Darrell Stall
Level 1 (22 points)
Mac OS X

Q: Can I install Windows 10 from Bootcamp Asst USB created drive?

I got the following message when opening Boot Camp -

"The startup disk cannot be partitioned or restored to a single partition.

The startup disk must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp Asst for installing Windows."

My startup disk is formatted as a Mac OS Extended (Journaled) volume, so I clicked OK, but then the 3rd box on the Select Tasks screen was greyed out so I couldn't check "Install or remove Windows 7 or later version, so I left the 1st two boxes checked and ran BCA to "Create a Windows 7 or later version install disk", and "Download the latest Windows support software from Apple", after which I only had option to quit, not install a partition or anything else.

Now, when I boot to startup manager, it shows my OSX HD, the EFI boot drive and a Windows drive.

When I select it, message says "Booting from Boot Camp Asst USB created drive . . ."

What happens when I let that drive run installation of Windows 10?

Is it going to create a Windows partition?
If not where is it going to install Windows? over my OSX 10.11 startup disk?!!! or what?

Note: The USB created drive was created from the Windows 10 iso that I downloaded as Windows developer which can be used without an installation key.

I used it with Parallels Desktop without any problem.

Mac mini (Late 2012), OS X El Capitan (10.11.2), 2.3GHz, 16GB RAM

Posted on Jul 24, 2016 3:36 PM

by Loner T,Solvedanswer
Loner T Loner T
Level 7 (23,828 points)
Safari
A:

1. Please back up OSX first.

 

2. Merge partitions.

     diskutil mergePartitions jhfs+ "MAC_MINI" disk0s2 disk0s4

 

diskutil mergePartitions

Usage:  diskutil mergePartitions [force] format name

        DiskIdentifier|DeviceNode DiskIdentifier|DeviceNode

 

Merge two or more pre-existing partitions into one.  The first disk parameter

is the starting partition; the second disk parameter is the ending partition;

this given range of two or more partitions will be merged into one.

 

All partitions in the range, except for the first one, must be unmountable.

 

All data on merged partitions other than the first will be lost; data on the

first partition will be lost as well if the "force" argument is given.

 

If "force" is not given, and the first partition has a resizable file system

(e.g. JHFS+), it will be grown in a data-preserving manner, even if a different

file system is specified (in fact, your file system and volume name parameters

are both ignored in this case). If "force" is not given, and the first

partition is not resizable, you will be prompted if you want to erase.

 

If "force" is given, the first partition is always formatted. You should

do this if you wish to reformat to a new file system type.

 

Merged partitions are required to be ordered sequentially on disk.

See diskutil list for the actual on-disk ordering; BSD slice identifiers

may in certain circumstances not always be in numerical order but the

top-to-bottom order given by diskutil list is always the on-disk order.

 

Ownership of the affected disk is required.

 

Example: diskutil mergePartitions JHFS+ NewName disk3s4 disk3s7

         This example will merge all partitions *BETWEEN* disk3s4 and disk3s7,

         preserving data on disk3s4 but destroying data on disk3s5, disk3s6,

         disk3s7 and any invisible free space partitions between those disks;

         disk3s4 will be grown to cover the full space if possible.

This will merge disk0s3 and disk0s4 into disk0s2, leaving the main OSX partition.

 

 

3. Re-install OSX to get Recovery HD back. Be aware, Internet Recovery may provide the shipping version of OSX, not your current version. Please see About OS X Recovery - Apple Support for reference.

 

4. If you prefer to do this without touching your internal disk, then How to install OS X on an external drive connected to your Mac - Apple Support, upgrade the external disk OSX version to match your internal disk's OSX version. Boot from this external disk and re-install OSX on the internal disk after step 2. This will give you Recovery HD which matches El Capitan. Re-installing OSX does not manipulate any non-OSX files, but a backup is strongly recommended to work around "crApple Engineering" failures.

Posted on Jul 25, 2016 8:00 AM

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Darrell Stall

Q: Can I install Windows 10 from Bootcamp Asst USB created drive?

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  • Helpful answers

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  • by Loner T,

    Loner T Loner T Jul 27, 2016 11:57 AM in response to Darrell Stall
    Level 7 (23,828 points)
    Safari
    Jul 27, 2016 11:57 AM in response to Darrell Stall

    Disable SIP. (GPT Fdisk will not modify disk partitions, while SIP is still enabled).

