External hard drive not mounted after reboot

[happycadaver]

I would like to address an issue i have since Yosemite, which didn't really bother me until now.

I have an external hdd stack (USB 3.0), on which my media library is stored. If i start my iMac normally, this drive is mounted and iTunes is able to find it. If i make a reboot. the drive isn't mounted - but still powered on, since it does not go into standby during a reboot - and i can't use my library. The only option is to to a shutdown and restart. I even added the drive to my user account, which did help with an external drive a couple of years ago. Didn't help in this case.

Is there another solution to ensure the auto-mount of the external drive, regardless of the state of OS?

 

[Fishrrman]

I realize this answer may seem simplistic, but have you tried unplugging/reconnecting the USB cord after the reboot?

Something else to try:
Download Semulov, a small, free utility:
http://www.kainjow.com
When launched, it puts an icon in the menu bar. You can select from items in its list to mount and unmount volumes.

Does Semulov "see" your [after rebooting] "unmounted" volume?
What happens if you choose it in Semulov's list?

 

[happycadaver]

Yes, unplugging works, but i don't like making unsafe removals with USB equipment. Can't be healthy in the long run.

 

[Fishrrman]

OP wrote:
"Yes, unplugging works, but i don't like making unsafe removals with USB equipment. Can't be healthy in the long run."

In that case, follow this procedure:
1. Shut down computer
2. UNplug USB drive after the Mac has powered down.

then, when it's necessary to reboot:
1. Reboot Mac
2. When you get to the finder, re-plugin the USB drive.

This "works around" the "unsafe removal"...