https://github.com/manno/stemcell-kernel-source/blob/29a05e61eb0afa0daaf84b615b13213fccabc7b5/patches.drivers/0001-usb-hub-Fix-auto-remount-of-safely-removed-or-ejecte.patch
Has this been accepted into the mainline kernel?
No it h(In reply to Mike Gilbert from comment #1) > Has this been accepted into the mainline kernel? No it has not. http://marc.info/?l=linux-usb&m=147826570528634&w=2 I would prefer to hear what Alan Stern says first.
If ejection is still an issue with later kernels, please let us know.
after umount should use below command to completely power-off the external disk: udisksctl power-off -b /dev/sdX