update manager refuses to upgrade kernel to newer version

[Ralf Mardorf]

On Fri, 12 Feb 2016 09:26:54 -0500, Gene Heskett wrote:
>On Friday 12 February 2016 05:35:55 Spyros Tsiolis wrote:
>
>> Hi Ralph :  
>> >  The culprit seems to be
>> >  /usr/sbin/grub-probe.  
>>
>> Arrrghh  !!
>>  
>> >  I
>> >  don't think so, usually it doesn't matter if you get
>> >  firmware
>> >  warnings.  
>>
>> That's what I thought.
>> I too, don't think it's the drivers for the rtl chipsets.
>>
>> What do I do now ?
>> What if I try and put grub-probe in "/usr/sbin/" ?
>> Will it shut up ??
>>
>> s.  
>
>That is where it lives here, on a wheezy system.

And it does so on the OPs machine, but it can't find /, it thinks
that /dev might not be mounted, but /dev is mounted, it's a known GRUB2
bug when trying to update Ubuntu running in a container.