Disk utility stuck on updating boot support partitions

However, even if the system seems paused for a long time, the routine should resume sooner or later.

Apple recommends using diskutil whenever possible, but sometimes diskutil may show an error it cannot overcome, in which case fsck may be successful.Optionally, click the [ ] icon if you need to add a partition, read more about that here This has been possible from Mac OS X Leopard onward (and obviously Snow Leopard, Lion, and Mountain Lion).As mentioned earlier, it’s always a good idea to back up important data before making adjustments to partition schemes, Time Machine is by far the most efficient way to do so.A word of advice: Resizing mounted boot volumes isn’t always the best idea in the world because there’s a tiny potential something could go wrong.Before you go messing around and resizing your partitions, be sure to backup your data using Time Machine or whatever other backup service you prefer and make a recent back up.

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