Boot Camp

Question

Boot Camp

Hi I have a MacBook Pro (15-inch, 2.53GHz, Intel Core 2 Duo, with Memory 4 GB, OS X Yosemite Version 10.10.3, have a boot camp partition with Window 7.

I decide to increase the window partition, I know that I have to delete the old partition and create a new one with the new size, to restore windows with only boot camp image and a repair disk from window, how about formatting the new partition , is it safe to use Disk utility to slide MAC partition to a new size, then use third party app to increase boot camp size,please help what is the best and secure method to apply, without side effect or losing data, on both Mac and Windows.

MacBook Pro

Posted on May 19, 2015 10:30 PM

Reply

Answer 1

Loner T

Level 9

59,536 points

May 20, 2015 3:45 AM in response to faridfromchicago

1. Create a new Windows backup using Windows Backup/Restore to an external disk formatted as NTFS.

2. Copy your files to a second backup disk for safety. Back up OSX for safety.

3. Remove current Windows installation using BC Assistant only.

4. Use BCA to install Windows on a larger partition.

5. Restore your files. If you restore the System Image, the Windows disk partition will be larger than the size you see in Windows Disk Management.

Reply

Answer 2

May 22, 2015 11:45 PM in response to Loner T

Thank you for your reply, but do I need the installation disk, and how the Window Disk Partition will be larger [the Windows disk partition will be larger than the size you see in Windows Disk Management.] I can't understand what do you mean, please explain, and thank you again.

Reply

Answer 3

Loner T

Level 9

59,536 points

May 23, 2015 8:36 AM in response to faridfromchicago

Yes, you will need access to the installer media.

For example, if your current Windows installation is 40GB, and you create a Windows System Image, this will contain information that the partition size is 40GB. If you remove this partition using BCA, and create a new Windows installation as 60GB, and restore the old 40GB image, Windows will show the partition to be 60GB but your C: will still be 40GB. You will need to resize the 40GB to use the entire 60GB using Windows Disk Management.

Reply

Answer 4

May 28, 2015 10:48 PM in response to Loner T

Good Day Loner T

Have deleted the bootcamp partition and created a new larger partition of bootcamp, but Mac formatted it as MS-Dos (fat32), how can I reformate this new partition into NTSF, I had to use the installation disk, I don't want to install a new Window, I just want to restore using a repair Disk and the system image.

Reply

Answer 5

Loner T

Level 9

59,536 points

May 29, 2015 4:46 AM in response to faridfromchicago

The System Restore should reformat the FAT partition to NTFS as necessary.

Reply

Answer 6

May 31, 2015 12:35 AM in response to Loner T

Good day Loner T

Thank you for your help,

I managed to restore my computer to exactly what used to be on the boot camp partition, as it was before, using system image and a repair disk,

Now what I see from the window explorer is NTFS, but with the same old capacity, and the same info on the disk management, even though I increased it's size.

But from the MAC side I see the boot camp with the new size but still Fat 32, and to my surprise it is completely empty with no items, I even tried to save a document in it, and was saved with no problem, which is impossible with NTFS.

What do you think went wrong? I can repeat the procedure again.

Reply

Answer 7

Loner T

Level 9

59,536 points

May 31, 2015 4:18 AM in response to faridfromchicago

Can you post the output of the following Terminal commands?

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.

Reply

Answer 8

Jun 1, 2015 9:08 PM in response to Loner T

Here are the Terminal commands:

diskutil list:

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *250.1 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_HFS Machintoch HD 149.2 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Basic Data BOOTCAMP 100.0 GB disk0s4

diskutil cs list:

No CoreStorage logical volume groups found

sudo gpt -vv -r show /dev/disk0:

sudo fdisk /dev/disk0:

both required a password which password should I provide?

Reply

Answer 9

Jun 1, 2015 9:30 PM in response to Loner T

potential data loss due to "abuse" of the command.

am I going to lose data when using the sudo command?

