Tags: Lcbru Software Category Ubuntu Upgrade Summary

Overview

Upgrade Ubuntu 14.04 to Ubuntu 16.04 – Server Upgrade

To check the version of Ubuntu

lsb_release -a

Upgrade instructions

1. Make your server system up-to-date as follows:

sudo apt-get update && sudo apt-get dist-upgrade

Click on Y when necessary. When messages appear scroll down and press q for quit

2. Then reboot your system to finish installing updates.

sudo init 6

3. First, install the update-manager-core package using the command below that is if it is not yet installed on your server:

sudo apt-get install update-manager-core

4. After that, edit this file, /etc/update-manager/release-upgrades using your favorite editor and set Prompt=lts

sudo vi /etc/update-manager/release-upgrades

5. Next, start the upgrade process as follows:

sudo do-release-upgrade -d

Click on Y and Enter when necessary.

Finally you will get notification to restart VM.

6. At this point you have to login the VM using the VSphere Web Client

https://uhllmvc01:9443/vsphere-client/#extensionId=vsphere.core.viVms.domainView

7. Find the VM network inteface by running

ifconfig -a

It will be something like enp0s17 or ens32

8. modify network file

sudo vi /etc/network/interfaces

replace all instances of eth0 to to network interface found in previous step

9. reboot VM

sudo reboot

sudo /sbin/reboot -f