    1. Boot into Local Recovery (Command+R).

    2. Start Utilities -> Terminal.

    3. Type csrutil disable in Terminal and press Enter/Return.

    4. Type csrutil status.

    5. Boot normally, and type csrutil status to confirm that all individual entries are still disabled.

     

    Run Gdisk

     

    sudo gdisk /dev/disk0

     

    If you are  prompted for MBR or GPT, use GPT (Option 2). Once you are in Gdisk, post the output of the 'p' command.

  • by Darrell Stall,

    Darrell Stall Darrell Stall Jul 27, 2016 5:44 PM in response to Loner T
    Level 1 (22 points)
    Mac OS X
    Jul 27, 2016 5:44 PM in response to Loner T

    Command (? for help): p

    Disk /dev/disk0: 1953525168 sectors, 931.5 GiB

    Logical sector size: 512 bytes

    Disk identifier (GUID): 0294A25C-8BA6-46B1-B4C3-A56C2DCBB67B

    Partition table holds up to 128 entries

    First usable sector is 34, last usable sector is 1953525134

    Partitions will be aligned on 8-sector boundaries

    Total free space is 264781 sectors (129.3 MiB)

     

    Number  Start (sector)    End (sector)  Size       Code  Name

       1              40          409639   200.0 MiB   EF00  EFI System Partition

       2          409640      1367325511   651.8 GiB   AF00  MAC_MINI

       3      1367588864      1953523711   279.4 GiB   0700  BOOTCAMP

  • by khaifromcheras,

    khaifromcheras khaifromcheras Jul 27, 2016 5:56 PM in response to Darrell Stall
    Level 1 (4 points)
    Jul 27, 2016 5:56 PM in response to Darrell Stall

    i want to restore i tunes

  • by Loner T,

    Loner T Loner T Jul 27, 2016 6:05 PM in response to Darrell Stall
    Level 7 (23,828 points)
    Safari
    Jul 27, 2016 6:05 PM in response to Darrell Stall

    1. Were you prompted for MBR vs GPT selection?

    2. A new GPT needs to be created. The text in parentheses is an explanation and is not meant to be typed in Gdisk.

     

    sudo gdisk /dev/disk0

    p (print)

    x (Expert Menu)

    l (Letter L - set sector alignment)

    1 (one sector)

    m (Main menu)

    o (create new GPT)

    n (New)

    1 (Partition 1)

    40 (Start)

    409639 (End)

    EF00 (EFI)

    n (New)

    2 (Partition 2)

    409640 (Start)

    1367325511 (End)

    AF00 (OSX)

    n (New)

    3 (Part 3)

    1367325511

    1953523711

    0700 (Microsoft Basic Data)

    p

    w (Write)

    y (Confirm)

     

    Reboot to ensure OS X works.

     

    Please stop if you see any error message and post back with the error.

  • by Loner T,

    Loner T Loner T Jul 27, 2016 6:07 PM in response to khaifromcheras
    Level 7 (23,828 points)
    Safari
    Jul 27, 2016 6:07 PM in response to khaifromcheras

    khaifromcheras wrote:

     

    i want to restore i tunes

    Please start a new discussion in iTunes and post details of your issue.

  • by Darrell Stall,

    Darrell Stall Darrell Stall Jul 27, 2016 7:12 PM in response to Loner T
    Level 1 (22 points)
    Mac OS X
    Jul 27, 2016 7:12 PM in response to Loner T

    I entered "2"

    Found valid MBR and GPT. Which do you want to use?

    1 - MBR

    2 - GPT

    3 - Create blank GPT

     

    When I get to command "o" I get -

    Command (? for help): o

    This option deletes all partitions and creates a new protective MBR.

    Proceed? (Y/N):


    Do I enter Y?

    It says it deletes ALL partitions and creates a new protective MBR

  • by Loner T,

    Loner T Loner T Jul 27, 2016 7:17 PM in response to Darrell Stall
    Level 7 (23,828 points)
    Safari
    Jul 27, 2016 7:17 PM in response to Darrell Stall

    It only deletes the partition table, not the data content. The 'n' commands will recreate the GPT entries again.

