I have a similar setup at home.  I have a dozen or so boot drives with
various OSes on them that I can throw into my primary server.  Mostly Linux
Distros, BSD and a single Windows SSD for gaming (yeah, I know...).  In my
case I have a couple of non-SSD drives in this server that are data only.
That way, I know which drive is the boot drive.

What I don't get is why you would have such a setup in your lab.  It seems
to be way more complicated than it needs to be.  Granted, I have no idea
what your lab is for, but I'd never have movable boot drive and a static
one in the same system.

However, if I did, I'd make the hostnames unique.  To me that would be
simpler than mucking the UUIDs of the drives.


On Thu, Sep 1, 2016 at 2:51 AM, Kevin Wilson <wkev...@gmail.com> wrote:

> Hi all,
> I have several machines in my lab, all of them running Fedora.
> Some of the have both SSD and non SSD drivers.
> Since the setup is dynamic (sometimes I transfer disks from machine to
> machine), there are cases that the SSD drive is one machine is
> disconnected/moved to a different machine, and the boot is done
> from the other non SSD driver (on which also Fedora is installed).
>
> Is there a way to know whether to boot was done from SSD or not ?
> (I know I can try to read the product name of the device from which
> boot was done, but in many cases this is not enough to know straight
> away whether it is SSD or not.
>
> Regards,
> Kevin
>
> is not
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