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Hack Bootmgr to boot Windows in BIOS to GPT

bios gpt bootmgr winload

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#351 steve6375


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Posted 11 February 2017 - 03:09 PM

I tried booting from the C: partition 4 with umbr + reg fix and same issue - no hibernate.  :(


I have written up experiments so far http://www.rmprepusb...s/bios_gpt_boot


Would be nice to get Hibernate working!

#352 devdevadev


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Posted 11 August 2017 - 03:03 AM

AIO Boot now supports installing Grub2 on GPT disks including both HDD and USB. After installing Grub2, you can boot the GPT disk in Legacy BIOS modeWindows Boot Manager does not support booting into Legacy BIOS mode on GPT disks. AIO Boot uses wimboot, which consumes more RAM.

  1. Install AIO Boot to a partition on GPT disks.
  2. Grub2 requires a BIOS partition on GPT disks. We will create a small partition of 1 to 10MB. You do not need to format and do not need to mount the drive letter for this partition. For USB, you can use the MiniTool Partition Wizard to create a second partition. On Linux, this partition will be flagged as bios_grub. USB-multiple-partitions.jpg
  3. Run AIOCreator.exe, select Grub2 from Bootloaders. The tool will list the partitions that you created in step 2.
  4. Select the partition and click OK to install Grub2.


  5. .Good luck!

Also tagged with one or more of these keywords: bios, gpt, bootmgr, winload

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