Booting into BIOS from bootcamp

After having created a bootcamp partition, I realized my original partition size was too small. To repartition I decided to start from scratch and remove the old partition and start a new partition, planning on using a system image to restore the backup of my old bootcamp. All went pretty smoothly until I was trying to use the restore and it told me:


"To restore this computer Windows needs to format the drive that the Windows Recovery environment is currently running on. To continue with the restore shut down this computer and boost it from a Windows installation disc or a system repair disc and then try the restore again."

In light of that, I made a system repair disc in the form of a usb; however, now I can't get into the BIOS menu in order to change the boot order to boot the usb in the first place.

Help...! I've been at this for hours and can't seem to find a way. The UEFI "tile" for booting is also not appearing so I can't boot it up that way, and I apparently can't press F2 fast enough to boot into BIOS that way either. I've ran a bcdedit in command which came back that it is .edi so it should be able to boot but I don't know how....

If anyone has come across this problem and knows a solution that would be greatly appreciated.

MacBook Pro with Retina display, OS X Yosemite (10.10.1)

Posted on Feb 17, 2015 11:17 PM

Reply
25 replies

Feb 19, 2015 6:55 PM in response to Loner T

Last login: Thu Feb 19 19:47:46 on console

Alexs-MacBook-Pro:~ Perry$ sudo fdisk /dev/disk0

Password:

Disk: /dev/disk0 geometry: 30515/255/63 [490234752 sectors]

Signature: 0xAA55

Starting Ending

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

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

1: EE 1023 254 63 - 1023 254 63 [ 1 - 490234751] <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

Alexs-MacBook-Pro:~ Perry$

This is my readout, which looks like it might already be in EFI? Unless the example you had was not an example of EFI?

How do you get the GPT readout?












Feb 19, 2015 9:00 PM in response to Loner T

gpt show: /dev/disk0: mediasize=251000193024; sectorsize=512; blocks=490234752

gpt show: /dev/disk0: PMBR at sector 0

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

gpt show: /dev/disk0: Sec GPT at sector 490234751

start size index contents

0 1 PMBR

1 1 Pri GPT header

2 32 Pri GPT table

34 6

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

409640 214843744 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

215253384 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

216522920 1880

216524800 273709056 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

490233856 863

490234719 32 Sec GPT table

490234751 1 Sec GPT header

Alexs-MacBook-Pro:~ Perry$

That is my output. So I just want to be sure, I am NOT in EFI Windows? So I should proceed with what you said before? I just want to be sure before I end up undoing something that was already right.

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Booting into BIOS from bootcamp

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