External hdd won't eject properly since El Capitan

Well, I spoke too soon, the notifications are back.

I will file a bug report as well - the more, the merrier.

IMO, Apple is trying to move all external drives to the cloud so they can charge you for storage. These little bugs are no accident.

Apple...the new Microsoft.

Hi,

I have been having the problem Disk Not Ejected Properly, while using Time Machine, since I migrated to El Capitan. After trying many things in my case I found that when I quit the Desktop version of DropBox (in the Menu Bar), the problem was gone. I wrote to DropBox to see if they can help with the problem. I will post it if they find a solution. I hope this will help some of you having this annoying problem.

Regards,

Giovanni

Hi Koen, I followed your suggestion and submitted a Bug Report to Apple.

My scenario does not need a reboot most times as once I accept the window informing me of Disk Not Ejecting all seems to continue as normal. What I do sometimes get however is my Back Up Disk Icon is moved to another part of my desktop and replaced by a second "Hard Drive" icon and to fix that I need to do a reboot.

Thank you for your response.

Wow - turning of Dropbox works here as well. Thanks for finding that.

Again, I spoke too soo - the notifications are back 😟

Hi Koen,

The failure repeated in my machine too. However I received an answer from Dropbox and it may work. They suggested to remove the local DropBox folder from TimeMachine (OS X Yosemite: Exclude items from a Time Machine backup). The link explains how to remove a folder from Backup.

It has some logic on the issue, if the backup is waiting for the Dropbox folder to sync it may be causing a timeout. For me it has worked up to now.

Hope it works for you

Giovanni

My problem is similar... I have both a connected HDD for Time Machine backups, alternating with a Network Drive (and Drop Box).

When I walk away from the machine (a MacBook Pro, recently upgraded to El Capitan), the computer does it's thing for a while, then tries to sleep after an hour. When I return, I wake it to find 2-3 messages saying that certain Disks (including the Time Machine HDD and the Network drive) were not ejected properly. I have NOT seen this with Dropbox (yet).

NOTE: When I put the machine to sleep manually, then wake it, I do NOT see the problem. Only after it goes to sleep on it's own (after an hour of doing whatever computers do when we're not around).

I have the same problem too after upgrade to EI Capitan😠

Alas, I'm still having the issue.

Think we have to wait for an Apple fix, maybe hopefully very soon. It is happening to a lot of users but the circumstances vary so just have to grin and bear it until it's fixed.

1) Hold "D" key when start the mac, the hardware test is normal.

2) Hold command R to restore EI Capitan again, the external hdd is still has the same problem...😟

3) Use another computer to backup my external hdd's data first, I formal erase the external hdd again, thats work and no warning again.🙂

Does anyone know if tonight's update to 10.11.1 fixed the problem?