Comment 52 for bug 792085

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Nick Sharp (njsharp) wrote : Re: Automatic remount of safely removed drive

I have this problem on 12.04 with a new Seagate 3TB usb3 external drive ON A USB3 interface. Will test later on 14.04; waiting for final release at present.

For me, safe removal never works (drive always returns) unlike others above, who find it does work second time.

I reduced the problem a little by:

System Settings/Details/Removable Media/Never prompt or start programs on media insertion (TICK)

and dconf-editor:

org.gnome.desktop.media-handling
automount (UNtick)
automount-oepn (UNtick)
automount-never (TICK)

Of course, then I have to open disk utility and mount drives by hand and open the mount point by hand. No big deal.

Interestingly, the problem does not occur if the drive is connected via a USB2 interface, but that rather spoils the point of having a USB3-capable drive! In fact, it dropped the read time to about 1/5th but made almost no difference to the write time, so if your use of the drive is primarily to archive files, it seems: connect via USB2 interface is quite a good idea for now!

I suspect that the issue is related to the USB3 interface, both in the drive and the PC.

A Seagate ST2000DM001 (2Tb USB interface) external drive CONNECTED ON A USB3 INTERFACE DOES behave correctly on SAFE REMOVAL and does NOT reappear in the list in disk utility.

(probably off topic) It is interesting to note that on my drive (Seagate STNV3000300) the interface at the disk enclosure is a PAIR of connectors side by side, not a simple mini or micro USB peripheral interface.

Nick Sharp