lsblk odd results

[Grizzly]

22 February 2019  at 9:45, Colin Law wrote:
Re: lsblk odd results (at least in part)

>On Fri, 22 Feb 2019 at 09:30, Grizzly via ubuntu-users
><ubuntu-users at lists.ubuntu.com> wrote:
>>
>> 22 February 2019  at 9:35, Ralf Mardorf via ubuntu-users wrote:
>> Re: lsblk odd results (at least in part)
>>
>> >On Fri, 2019-02-22 at 08:11 +0000, Grizzly wrote:
>> >> 22 February 2019  at 8:32, Ralf Mardorf wrote:
>> >> > the output is correct, your reasoning isn't.
>> >> > 0 = true  or right
>> >> > 1 = false or wrong
>>
>> >> your own results confirm what I said
>>
>> >> Your SSD's return 0 & your DVD returns 1
>>
>> >> So by your reasoning you would have 4 rotational devices and a non rotational
>> >> DVD ?
>>
>> >Oops, you are right. However, the output is still correct, my reasoning
>> >wasn't.
>>
>> Your output was correct but my own case still seems off, the USB sticks
>> "should" not appear as rotational? and that brings the validity of my test(s)
>> into question, I could be wrong about which (if any) of my drives are SSD's but
>> not wrong about the USB sticks
>
>My suspicion is that the system cannot tell whether a USB stick is
>rotational or not (it may be a USB plugin rotational disc or plugin
>SSD), though I may well be wrong and shall not be surprised if someone
>corrects me.

You may well be right, at first I thought that it was because the USB I used 
was a Live USB, but I later tested with a bog standard Fat32 formated USB stick 
and still got the same result