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Do I lose LTS support if I upgrade to a non-LTS release?

I have been using Ubuntu since 8.04 as my primary OS and every six months I upgrade to the latest distribuition release. I am currently using 12.04 LTS.

Thinking ahead, if I upgrade to 12.10 or any other future release, do I lose the Long-Term support (LTS)?

This may be a stupid question as I found part of my answer in this link .

Is my Ubuntu LTS EOL?

Lately whenever I run software update I get the message

suggesting that my version of Ubuntu is EOL. But when I run lsb_release -a I get

No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.5 LTS
Release:    14.04
Codename:   trusty

Which of these numbers should I pay attention to? 14.04 or 14.04.5? Because according to the release wiki support for 14.04.5 runs out on April 2019.

Do I need to take action on a 10.04 LTS server to avoid the heartbleed vulnerability?

From the heartbleed.com website, I see that OpenSSL 0.9.8 is NOT vulnerable, which is the version that is available on 10.04. That should mean that actually having stuck with 10.04 until now has avoided any problems with this issue for my production servers.

Is that correct or am I still missing something and there is action that should be taken on 10.04 servers?

How can I upgrade the Ubuntu LTS kernel to newer?

I just installed Ubuntu 12.04.2 64-bit on my desktop PC and I see the kernel in System Monitor is 3.5.0-23 but in Ubuntu 12.04.2 in my laptop the kernel is 3.2.0-38.

I have already tried to run the command sudo apt-get upgrade && sudo apt-get dist-upgrade on my laptop but it doesn't update the kernel.

How can I upgrade kernel for my laptop?

How to only perform LTS upgrades?

I know I've seen this documented somewhere before, but what's the option to keep update-manager from prompting for updates except for LTS-to-LTS releases?

Is it possible to skip an LTS upgrade?

If you want to upgrade from 10.10 to 12.04, then you'll need to follow the upgrade path; 10.10 > 11.04 > 11.10 > 12.04. However, with LTS versions, you can upgrade directly, so that you can upgrade from 10.04LTS to 12.04LTS directly.

But now, LTS versions are supported for five years while there's still a new LTS every two years. That means you can choose to skip an LTS. So the question is; will I be able to upgrade from 12.04LTS to 16.04LTS directly, or will I then have to follow the LTS upgrade path; 12.04 > 14.04 > 16.04?

What's the difference between a Long Term Support Release and a Normal Release?

What are the differences between an Ubuntu Long Term Support release (LTS) and a normal release?

Can I smoothly upgrade from one LTS to next LTS release?

Question is about Ubuntu release process. Are migrations from n to n+1 releases expected?

Assuming we have server with installed Ubuntu 14.04 LTS. Will it be smoothly upgradable to Ubuntu 16.04 LTS via apt-get upgrade ?

Debian Stable vs Ubuntu LTS for Server?

Which is a better platform for a professional use server?

Debian Stable or Ubuntu LTS?

The third party software we plan to use, works on both. Which one is better on it own merits?

Take into account things like the kernel (Ubuntu for example has its own custom kernel for servers), and other Ubuntu specific customizations.

I keep switching back and forth, and I need to decide so I can recommend one or the other to a client. Right now, I think I am going to choose Debian Stable.

Recently, I have had Ubuntu Server Edition 10.04.1 have a few strange issues...

I have Ubuntu setup to do automatic updates via a simple script, and every few months or so, libapache2-mod-php5 gets removed because of conflicting packages... Thereby causing me to loose the php function of the web server.

Debian Stable has not done anything like this.

How do you see what packages are available for update

FreeBSD user joining your ranks. I've been asked to look after an Ubuntu Server running 10.04 LTS.

I see from /usr/lib/update-notifier/update-motd-updates-available that there are a number of updates on the server however I do not see a way to tell which will be updated.

Would anyone be able to point me in the right direction so as I can see which packages will get updated when I run apt-get upgrade?

UPDATE:

Can't answer my own question at the moment so throwing this in here for the time being:

Along with the apt-get upgrade --dry-run suggested below, /usr/lib/update-notifier/apt-check -p will list all packages that have updates available.

How do I upgrade from 14.04 LTS to 16.04.1 LTS?

So, today is July 21st and this page. gives me an option to download 16.04.1 LTS. However, attempting to upgrade gets me this message -

$ sudo do-release-upgrade
Checking for a new Ubuntu release
No new release found

What is wrong? Does it matter that I am running apt-get update behind apt-cacher-ng?

Note: Commenting out the files in apt.conf.d that used apt-cacher-ng did not make a difference.

