups
mds_store   293 root  txt    REG   1,10     1024      57 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexCompactDirectory
mds_store   293 root  txt    REG   1,10        8     118 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/0.indexCompactDirectory
mds_store   293 root  txt    REG   1,10     8192      53 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexTermIds
mds_store   293 root  txt    REG    1,9     8192 1144023 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.1.indexTermIds
mds_store   293 root  txt    REG   1,10    16384      50 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexBigDates
mds_store   293 root  txt    REG   1,10     8192      55 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexPositionTable
mds_store   293 root  txt    REG    1,9    65536 1144028 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.1.indexArrays
mds_store   293 root  txt    REG   1,10     8224      56 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexDirectory
mds_store   293 root  txt    REG   1,10       16      36 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/0.indexIds
mds_store   293 root  txt    REG   1,10     2056     117 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/0.indexDirectory
mds_store   293 root  txt    REG    1,9     3277 1139730 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.0.indexGroups
mds_store   293 root  txt    REG    1,9        8 1144045 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.0.indexCompactDirectory
mds_store   293 root  txt    REG    1,9     3277 1144021 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.1.indexGroups
mds_store   293 root  txt    REG    1,9    16384 1139729 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.0.indexBigDates
mds_store   293 root  txt    REG    1,9     2056 1144044 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.0.indexDirectory
mds_store   293 root  txt    REG   1,10    32768      49 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexIds
mds_store   293 root  txt    REG    1,9     7168 1139728 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.0.indexIds
mds_store   293 root  txt    REG    1,9     1024 1144027 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.1.indexCompactDirectory
mds_store   293 root  txt    REG    1,9     8192 1144025 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.1.indexPositionTable
mds_store   293 root  txt    REG    1,9    16384 1144056 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.1.indexBigDates
mds_store   293 root  txt    REG    1,9     8224 1144026 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.1.indexDirectory
mds_store   293 root  txt    REG   1,10    65536      58 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexArrays
mds_store   293 root  txt    REG   1,10    65536      60 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.directoryStoreFile
mds_store   293 root  txt    REG    1,9    65536 1144047 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.0.directoryStoreFile
mds_store   293 root  txt    REG    1,9    32768 1144020 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.1.indexIds
mds_store   293 root  txt    REG    1,9   174464 1144046 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.0.indexArrays
mds_store   293 root  txt    REG    1,9    65536 1144030 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.1.directoryStoreFile
mds_store   293 root  txt    REG   1,10    65536      63 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/reverseDirectoryStore
mds_store   293 root  txt    REG   1,10    65536     120 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/0.directoryStoreFile
mds_store   293 root  txt    REG    1,9   395252 1139772 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/0.indexGroups
mds_store   293 root  txt    REG   1,10    66176     119 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/0.indexArrays
mds_store   293 root  txt    REG    1,9  4194304 1139460 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/reverseDirectoryStore
mds_store   293 root  txt    REG    1,9  3952512 1139770 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/0.indexIds
mds_store   293 root  txt    REG    1,9  1976256 1139771 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/0.indexBigDates
mds_store   293 root  txt    REG    1,9  2318140 1139777 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/0.indexDirectory
mds_store   293 root  txt    REG    1,9  4194304 1139781 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/0.directoryStoreFile
mds_store   293 root  txt    REG    1,9 13969730 1139778 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/0.indexCompactDirectory
mds_store   293 root  txt    REG    1,9 92546048 1139779 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/0.indexArrays
mds_store   293 root   17r   DIR   1,10     2176      25 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444
mds_store   293 root   31u   REG   1,10     4096      52 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexPostings
mds_store   293 root   32r   DIR   1,10     2176      25 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444
mds_store   293 root   33u   REG   1,10       28      34 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/indexState
mds_store   293 root   43u   REG    1,9 21647360 1139459 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/.store.db
mds_store   293 root   44u   REG   1,10   118784      61 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/store.db
mds_store   293 root   47u   REG   1,10   118784      62 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/.store.db
mds_store   293 root   48u   REG   1,10    65536      63 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/reverseDirectoryStore
mds_store   293 root  103u   REG   1,10     3277      51 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexGroups
mds_store   293 root  104u   REG   1,10     4096      52 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexPostings
mds_store   293 root  105u   REG   1,10     8192      53 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexTermIds
mds_store   293 root  106u   REG   1,10     4096      54 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexPositions
mds_store   293 root  107u   REG   1,10     8192      55 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexPositionTable
mds_store   293 root  108u   REG   1,10     8224      56 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexDirectory
mds_store   293 root  109u   REG   1,10     1024      57 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexCompactDirectory
mds_store   293 root  111u   REG   1,10    65536      58 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexArrays
mds_store   293 root  112u   REG   1,10    16384      50 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexBigDates
mds_store   293 root  113u   REG   1,10    32768      49 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexIds
mds_store   293 root  114u   REG   1,10     4096      48 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.indexHead
mds_store   293 root  118u   REG   1,10    65536      60 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444/live.0.directoryStoreFile
mds_store   293 root  120r   DIR    1,9     2890  851060 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43
mds_store   293 root  123r   DIR    1,9     2890  851060 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43
mds_store   293 root  124u   REG    1,9       28 1139433 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/indexState
mds_store   293 root  185u   REG    1,9     4096 1144022 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.1.indexPostings
mds_store   293 root  195r   REG    1,9    59995 1144040 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/live.0.indexPostings
mds_store   293 root  196r   REG    1,9 81443766 1139773 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43/0.indexPostings
mds       43910 root    9r   DIR    1,9     1224       2 /Volumes/Snow Leopard
mds       43910 root   20r   DIR   1,10      306       2 /Volumes/BOOTCAMPSL
mds       43910 root   30r   DIR    1,9     2890  851060 /Volumes/Snow Leopard/.Spotlight-V100/Store-V2/6B2E4066-84C0-4E45-A50E-E6A559E9AF43
mds       43910 root   49r   DIR    1,9     1224       2 /Volumes/Snow Leopard
mds       43910 root   53r   DIR   1,10      306       2 /Volumes/BOOTCAMPSL
mds       43910 root   57r   DIR   1,10     2176      25 /Volumes/BOOTCAMPSL/.Spotlight-V100/Store-V2/D307571E-A612-42DF-A602-86384B664444
I temporarily turned the spotlight OFF:
Code: 
sudo mdutil -a -i off
And the drive lock was gone.
Repeated the install process, but at the beginning still got:
Original partition 4 does not exist or is too big! Aborting operation!
Problem creating MBR!
Click to expand...
May I propose using gptsync for hybrid MBR creation?
Code: 
sudo gptsync /dev/disk2
Password:

Current GPT partition table:
 #      Start LBA      End LBA  Type
 1             40       409639  EFI System (FAT)
 2         409640    488134983  Mac OS X HFS+

Current MBR partition table:
 # A    Start LBA      End LBA  Type
 1              1    488397167  ee  EFI Protective

Status: MBR table must be updated.

Proposed new MBR partition table:
 # A    Start LBA      End LBA  Type
 1              1       409639  ee  EFI Protective
 2         409640    488134983  af  Mac OS X HFS+
 3      488134984    488397167  ee  EFI Protective

May I update the MBR as printed above? [y/N] y
Yes

Writing new MBR...
MBR updated successfully!

After adding FAT32 partition:
Code: 
sudo gptsync /dev/disk2

Current GPT partition table:
 #      Start LBA      End LBA  Type
 1             40       409639  EFI System (FAT)
 2         409640    244272311  Mac OS X HFS+
 3      244535296    488134655  Basic Data

Current MBR partition table:
 # A    Start LBA      End LBA  Type
 1              1    488397167  ee  EFI Protective

Status: MBR table must be updated.

Proposed new MBR partition table:
 # A    Start LBA      End LBA  Type
 1              1       409639  ee  EFI Protective
 2         409640    244272311  af  Mac OS X HFS+
 3      244535296    488134655  0c  FAT32 (LBA)
 4      488134656    488397167  ee  EFI Protective

May I update the MBR as printed above? [y/N] y
Yes

Writing new MBR...
MBR updated successfully!
github.com

GitHub - startergo/gptsync-macOS

Contribute to startergo/gptsync-macOS development by creating an account on GitHub.
github.com github.com