Reply

Answer 10

Loner T

Level 9

59,536 points

Jun 2, 2015 4:45 AM in response to faridfromchicago

Enter your password, and since you are providing the exact commands that follow the sudo, these commands read configuration of you disk.

Reply

Answer 11

Jun 2, 2015 11:23 PM in response to Loner T

sudo gpt -vv -r show /dev/disk0:

Apples-MacBook-Pro:~ EOS600D$ sudo gpt -vv -r show /dev/disk0

WARNING: Improper use of the sudo command could lead to data loss

or the deletion of important system files. Please double-check your

typing when using sudo. Type "man sudo" for more information.

To proceed, enter your password, or type Ctrl-C to abort.

Password:

Sorry, try again.

Password:

I tried to enter my password, but it does't show on the window, and after this warning it goes dead, does't accept any character from the keyboard, I entered the password in full even though I can't see anything happen on the screen, press enter and got Sorry, try again, I wrote the command using copy and paste from your message, to avoid typing mistake, as you can see from the Warning it is too risky, is there any other way to solve my problem, I have an installation disk, but I don't want to have a new Windows, do I need to use it?

please help.

Reply

Answer 12

Loner T

Level 9

59,536 points

Jun 3, 2015 4:23 AM in response to faridfromchicago

Please remove the ":" after disk0. The commands are

sudo fdisk /dev/disk0

sudo gpt -vv -r show /dev/disk0

Reply

Answer 13

Jun 4, 2015 11:01 PM in response to Loner T

I didn't use the ":" and here is once again,

Apples-MacBook-Pro:~ EOS600D$ sudo fdisk /dev/disk0

WARNING: Improper use of the sudo command could lead to data loss

or the deletion of important system files. Please double-check your

typing when using sudo. Type "man sudo" for more information.

To proceed, enter your password, or type Ctrl-C to abort.

Password:

Sorry, try again.

Password:

Reply

Answer 14

Loner T

Level 9

59,536 points

Jun 5, 2015 4:55 AM in response to faridfromchicago

Your password is not echoed back to you. Do you have administrative rights to the Mac?

This is the output from my Mac. I was expecting similar output...

sudo gpt -vv -r show /dev/disk0

Password:

gpt show: /dev/disk0: mediasize=256060514304; sectorsize=512; blocks=500118192

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 500118191

start size index contents

0 1 MBR

1 1 Pri GPT header

2 32 Pri GPT table

34 6

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

409640 250392096 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

250801736 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

252071272 664

252071936 248045568 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

500117504 655

500118159 32 Sec GPT table

500118191 1 Sec GPT header

Reply

Answer 15

Jun 7, 2015 12:41 AM in response to Loner T

yes I have administrative rights, but I didn't use it then, I used a standard account which work for the first two commands, now I am using the administrator account and here is the other two commands results:

sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 30401/255/63 [488397168 sectors]

Signature: 0xAA55

Starting Ending

#: id cyl hd sec - cyl hd sec [ start - size]

------------------------------------------------------------------------

1: EE 0 0 2 - 25 127 14 [ 1 - 409639] <Unknown ID>

2: 07 25 127 15 - 1023 254 63 [ 409640 - 349999192] HPFS/QNX/AUX

3: AB 1023 254 63 - 1023 254 63 [ 350408832 - 1269544] Darwin Boot

*4: 07 1023 254 63 - 1023 254 63 [ 351678464 - 136718336] HPFS/QNX/AUX

sudo gpt -vv -r show /dev/disk0

gpt show: /dev/disk0: mediasize=250059350016; sectorsize=512; blocks=488397168

gpt show: /dev/disk0: Suspicious MBR at sector 0

gpt show: /dev/disk0: Pri GPT at sector 1

gpt show: error: bogus map

gpt show: unable to open device '/dev/disk0': Undefined error: 0

Reply