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iPhabio Author

Level 1

11 points

Disk not ejected properly

Hi I'm having this issue since I upgraded to Mavericks where almost every time I put my computers to sleep I get the "Disk not ejected propoerly" message and every disk but the system one is not mounted and cannot be found by Disk Utility.

I have a Mac Mini late 2009 and a Macbook Pro 15 mid 2009 and I'm having this issue in both machines. Never had any issues before in any of my machines, not in Leopard, Snow Leopard or Lion.

On my Mini I have two external USB drives and on my MBP I have a SSD, where the system is installed, and a HD (I replaced my optical drive with a bay to install the extra disk).

I researched the issue and found a couple of threads where people sugested to buy a 3rd party app that would unmount the disks at sleep and remount them at wake, but I think this shouldn't be a issue, since it never happened with any version of OSX I had used before.

Is anybody else having this issue as well? Is there any word from Apple on this subject? Can I hope for a fix?

Thanks

MacBook Pro, OS X Mavericks (10.9)

Posted on Oct 28, 2013 9:55 AM

Top-ranking reply

Robster50

Level 1

40 points

Posted on Jan 25, 2014 12:05 AM

Hi All

I am not sure if the fix I am about to relay will work for everyone here BUT it has certainly worked for me!

I have a new MBPr which I migrated from my old MBPr and immeadiatly started to get the problems described in this forum.

I have investigaed most of the solutions suggested here and elsewhere without any success, I did install Jettison but while this masked the problem it actually stopped most of my backups working!

So I called Apple support and pushed it very hard until I had a Teir 2 person on the line and she was incredibly helpful, supportive and instisted she woudl ge the problem fixed and she delivered.

She pinned the problem down to the migration from the older machine/prefs corruption.

I will try and record here exactly what we did.

Instructions

1. Pull out your ethernet cable and disable WiFi and any other network connectivity you have.

2. Open Finder, go to your computer and then select you Macintosh HD (or whatever you have renamed it).

3. Go to Macintosh HD - Library - Preferences

4. Scroll all the way to the bottom of the list and you ewill see a folder called SystemConfiguration

5. Pull this folder onto the desktop.

6. Go to System Preferences - Sharing and change the name of your computer, even just a litlle bit.

7. Reboot

8. Re-enable Wifi and Ethernet

9. If you have installed Jettison, remove it and remove it from your start up items.

You shoudl be good to go.

My machine was constantly ejecting my USB drive, even if left for onnly 10-15 minutes, since doing this I have not had one single ejection and I am into 48 plus hours of run time.

If you like what Jettison does but don't want to eject the disks everytime your computer sleeps and it will!, then try UnDock from the Mac App store.

Very similar functionality BUT it is a manual process.

In my case if I am going to be going out I will simply use the key combo I hae seletced Ctrl-Alt-Command plus U and all my external devices undock.

I really hope this helps one or more you you guys.

Robin

View in context

493 replies

Oct 28, 2014 2:14 AM in response to alpshiker

Read post above??

Oct 28, 2014 2:34 AM in response to alpshiker

Some things have to remain a mystery...until they're not. 😎

Nov 3, 2014 8:45 AM in response to iPhabio

I wish I had come to you earlier. Worked a treat.

Thanks

c41

Level 1

4 points

Nov 5, 2014 2:17 PM in response to LaraCroft_NYC

LaraCroft_NYC wrote:

Is anyone reading this stuff?? --->>>

So try it: Power-down for at least 2 hours.

Yes, I power down for 8+ hours every night.

Nov 5, 2014 4:55 PM in response to alpshiker

Sadly won't load on Yosemite - shame.

Nov 6, 2014 7:55 AM in response to s_w_i_t_t_e_r_s

Completely remove ALL power (AC and/or battery) from Mac and all peripherals for >2 hours.

(Don't just shut down / turn off.)

How is that? Good luck!

Nov 7, 2014 12:41 PM in response to Bruce Mcisaac

24 hours + on and still ok !!! Fingers crossed.

Nov 7, 2014 12:55 PM in response to Bruce Mcisaac

Nov 12, 2014 6:10 AM in response to wms44

Your reply from Inateck is not true. ALL of my peripherals (except USB hubs) go to sleep with the Mac Pro...and I have a lot.

Nov 12, 2014 9:45 AM in response to wms44

By any chance, did you remove all power from Mac and drives, as in my earlier response?

wms44

Level 1

21 points

Nov 18, 2014 1:47 AM in response to s_w_i_t_t_e_r_s

KenV54 - did you try a different com cable?

Nov 18, 2014 7:46 AM in response to s_w_i_t_t_e_r_s

I am trying Jettison (free 15-day trial) and there are some times I still get the DNEP message. It works right more often than without Jettison, but it doesn't seem to be a perfect solution.

Linda