I have four entries but and EFI installation? Winclone also suggests to run SysPrep prior to creating the image. This is confusing based on what you said about an EFI installation. Disk Utility reports that the EFI installation is error free. Winclone cautions to check the disk for errors before creating an image. That means I am using a hybrid MBR (Master Boot Record). I assume that N=0 because I only have one hard drive. I have one large partitioned hard drive with OS X on one partition and Bootcamp on another. OK, so I am new to the apple hardware community. All have been Hybrid MBR installations, so far. I have not seen any reports of Yosemite+EFI Windows running into any issues. Create a thread on the forum, if you run into any issues.ĩ. Restore Bootcamp/Windows from step #3 to the now Yosemite machine. BA does extra work with a Hybrid MBR which conflicts with a Winclone restore.ħ. This is done via Disk Utility (not Bootcamp Assistant). Create a FAT32 partition on Yosemite machine which is about 4-8GB larger than the size of the original Bootcamp/Windows. Use Bootcamp Assistant on the pre-Yosemite machine and remove Bootcamp/Windows.Ħ. Winclone supports Finder drag-and-drop to make such copies. Make a second copy on an external disk for safekeeping. Create a Winclone image of every Bootcamp/Windows installation that you want to run on Yosemite, on a non-Yosemite machine. It is probably the best USD29.99 you will spend on a non-Apple product, if you are a Windows user on a Mac.ģ. An EFI installation is supported on UEFI models, which are typical late 2013+ Macs.Ģ. Your GPT should have at least 4, most likely 5 entries (EFI/ESP, OSX, Recovery HD, MSR, MSD) for an EFI installation. If you see more than one entry (usually four entries), then you are using a Hybrid MBR, if you see a single entry, then it is an EFI installation and is on a pure GPT disk. Check if you are using a traditional Bootcamp windows using sudo fdisk /dev/diskN (where N is your Bootcamp disk). But I would like to have all of my apple computers on the same version of OS without having to "Nuke and Pave"? How do I keep my windows install in bootcamp? I found a very knowledgable person on another thread helping people after the fact. I think I saw a post from you stating that Apple may eventually fix the destruction of bootcamp after upgrading to Yosemite in a later update. Especially when you reach the "limit" of times that you are allowed to install after a disk crash etc. Windows installs can be rather challanging. I really don't want to go that direction again.
I ended up doing the "Nuke and Pave" option. My experience of the upgrade process not being as straight foreword as it should be was going from Mountain Lion to Mavericks. I am starting this thread in an effort to help others with upgrading Yosemite OS with a bootcamp Windows partition.
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