Additional data--as an experiment I set up a Debian VM in VirtualBox. Debian instantly sees the device as /dev/sdb. And once I disconnect it from Debian, Ubuntu can then see it and mount it. The problem seems to be Ubuntu-specific, and some action other operating systems take would appear to put it in a mode which can then be detected by udev. (I'm not developer, I'm just speculating.)
No developer has commented on this since April. Any chance of a fix?
Additional data--as an experiment I set up a Debian VM in VirtualBox. Debian instantly sees the device as /dev/sdb. And once I disconnect it from Debian, Ubuntu can then see it and mount it. The problem seems to be Ubuntu-specific, and some action other operating systems take would appear to put it in a mode which can then be detected by udev. (I'm not developer, I'm just speculating.)
No developer has commented on this since April. Any chance of a fix?