After using gptsync now fdisk shows:
Code: 
sudo fdisk /dev/disk2
Disk: /dev/disk2    geometry: 30401/255/63 [488397168 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 -  243862672] HFS+  
 3: 0C 1023 254  63 - 1023 254  63 [ 244535296 -  243599360] Win95 FAT32L
 4: EE 1023 254  63 - 1023 254  63 [ 488134656 -     262512] <Unknown ID>

The Fdisk command from your tool still shows:
Code: 
Disk: /dev/disk2    geometry: 30401/255/63 [488397168 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 -  243862672] HFS+      
 3: 0C 1023 254  63 - 1023 254  63 [ 244535296 -  243599360] Win95 FAT32L
 4: EE 1023 254  63 - 1023 254  63 [ 488134656 -     262512] <Unknown ID>
Original partition 4 does not exist or is too big! Aborting operation!
Problem creating MBR!
Password:fdisk: could not open MBR file /usr/standalone/i386/boot0: No such file or directory
Enter 'help' for information
fdisk: 1> Partition 3 marked active.
fdisk:*1> Writing current MBR to disk.
Device could not be accessed exclusively.
A reboot will be needed for changes to take effect. OK? [n] Disk: /dev/disk2    geometry: 30401/255/63 [488397168 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 -  243862672] HFS+      
*3: 0C 1023 254  63 - 1023 254  63 [ 244535296 -  243599360] Win95 FAT32L
 4: EE 1023 254  63 - 1023 254  63 [ 488134656 -     262512] <Unknown ID>
Volume BOOTCAMPSL on disk2s4 unmounted
Cluster size has been automatically set to 4096 bytes.
Creating NTFS volume structures.
 

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After finishing installation I got this:
Code: 
Unmount of all volumes on disk2 was successful
Windows 7 master boot record successfully written to /dev/disk2
disk2s4 was already unmounted
/dev/disk2s4 does not seem to have a NTFS file system,
use the switch -f to force writing of a NTFS boot record
Volume on disk2s4 failed to mount
If the volume is damaged, try the "readOnly" option
... Complete
... Time is spent: 41m36s
... Current time: 2024-06-05 10:15:38 -0400
######################## End ########################
Disk /Volumes/CCCOMA_X64FRE_EN-US_DV9 ejected
The file /Volumes/BOOTCAMPSL does not exist.
Code: 
diskutil info /dev/disk2
   Device Identifier:         disk2
   Device Node:               /dev/disk2
   Whole:                     Yes
   Part of Whole:             disk2
   Device / Media Name:       TOSHIBA MK2561GSYN

   Volume Name:               Not applicable (no file system)
   Mounted:                   Not applicable (no file system)
   File System:               None

   Content (IOContent):       FDisk_partition_scheme
   OS Can Be Installed:       No
   Media Type:                Generic
   Protocol:                  SATA
   SMART Status:              Verified

   Disk Size:                 250.1 GB (250059350016 Bytes) (exactly 488397168 512-Byte-Units)
   Device Block Size:         512 Bytes

   Read-Only Media:           No
   Read-Only Volume:          Not applicable (no file system)

   Device Location:           Internal
   Removable Media:           Fixed

   Solid State:               No
   Virtual:                   No
   Hardware AES Support:      No
   Device Location:           "Lower"

G5s-Mac-Pro:~ g5$ diskutil info /dev/disk2s4
   Device Identifier:         disk2s4
   Device Node:               /dev/disk2s4
   Whole:                     No
   Part of Whole:             disk2

   Volume Name:               Not applicable (no file system)
   Mounted:                   Not applicable (no file system)
   File System:               None

   Partition Type:            0xEE
   OS Can Be Installed:       No
   Media Type:                Generic
   Protocol:                  SATA
   SMART Status:              Verified
   Partition Offset:          249924943872 Bytes (488134656 512-Byte-Device-Blocks)

   Disk Size:                 134.4 MB (134406144 Bytes) (exactly 262512 512-Byte-Units)
   Device Block Size:         512 Bytes

   Read-Only Media:           No
   Read-Only Volume:          Not applicable (no file system)

   Device Location:           Internal
   Removable Media:           Fixed

   Solid State:               No
   Hardware AES Support:      No
   Device Location:           "Lower"

G5s-Mac-Pro:~ g5$ diskutil info /dev/disk2s3
   Device Identifier:         disk2s3
   Device Node:               /dev/disk2s3
   Whole:                     No
   Part of Whole:             disk2

