New version of Disk Utility can fix "overlapped extent allocation" errors As noted in Knowledge Base article #25770, the version of Disk Utility (10.5.1) included with Mac OS X 10.4.2 can fixed ...

You are about to transfer some important files from an external drive to your Mac, and suddenly you get the message “Disk Not Ejected Properly” The transfer fails, and you have to start all over again ...

Apple's macOS, through UNIX, provides a variety of tools to keep your drives healthy, with one of them being the fsck Terminal command. Here's how to use it. fsck, or "file system consistency check," ...

We previously reported a problem with OS X 10.2.8 (build 6R65) where running Disk Utility's Repair Disk Permissions on some Beige G3 computers and PowerBook G3 laptops would result in a blank/black ...

I'm running Snow Leopard v10.6.8 on a Mac Book Pro 13" that I received for Christmas last year. Everything is fine with this computer but a couple weeks ago I went to open Disk utility because I ...

TL;DR - every external HDD gets "the volume /dev/rdisk[X]s1 [with UUID etc] was found to be corrupt and needs to be repaired" (it doesn't repair it). Even though those disks were fully erased and ...