MacBook Air :: OS X (10.9.5) Disk Utility - Resize 2 Partitions
Dec 2, 2014
I'm using OS X 10.9.5, with Disk Utility version 13.
One of my internal drives has two partitions of 1 TB each.
Can I use Disk Utility to RESIZE one of the partitions to 1.75 TB?
Looking at the DU interface instructions, it says "To resize a partition on the selected disk, drag its resize control and click Apply."
However, Disk Utility says "To enlarge a partition, you must delete the partition that comes after it on the disk, then move the partition’s end point into the freed space. You can’t enlarge the last partition on a disk."
So, all I want to do is Reduce the size of the bottom / last partition; then, Increase the size of the top / first partition.
Can I safely do this by first dragging the last partition's "resize control" then dragging the first partition's "resize control"?
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Sep 4, 2009
I recently replaced Leopard 10.5 with a clean installation (not an upgrade) of Snow Leopard 10A432 (SL) on my Intel Core 2 Duo MacBook (aluminum, 2GB RAM). Under Leopard 10.5 I was able to use Disk Utility (DU) to dynamically re-size existing volumes on USB hard drives. But under SL I am unable to do so. While I am able to replace all existing partitions on a USB drive with a new set of partitions and resize them prior to their creation by dragging the slider bars, once created, DU will not let me dynamically resize the new partitions. Doing so was easy with DU under 10.5. For example, after I re-partitioned a USB drive with DU under SL and created 2 partitions, I was able to make the top partition smaller by dragging the bottom edge upward from the lower right corner, but there seems to be no way (and no slider bars) to adjust the size of the lower partition to use the space freed by having made the upper partition smaller. In fact, although the upper partition reports a smaller size, when clicked on, the border around the upper partition still includes the range defined by its initial, larger size. There also seems to be now way (no slider bars) at the top edge of partitions that would allow them to be expanded/contracted from the top down. Has anyone else encountered these issues? Any thoughts/suggestions as to how to resolve them? Are these known issues? I have searched but not come across it as yet.
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Apr 2, 2009
Originally I had 2 partitions on the internal 500gb hd in my MBP, one was 455gb the other was 10gb that I used to mess around on. I do not remember what format the small partition was in last, it may have been FAT32. I wanted to delete the small partition and consolidate into one partition. My OSX partition is formatted macos extended. I went to Disk Utility and deleted the small partition by selecting it and clicking "-." There was grey space where the partition used to be. No problems here. Most of the options in Disk Utility are greyed-out.
I cannot select a different partition scheme. When I try to resize the partition either by dragging it to cover the grey space or by manually typing in a larger size, there is no way to apply the changes. The "Apply" button is continually greyed-out (See Image). If I try to resize the partition and then close the window, Disk Utility alerts me that I have an operation in progress and that unsaved changes will be lost. Disk Utility is not letting me resize my main OSX Partition, it appears that I do not have appropriate permissions to make this change - I am the only user/admin of this machine.
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Feb 3, 2010
I having trouble resizing an external harddrive of mine. It is a 500gb Lacie drive, and inside it has two partitions: time machine (250gb) and my stuff (250gb). I want to make time machine 150gb and make My Stuff occupy the remaining space. However, when I enter Disk utility, there is no dot between the partitions that I can drag. When I pull the corner, the disk gets smaller, but after resizing there is still a blue rectangle outlining where the old disk was. The partition "time machine" is used for time machine backups, but I have deactivated backups in Preferences, and Time Machine is currently "off". I have included an image for clarification. How can I resize the partitions the way I want them?
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Jun 23, 2010
Seems that I have messed up my Macbook Pro hark disk. Opening disk utility on macosx 10.5.8 shows that my disk in partitioned as this:
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Here's a screenshot of the partition table
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The most likely partition to go is the Win7 one and I would like to either add it to Snow Leopard or the Shared Partiition. That is, I would like to increase the size of one of them.
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