I installed Windows 10 (bootcamp) before upgrading to macOS Sierra. Everything worked fine until I wanted to increase the harddisk size of the Windows partition. I used the Disk Utility to decrease the size of the Mac partition, which resulted in xx GB of unused space.
Boot Camp Mac Os High Sierra
This problem is happening because windows can't recognize the partition with high sierra on it.When Apple updated to the new os, they switched to a new file system called APFS.Unfortunately windows can't recognize a partition with this file system on it. For now you'll have to switch by holding down the option key at startup and selecting the os you want from there.You can still select windows from the startup disk options in system preferences from mac os, but you'll have to use the hold option method to move back to mac from the windows side.
Steps to recreate the issue on a mid-2013 MBA running macOS 10.13 with primary macOS volume formatted as APFS and Bootcamp partition running Windows 10 formatted as NTFS:1. Boot into Windows in the Mac's Bootcamp partition.2. From the Windows Bootcamp utility menu, choose "Restart in OS X."3. If prompted, choose OK to verify.4. The system fails to restart from Windows and a dialog box appears with the message, "Could not locate the OS X boot volume."
the situation is even worst then you describe. I recently purchased a brand new MacBook Pro 15. you can not set up bootcamp from fresh if you have high Sierra . on top of that apple support does not let you to bring it to a store. instead they try to waste your time with a multiple layer of technicians on the phone each claiming they are more capable then the previous of who already wasted 2 hours of your life trying some bizarre thing. Like "Turn Off Time Machine. Let your Mac wait for 90 Minutes to settle" before your try again setting up "Bootcamp and disc partition. And of course it does not work. They also enjoy asking the same question even when you give them the your previous case numbers. All they need to do is to read the case to see that those questions like "Have you used a back up when your set up this Mac ? Answer NO. already there. but instead of reading they enjoy getting in to your nerves. They can not understand the fact that Apple does not pay for our time as Clients.There is something different with the way High Sierra organizes the File System and Bootcamp can not digest it. I describe it this easy but those highly paid genius engineers in Apple neither admit nor share it.I am out over 3K for a brand new MacBook Pro + AppleCare which I can not use for my business because I can not install Bootcamp. Do you think it is fair?
I ha a similar issue and got two responses from Apple after emailing Tim Cook. They are below, hopefully they will be useful. I did things slightly differently, basically boot into recovery mode, the open disk utility, thus should allow you to remove the boot partition or bootcamp. It goes without say BACKUP BACKUP BACKUP before trying this as you may have to format both partitions/containers and then delete one and resize the on the disk utility lets you. However, the official method from Apple is as below
Fusion 8.5.8 isn't working with Bootcamp partitions on High Sierra. I can dual boot to either OS X High Sierra or Windows 10, but the existing Bootcamp VM blew up immediately after the OS X 10.13 update. When I try to recreate it, Fusion is telling me "... could not find any Boot Camp volumes on this Mac."
I have run into a snag, and am not sure how to resolve it. When I get to the step of selecting the bootcamp.vmdk file as the existing hard disk file to use, it gives me this error message.Failed to open the disk image file /Users/macuser/bootcamp.vmdk.
When you hold the option key during boot, you should see all drives capable of booting. If you have both an internal bootcamp partition and an external bootcamp drive, you should see both as well as the Mac OS partition. If you are not seeing the external EFI drive then it is not bootable and something is wrong with it.
Are you sure? If you cloned the internal bootcamp partition to the external drive, it will look the same until you make some changes to it, like installing additional applications or UI personalizations. You can also easily tell by opening Windows Disk Manager.
I went back to the previous step that directed to eject the external drive. After doing that, I checked in Disk Utility and was not able to see the disk. I removed and replaced the disk and it showed in Disk Utility . I unmounted it in Disk Utility and ran the command again. This time it mapped, but mapped to /users/my name/bootcamp.vmdk. When I continued to the VirtualBox, I ran into another error.
Many Thanks for the very clear instructions! Will all this work on a previously partitioned external drive? For example, a 1TB partitioned drive of say, 500 gb MacOS extended, and the other a 500 GB partition for the Windows external bootcamp option(Fat32/NTSF)? Alternatively, with the newly created NTSF Windows/Bootcamp setup on a 1TB external, how can the Mac read/write for general backups and file storage purposes the remainder NTSF portion?