  • by Darrell Stall,

    Darrell Stall Darrell Stall Jul 27, 2016 7:21 PM in response to Loner T
    Level 1 (22 points)
    Mac OS X
    Jul 27, 2016 7:21 PM in response to Loner T

    Posting record of Terminal commands before I reboot -

     

    Command (? for help): p

    Disk /dev/disk0: 1953525168 sectors, 931.5 GiB

    Logical sector size: 512 bytes

    Disk identifier (GUID): 0294A25C-8BA6-46B1-B4C3-A56C2DCBB67B

    Partition table holds up to 128 entries

    First usable sector is 34, last usable sector is 1953525134

    Partitions will be aligned on 8-sector boundaries

    Total free space is 264781 sectors (129.3 MiB)

     

    Number  Start (sector)    End (sector)  Size       Code  Name

       1              40          409639   200.0 MiB   EF00  EFI System Partition

       2          409640      1367325511   651.8 GiB   AF00  MAC_MINI

       3      1367588864      1953523711   279.4 GiB   0700  BOOTCAMP

     

    Command (? for help): x

     

    Expert command (? for help): l

    Enter the sector alignment value (1-65536, default = 2048): 1

     

    Expert command (? for help): m

     

    Command (? for help): o

    This option deletes all partitions and creates a new protective MBR.

    Proceed? (Y/N): Y

     

    Command (? for help): n

    Partition number (1-128, default 1): 1

    First sector (34-1953525134, default = 2048) or {+-}size{KMGTP}: 40

    Information: Moved requested sector from 40 to 2048 in

    order to align on 2048-sector boundaries.

    Use 'l' on the experts' menu to adjust alignment

    Last sector (2048-1953525134, default = 1953525134) or {+-}size{KMGTP}: 409639

    Current type is 'Apple HFS/HFS+'

    Hex code or GUID (L to show codes, Enter = AF00): EF00

    Changed type of partition to 'EFI System'

     

    Command (? for help): n

    Partition number (2-128, default 2): 2

    First sector (34-1953525134, default = 411648) or {+-}size{KMGTP}: 409640

    Information: Moved requested sector from 409640 to 411648 in

    order to align on 2048-sector boundaries.

    Use 'l' on the experts' menu to adjust alignment

    Last sector (411648-1953525134, default = 1953525134) or {+-}size{KMGTP}: 1367325511

    Current type is 'Apple HFS/HFS+'

    Hex code or GUID (L to show codes, Enter = AF00): AF00

    Changed type of partition to 'Apple HFS/HFS+'

     

    Command (? for help): n

    Partition number (3-128, default 3): 3

    First sector (34-1953525134, default = 1367326720) or {+-}size{KMGTP}: 1367325511

    First sector (34-1953525134, default = 1367326720) or {+-}size{KMGTP}: 1953523711

    Information: Moved requested sector from 1953523711 to 1953521664 in

    order to align on 2048-sector boundaries.

    Use 'l' on the experts' menu to adjust alignment

    Last sector (1953521664-1953525134, default = 1953525134) or {+-}size{KMGTP}: 0700

    Last sector (1953521664-1953525134, default = 1953525134) or {+-}size{KMGTP}: p

    Last sector (1953521664-1953525134, default = 1953525134) or {+-}size{KMGTP}: w

    Last sector (1953521664-1953525134, default = 1953525134) or {+-}size{KMGTP}: y

    Last sector (1953521664-1953525134, default = 1953525134) or {+-}size{KMGTP}:

  • by Loner T,

    Loner T Loner T Jul 27, 2016 7:25 PM in response to Darrell Stall
    Level 7 (23,828 points)
    Safari
    Jul 27, 2016 7:25 PM in response to Darrell Stall
    Information: Moved requested sector from 40 to 2048 in

    This is incorrect. The 'l' command set it to 1. You may have to do this in two steps. Create a blank GPT and 'w' it, and back into Gdisk and run the 'l' and 'n' commands.

  • by Darrell Stall,

    Darrell Stall Darrell Stall Jul 29, 2016 6:03 AM in response to Loner T
    Level 1 (22 points)
    Mac OS X
    Jul 29, 2016 6:03 AM in response to Loner T

    Can I enter "csrutil enable" in Terminal while booted from OS?
    Or do I have to do that from Recovery HD?

  • by Loner T,

    Loner T Loner T Jul 29, 2016 6:10 AM in response to Darrell Stall
    Level 7 (23,828 points)
    Safari
    Jul 29, 2016 6:10 AM in response to Darrell Stall

    You need to use Command+R (Local Recovery).

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