   Volume Name:               Not applicable (no file system)
   Mounted:                   Not applicable (no file system)
   File System:               None

   Partition Type:            Windows_FAT_32
   OS Can Be Installed:       No
   Media Type:                Generic
   Protocol:                  SATA
   SMART Status:              Verified
   Partition Offset:          125202071552 Bytes (244535296 512-Byte-Device-Blocks)

   Disk Size:                 124.7 GB (124722872320 Bytes) (exactly 243599360 512-Byte-Units)
   Device Block Size:         512 Bytes

   Read-Only Media:           No
   Read-Only Volume:          Not applicable (no file system)

   Device Location:           Internal
   Removable Media:           Fixed

   Solid State:               No
   Hardware AES Support:      No
   Device Location:           "Lower"
Code: 
sudo /Users/g5/Documents/gptsync /dev/disk2
Password:

Current GPT partition table:
 #      Start LBA      End LBA  Type
 1             40       409639  EFI System (FAT)
 2         409640    244272311  Mac OS X HFS+
 3      244535296    488134655  Basic Data

Current MBR partition table:
 # A    Start LBA      End LBA  Type
 1              1       409639  ee  EFI Protective
 2         409640    244272311  af  Mac OS X HFS+
 3 *    244535296    488134655  0c  FAT32 (LBA)
 4      488134656    488397167  ee  EFI Protective

Status: MBR table must be updated.

Proposed new MBR partition table:
 # A    Start LBA      End LBA  Type
 1              1       409639  ee  EFI Protective
 2         409640    244272311  af  Mac OS X HFS+
 3      244535296    488134655  07  NTFS/HPFS
 4      488134656    488397167  ee  EFI Protective

May I update the MBR as printed above? [y/N]
 
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@Sergey-Galan it is a bit puzzling, but thank you very much.

OUt of the maybe 10 attempts, (with "Install Windows Legacy Boot"), only one was successful.

Used always the same HDD, the same partition; but in the process, the file-system must have gotten corrupted somehow, i have no explanation why it would function previously, and now no longer.

Had formatted Partition as FAT32 (HDD is already GUID), and Windows 10 22H2 installed beautifully.

Deleted the Windows 10 22H2 partition, erased as FAT32 again, attempted to install Windows 7 64 Bit ISO; but booting process stalled after some time with error message;

After that , several attempts, and no longer any luck with installing;

had suspected that Mojave Disk Utility is making issues with FAT32, so i even used Paragon Hard Disk Manager; used Mavericks Disk Utility (which seem more stable), but no luck.

Since i have working MacOS on partition 1 i am wary to delete the whole HDD, which maybe would solve the issues; but i hope this can be "magically" fixed and the Windows Install Script function again, since it seem a handy tool and useful for installing Windows where Bootcamp is also prone to error (at least often whenever i tried to use it).


EDIt: forgot to mention that at one point during attempts maybe halfway through i did use the option "Restore EFI Bootloader" maybe that messed up the whole thing to the point that now the HDD is no longer accepting the 22h2 as previously. already deleted the EFI files , but maybe the "damage" done is deeper than that?
 

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the Harddsik used is 1TB , now the Hard Disk Manager is showing 1,5 TB of space, which is odd;

please advise on which option of the offered to take to remedy the situaiton (see attached screenshot).


Thank you!


EDIT: thank you, i have been able to re-install Windows 10 after reparing the HDD with Partiton/Hard Disk Manager (Convert to GPT) and afterwards Reformat as ExFAT.
It seems my computer here likes more the option ExFAT rather than FAT32 when using with this Script.
no luck for installing Windows 7.
 

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  • Screenshot 2024-06-05 at 17.32.23.png
    Screenshot 2024-06-05 at 17.32.23.png
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I think I found one of the issues. It looks like after adding a FAT32 partition it almost always is not in order. For instance if the previous partition is /dev/disk0s2 the FAT32 may become /dev/disk0s4.
After applying manipulations to the partition by the Windows Installer that partition becomes /dev/disk0s3 and at the end the software can't find it. On my last test I had 2 partitions and I added a FAT32 partition, so the order was /dev/disk3s3, /dev/disk3s6, /dev/disk3s4. And the normal sequential order of the partitions is restored after reboot and after the Windows Installer finishes. So, for successful usage one should reboot first after creation of the FAT32 partition and then use the Windows Install application.
 