Edit: Explanation for possible duplicates: Why is "No new release found" when upgrading from a LTS to the next? deals with upgrade from 12.04LTS to 14.04LTS. My question is specific to 14.04 LTS to 16.04.1 LTS upgrade. Old answers, while good for archival purposes are less relevant in a fast changing package like ubuntu. Moreover none of the answers answer what is wrong. The link andrew.46 pointed out is mentioned in one of the comments. This Q & A is more helpful for people upgrading today than the work around mentioned in "Why is "No new release found" when upgrading from a LTS to the next?".

Quantal backported kernel in 12.04.2? What's going on there?

I'm sure that I'm not the first and/or only one to notice that 12.04.2, released earlier this year, installs by default a backported 3.5 kernel from the Quantal (12.10) release.

I'm surprised to see this in an LTS version, so I was wondering what's the reason for this?

It's the first time I noticed it on an LTS release.

Also: is there a method to upgrade to that or will I have to select manually that package (linux-image-generic-lts-quantal)?

Comparing two fully updated systems

Originally installed with 12.04.1 installation CD

$ lsb_release -d && dpkg -l|grep linux-image|grep ^ii
Description:    Ubuntu 12.04.2 LTS
ii  linux-image-3.2.0-39-generic         3.2.0-39.62                             Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  linux-image-3.2.0-40-generic         3.2.0-40.64                             Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  linux-image-generic                  3.2.0.40.48                             Generic Linux kernel image

Originally installed with 12.04.2 installation CD

$ lsb_release -d && dpkg -l|grep linux-image|grep ^ii
Description:    Ubuntu 12.04.2 LTS
ii  linux-image-3.5.0-23-generic      3.5.0-23.35~precise1         Linux kernel image for version 3.5.0 on 64 bit x86 SMP
ii  linux-image-3.5.0-27-generic      3.5.0-27.46~precise1         Linux kernel image for version 3.5.0 on 64 bit x86 SMP
ii  linux-image-generic-lts-quantal   3.5.0.27.34                  Generic Linux kernel image

$ apt-cache show linux-image-generic-lts-quantal
Package: linux-image-generic-lts-quantal
Priority: optional
Section: metapackages
Installed-Size: 27
Maintainer: Ubuntu Kernel Team <kernel-team@lists.ubuntu.com>
Architecture: amd64
Source: linux-meta-lts-quantal
Version: 3.5.0.27.34
Depends: linux-image-3.5.0-27-generic, linux-firmware
Filename: pool/main/l/linux-meta-lts-quantal/linux-image-generic-lts-quantal_3.5.0.27.34_amd64.deb
Size: 2520
MD5sum: c9ad82fa12aacbd14324283cb9344ea9
SHA1: a2f9a758f605c116865b7c7fa6971bf77364bf62
SHA256: 08133998d027b5af18e2e3374e0723b4cf22baab28850cc89ca327a34b3094df
Description-en: Generic Linux kernel image
 This package will always depend on the latest generic 12.10 kernel image
 available.
Description-md5: c7e4fbc023632f2e538ff93b600ef34c
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu
Supported: 18m

Should I update to an LTS release?

This is probably still too early to worry about, but I'm just curious.

I am not currently using an LTS Ubuntu on my laptop.

Now, when the next LTS comes out, should I upgrade? Or should I skip this version and wait till the next non-LTS version is released? I should note that I am one of those people that likes to keep having new stuff, thus I don't want to stay with an LTS version and wait 2 years till the next LTS is released.

In Summary: If I upgrade to an LTS, will it be possible/easy to update to the following non-LTS or will a re-installation of the OS be required?

Ubuntu 12.04.4 LTS to 14.04.1 LTS upgrade: "no new release found"

According to Trusty Tahr Release Schedule, Ubuntu LTS 14.04.1 (first .1 version) was released two days ago. Unfortunately when trying to upgrade using the do-release-upgrade command I get the message No new release found.

Command line output:

root@foobar:~# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.4 LTS"
root@foobar:~# do-release-upgrade 
Checking for a new Ubuntu release
No new release found

The threads upgrading LTS to LTS and no new release found make totally sense, but as I understand the first dot 1 version of Ubuntu 14.04 (14.04.1) has yet been released, so why can't I still upgrade LTS to LTS?

Is there a way to upgrade properly, not using the -d option with the do-release-upgrade command?

difference between rsyslogd and syslogd

I was trying to implement some changes to syslogd on Ubuntu 10.04.02 LTS (Server edition). I found /etc/syslog.conf is not present on system, instead I have /etc/rsyslogd.d/*.conf. syslogd can be installed by installing inetutils-syslogd, but I am unable to decide the pros and cons of both systems. Also while installing inetutils-syslogd, I need to remove rsyslog and ubuntu-minimal. Would some one explain merits and de-merits of rsyslogd over syslogd.