I've installed Stretch(4.9.0-3) in a standard PC 2 weeks ago and all works perfectly fine.
But I recently downloaded a new DVD(3) same version to install this time in a usb-stick (3.0) without /swap.
Note: I have to say that it's much better install 1dvd then use internet because the installer looks bugged when ask to change to dvd#1, dvd#2 then dvd#1 again and never ask for dvd#3
So, I have a problem every time that I need to invoke the root from the standard user account: e.g. can't unlock account settings neither invoke root from the terminal and when open Software & updates nothing happens although I can check update from Settings->Details->CheckForUpdates.. there is nothing to update so I'm not sure I the standard user can update, probably not, but will ask for admin or what?
Although another StackExchange-user has a similar issue: he did mention to sudo and lot of answers are related to that.
You will not see something like default at options because I explicitly change that. And I think that that-was-my-mistake:
At the /root installation stage there was a problem with the installation options. I'm not sure if it was -noexec- and I unchecked it, or if it was -nodiratime- and I unchecked that but it was marked anyway in some other configuration. What I'm plenty sure is that I uncheck one of them and the installation process continue as normal.
Well.. that's my problem. Beyond that my Cross-Hardware environment works perfectly well. I hope a long time but the truth is that I don't know enough about SSD configuration. OH!! by the way I'M NOT USING SWAP
What I will do: If you think there is no configuration problem with that mount options I will try from the tty in a to try to fix this without re install .
Please note that it makes no sense to reinstall if I'm doing wrong the mount options (that's would be my question)