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If you are using gptsync use it with the option:
Code: 
-n, --nofill            don't try to protect unused partition
as the Windows Install application does not like the extra partition.For instance:
Code: 
sudo gptsync -n /dev/disk0
So to emphasize the Windows Install application works fine after
1. Creating a FAT32 partition.
2. Rebooting the machine.
3. Starting the BOOTCAMP installation through the Windows Install application after ensuring there is no any partition locks from any processes by manually unmounting/mounting the FAT32 partition.
The application will automatically create a hybrid partition as long as you select the legacy install option. No need to create it manually.
 
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startergo said:
1. Creating a FAT32 partition.
2. Rebooting the machine.
3. Starting the BOOTCAMP installation through the Windows Install application after ensuring there is no any partition locks from any processes by manually unmounting/mounting the FAT32 partition.
The application will automatically create a hybrid partition as long as you select the legacy install option. No need to create it manually.
Click to expand...
Thank you. Good instructions. By the way, in such a situation, Install Windows UEFI has no problems.
 
Sergey-Galan said:
Thank you. Good instructions. By the way, in such a situation, Install Windows UEFI has no problems.
Click to expand...
That makes sense as there is no partition manipulation in UEFI mode. The ESP already exists. Only the files need to be copied there.
 
Test version 6.1.5
Скриншот 2024-06-08 в 02.31.22.png
What I added and corrected:
1. Installing Windows on MBR (format the disk only exFat)
2. Deactivate Windows ESP for Windows UEFI (also works for restoring bootloader EFI partition)
3. When installing Windows UEFI, if the drive is hybrid, it is converted to GTP
4. Checking the disk for disconnection
5. Eliminating random BCD error
Do not forget that this is testing, there should not be any valuable information on the disk.

I tested three options on a second generation Intel PC - «Install Windows UEFI» (GTP), «Install Windows legacy boot» (GTP+ MBR) and «Install Windows legacy boot» (MBR). Installed Windows 7, Windows 10, Windows 11.
Before installing a new version, it is advisable to completely remove the old one.
 

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This does not make sense:
1717844431854.png
 

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  • Windows Install-Output.txt
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More nonsense
Screenshot 2024-06-08 at 07.16.28.png
 

Attachments

  • Windows Install-Output.txt
    6 KB · Views: 35
Sergey-Galan said:
You can remove the program completely, for example using AppCleaner. Download version 6.1.5 again, I re-uploaded it.
Click to expand...
Still the same. And the previous version works just fine.
 

Attachments

  • Windows Install-Output.txt
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Sergey-Galan said:
2. Deactivate Windows ESP for Windows UEFI (also works for restoring bootloader EFI partition)
Click to expand...
Can you elaborate on this please?
2 min 43s Windows 7 install. Impressive!
 

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  • Windows Install-Output.txt
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startergo said:
Can you elaborate on this please?
Click to expand...

Macschrauber said:
this would be nice to have an option to - I call it deactivate UEFI Windows ESP when installing in UEFI mode.

I do it (the ESP tools, for example mount from list and show bootloader) by renaming /EFI/BOOT/bootx64.efi to bootx64.efioff

so a Mac Pro can not boot this ESP directly without OpenCore, and so the risk, getting certificates in the nvram is lowered.

Deleting /EFI/BOOT works also. If renamed the disk can be easily set up to boot in a native UEFI machine by renaming back to bootx64.efi.

If you use bootx64.efioff my ESP tools show [Windows ESP (deactivated)]. Mount from ESP and show bootloader is part of MarintLo's OpenCore package for MacPros so it is widely spread.


If installed in Legacy mode imo no ESP should be written at all.

At least for the 2009 to 2012 Mac Pro Bootcamp also writes no UEFI ESP.
Click to expand...
If you hover your cursor over it, there will be a hint.
 
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Sergey-Galan said:
1. Installing Windows on MBR (format the disk only exFat)
Click to expand...
It still creates hybrid partition. Is this by design? Or should I format the disk to MBR manually?
 

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  • Windows Install-Output.txt
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If I manually create MBR disk with an exFAT partition on it I get nothing.
 

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  • Windows Install-Output.txt
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