I tried a few ways but only this worked for me:Needed: USB flash drive 8GB or more, Windows iso, VirtualBox + Extension Pack, WinToUSB ( ) and of course the external drive. WinToUSB free works with Windows10 Home. Please read info on their site for other Windows versions.Use Bootcamp Assistant to download the Windows Support files (you might need to click in the menu for Action).Use Disk utility to format the USB flash drive to exFAT and the external drive to GUID HFS+ or FATCopy the Windows iso, Windows Support files and WinToUSB to the USB flash drive and eject.Install VirtualBox and Extension Pack. Start VirtualBox and make a Windows10 virtual machine (VM), be sure the USB port is enabled.Start the Windows VM. Attach the USB flash drive and the external drive that you want Windows on.Copy the files from the flash drive to the VMs desktop.Install WinToUSB. Open WinToUSB and select the Windows iso as source and the external drive as goal. Let WinToUSB do its work. Wait until it says 100% and then (important:) click HOME. Now copy the Windows Support files to the external drive.Close the VM and VirtualBox and reboot. As soon as you hear the startup sound hold the Alt-key until you see the options for startup. Choose the EFI disk.Now you have to install Windows. When finished, open the Windows Support folder and click setup to install the Bootcamp-drivers.Done!
According to -os-catalina-doesnt-see-boot-camp-on-external-drive.2213418/ you may need to go into System Preferences > Security & Privacy > Privacy > Full Disk Access and click on +, then select System Preferences from your Applications folder.
I wonder if this would work with a partition in the internal drive. I have a SSD drive which is not the original Apple one (it was too small) but the new one does not support Bootcamp. I wonder if this procedure may help me install Windows 10 in a different partition of internal disk without using bootcamp
Failed:When Creating bootcamp.vmdk, I was getting I/O read error showing as its already in use.Solution:Make sure the External Drive on whom you want to install windows is ejected and run the command in terminal again.
Solution:I was not able to find its solution so far. Maybe its because bootcamp expects the installation of windows to be on MAC drive rather then on external drive.Any help in solving this problem will greatly help.
I created the bootcamp.vmdk file in my home folder, but once I eject the external drive and go into VirtualBox and get to the hard disk sheet, I can browse to the bootcamp.vmdk file, but not select it (its greyed out). What I am missing??
This is the error message I got:Last login: Sat Jul 21 10:05:56 on ttys000Johns-MacBook-Pro: johnscardina49$ sudo VBoxManage internalcommands createrawvmdk -filename bootcamp.vmdk -rawdisk /dev/disk4Password:RAW host disk access VMDK file bootcamp.vmdk created successfully.Johns-MacBook-Pro: johnscardina49$ sudo /Applications/VirtualBox.app/Contents/MacOS/VirtualBoxobjc[2318]: Class FIFinderSyncExtensionHost is implemented in both /System/Library/PrivateFrameworks/FinderKit.framework/Versions/A/FinderKit (0x7fff96ea28b8) and /System/Library/PrivateFrameworks/FileProvider.framework/OverrideBundles/FinderSyncCollaborationFileProviderOverride.bundle/Contents/MacOS/FinderSyncCollaborationFileProviderOverride (0x1138e9dc0). One of the two will be used. Which one is undefined.objc[2318]: __weak variable at 0x7fe82ac4a4a0 holds 0x4031000000000000 instead of 0x7fe82ad656e0. This is probably incorrect use of objc_storeWeak() and objc_loadWeak(). Break on objc_weak_error to debug.
Regarding trackpad not working(soft click), its some sort of problem with windows 10 user accounts.Go to user accounts, create another account (administrator), log off from your default administrator account, log in to your newly created administrator account, go to user accounts and change the default account from administrator to standard. Now log in to your default (now standard account) and bootcamp control panel in the task bar should work fine. After the trackpad, you can again change account to administrator, if needed.
I followed all the steps, all seemed to work, but the external disk is not recognized as a boot disk. I already had Bootcamp set up with WIN10 could this be an issue? I did take the disk to my other MAC and attempt to boot to the disk, but is did not come up as a boot disk. I did not have Bootcamp installed on that MAC. So, wondering if the last format to the WIN erased the boot sector?
HII have problem with VirtuakBox.In the Hard Disk sheetUsing bootcamp.vmdk file from home folderi have error:Failed to open the disk image file /Volumes/DATA/bootcamp.vmdk. 2ff7e9595c
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