Different kernels on my servers?

[sktsee]

On Wed, 10 Jun 2015 09:29:22 -0700, Knute Johnson wrote:

> On 6/10/2015 09:03, sktsee wrote:
>> On Wed, 10 Jun 2015 07:43:54 -0700, Knute Johnson wrote:
>>
>>> So I was getting another server up and running in case my old one died
>>> and found they have different kernels.
>>>
>>> Old: Linux knutejohnson 3.2.0-30-generic #48-Ubuntu SMP Fri Aug 24
>>> 16:52:48 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
>>>
>>> New: Linux knute3 3.16.0-38-generic #52~14.04.1-Ubuntu SMP Fri May 8
>>> 09:43:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
>>>
>>> Both are 14.04.2LTS.  The new one had a kernel held back when I did my
>>> update and upgrade so I did a dist-upgrade but it was still a 3.16
>>> kernel before that.  The old computer was upgraded from an earlier
>>> version of server but that shouldn't stop kernel upgrades? Do I have
>>> something set somewhere to prevent my old server from upgrading the
>>> kernel?
>>>
>> Certain missing kernel-related metapackages will cause your kernel
>> package to be skipped during an update if there is a bump to the ABI
>> version of the updated kernel (going from, say, 3.13.0.24.27 to
>> 3.13.0.25.27). That's probably the case with the old server, unless you
>> pinned that version as Andrew suggested. For the new server, you
>> probably have linux-image-generic-lts-utopic installed since you have
>> its kernel running on your trusty server. You may want to consider
>> installing linux-
>> image-generic-lts-vivid soon since utopic will reach EOL this July and
>> its kernel package will no longer be updated.
>>
> So the LTS version doesn't keep the latest kernels?
> 

Well, not if the kernel version you are using is from a newer release 
that reaches it EOL like utopic will next month.

$ apt-cache show linux-image-generic-lts-utopic
Package: linux-image-generic-lts-utopic
Priority: optional
Section: kernel
Installed-Size: 27
Maintainer: Ubuntu Kernel Team <kernel-team at lists.ubuntu.com>
Architecture: i386
Source: linux-meta-lts-utopic
Version: 3.16.0.38.30
...
Supported: 9m  <--

Once utopic is EOL'd, then its kernel no longer receives updates. 
However, the hardware enablement stack (HWE) metapackage (linux-image-hwe-
generic-trusty) may transition from a dependency on utopic's kernel to 
vivid's automatically. I can't be certain about that since I don't 
usually install the HWE stack. Seems logical that it should, though.

-- 
sktsee