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Essentially you have a CoreStorage Volume Group instead of an old-style partition scheme. You shouldn't use Disk Utility to modify the CSVG. To shrink your CoreStorage Volume Group to get some unallocated space to install Linux or EFI-Windows just use an undocumented diskutil command: diskutil cs resizeStack LVUUID size The command expands or shrinks the ...


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There is a very simple reason for the lack of a resize handle on your current drive. Notice, in your screen shot, that in the left hand pane you have a disk labelled "Macintosh HD" which also has a volume labelled "Macintosh HD". With the disk highlighted, look at the bottom of the window and you can see that the disk is of the type "Logical Volume Group". ...


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you don't create partitions on empty space. You have to first create a partition by clicking the plus, resizing and then clicking apply. The resize handle shows up upon deleting partition. If that doens't work, there are several solutions, that I am listing because I stumbled upon them: Problem 1: Shows: Filesystem verification failed. Solution 1: Shut ...


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The steps you linked skip a crucial point - you have to actually create a second partition. I think it's assuming you already have a second partition that you want to format for installing Linux. In Disk Utility: Click on the hard drive on the left. Note that each drive has (at least) two lines: an identifier, such as "251 GB APPLE SSD SD02...", and a ...


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To rebuild your Fusion Drive almost non-destructively you have to convert your main volume (the HDD) to a Core Storage Volume Group first, then add the SSD as a physical volume and expand the Logical Volume to the full size of the now expanded Volume Group. All data on the SSD (volume: Untitled) will be erased, so back it up. Backup your main volume and if ...


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Basically the same applies as in this question and the accepted answer. The only difference is that you have a fusion drive and therefore some DiskIdentifiers differ. Additionally you have a blocking partition on your HDD with certainty which has to be removed. There is one undocumented command to resize or expand a CoreStorage volume group and an inherent ...


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BEFORE you follow my instructions, take a Time Machine backup of everything. I'm going to have you destroy and recreate the Fusion Drive, which WILL erase your data. To see these instructions with pictures, you can go to the sources I used: Splitting a Fusion Drive and creating your own Fusion Drive. Boot into the Recovery HD (or from a bootable drive, if ...



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