Category: OSX

Fix – Updated from OSX El Capitan Gold Master to Final Release, and beta update keeps showing in AppStore

So, if you installed OSX Beta or GoldMaster versions, your account enrolled for pre-release updates.

Now, you installed OSX El Capitan from app store (final release, 10.11) but in AppStore -> Updates, Developer Beta keeps whowing you to update to version 10.11.1. This is because your account has now enrolled to pre-release updates.

Screen Shot 2015-10-01 at 9.39.05 AM

To fix this, go to System Preferences ->

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OSX Disk Utility Erasing/Formatting stuck at “Unmounting disk …”, “Couldn’t unmount disk”

If you are trying to format/erase a disk and disk utility/diskUtil is stuck at “unmounting disk”, probably “fsck_hfs” is stuck in a loop, trying to repair it before mounting.


I’ve seen solutions where you must boot from an external operating system, bla blah. Too complicated and time consuming.

To fix this fast and easy, start formatting, wait for “unmounting disk” message to appear, then go to Terminal, find the process with the following command

You’ll get something like

Then …

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