"Request for unknown module key Magrathea: Glacier"

[NoOp]

On 03/12/2015 10:03 PM, NoOp wrote:
> On 03/12/2015 05:59 AM, Nick T. wrote:
>> Hello,
>> For the last 2 kernel updates I have received unknown key messages on 
>> the new kernel installation. Is this a known bug or is there something 
>> that needs fixing in my system?
>> dmesg follows:
>> 
>> [  966.411881] Request for unknown module key 'Magrathea: Glacier 
>> signing key: c7613364bc2aa19d70bf0c6e59bf8acaff65c879' err -11
>> [  966.412921] Request for unknown module key 'Magrathea: Glacier 
>> signing key: c7613364bc2aa19d70bf0c6e59bf8acaff65c879' err -11
> ....
> 
> It's helpful to let folks know what kernel and "2 kernel updates" you
> are talking about. However if 3.19:
> 
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1253155
> (Failure to validate module signature at boot time)
> see:
> <https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1253155/comments/17>
> <https://bugzilla.kernel.org/show_bug.cgi?id=92981>
> 
> BTW: using 3.19.0-031900-generic from
> linux-image-3.19.0-031900-generic_3.19.0-031900.201502091451_amd64.deb
> I get the same errors.
> 
> However using the same i386 kernel from
> linux-image-3.19.0-031900-generic_3.19.0-031900.201502091451_i386.deb
> I do not:
> $ dmesg | grep Magrathea
> [    2.166810] Loaded X.509 cert 'Magrathea: Glacier signing key:
> 614a4e8d47b8939882e8a92c769b20d966fa63b4'
> 
> I've not yet tried a different amd64 3.19 kernel, but will most likely
> try 3.19.1:
> http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.19.1-vivid/
> 
> 
> 
> 


3.19.1 clears the issue for me:

~$ uname -a
Linux g 3.19.1-031901-generic #201503080052 SMP Sun Mar 8 00:54:35 UTC
2015 x86_64 x86_64 x86_64 GNU/Linux
$ dmesg | grep Magrathea
[    0.922583] Loaded X.509 cert 'Magrathea: Glacier signing key:
f6e44eefe0b3323a7a9c2576cad3252ee3ee7cfc'