I have multiple servers running Ubuntu-14.04.2_LTS, just occurred to me that some are running the 3.13 kernel while others runs 3.16; all are maintained identically, so what would explain this?
1 Answer
Thanks to the link provided by @xangua, stumble upon this :
Trusty
The 14.04.2 and newer point release will ship with an updated kernel and X stack by default. If you have installed with older media you can use > the following to install the newer kernel from 14.10 (Utopic):
DESKTOP...
SERVER
sudo apt-get install --install-recommends linux-generic-lts-utopic
Also, as @mchid pointed out, servers running 3.16 had the package installed :
nul@nebula:~$ dpkg -l |grep linux-image
ii linux-image-3.16.0-30-generic 3.16.0-30.40~14.04.1 amd64 Linux kernel image for version 3.16.0 on 64 bit x86 SMP
ii linux-image-3.16.0-36-generic 3.16.0-36.48~14.04.1 amd64 Linux kernel image for version 3.16.0 on 64 bit x86 SMP
ii linux-image-extra-3.16.0-30-generic 3.16.0-30.40~14.04.1 amd64 Linux kernel extra modules for version 3.16.0 on 64 bit x86 SMP
ii linux-image-extra-3.16.0-36-generic 3.16.0-36.48~14.04.1 amd64 Linux kernel extra modules for version 3.16.0 on 64 bit x86 SMP
ii linux-image-generic-lts-utopic 3.16.0.36.28 amd64 Generic Linux kernel image
Tried it on a BETA server (14.04.2_LTS running 3.13) and it worked like a charm; as stated, some servers must have been installed with a recent ISO, others must have been dist-upgraded from earlier versions.
dpkg -l | grep linux-image
on each machine and see if there are any difference there. It looks like you may have the "utopic" lts kernel (3.16) installed on some machines and not on others.uname -a
dpkg -l | grep linux-generic