Thats correct.
Upgrading to Sylvia is a whole different process.
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Launch the System
Upgrade by clicking on “Edit->
Upgrade to Linux Mint 18.3
Sylvia”. Follow the instructions on the screen. If asked whether to keep or replace configuration files, choose to replace them. Once the
upgrade is finished, reboot your computer.Nov 27, 2017
To guard against dramas......
.Timeshift is your best friend.
Just have a read of this for now
Dont be put off by the apparent complexity....it is far simpler than it looks.
Seeing you are on a Netbook , you may have limited space....so it would be better to have an external hard drive connected via USB to hold the Timeshift snapshots. It is easily possible to limit the number of snapshots that Timeshift takes......it is very configurable.
(
https://github.com/teejee2008/timeshift)
(To install, open Terminal....copy and paste each line separately and hit enter after each line)
sudo add-apt-repository -y ppa:teejee2008/timeshift
sudo apt-get update
sudo apt-get install timeshift
Timeshift
Timeshift for Linux is an application that provides functionality similar to the
System Restore feature in Windows and the
Time Machine tool in Mac OS. Timeshift protects your system by taking incremental snapshots of the file system at regular intervals. These snapshots can be restored at a later date to undo all changes to the system.
In RSYNC mode, snapshots are taken using
rsync and
hard-links. Common files are shared between snapshots which saves disk space. Each snapshot is a full system backup that can be browsed with a file manager.
In BTRFS mode, snapshots are taken using the in-built features of the BTRFS filesystem. BTRFS snapshots are supported only on BTRFS systems having an Ubuntu-type subvolume layout (with @ and @home subvolumes).
Timeshift is similar to applications like
rsnapshot,
BackInTime and
TimeVault but with different goals. It is designed to protect only system files and settings. User files such as documents, pictures and music are excluded. This ensures that your files remains unchanged when you restore your system to an earlier date. If you need a tool to backup your documents and files please take a look at the excellent
BackInTime application which is more configurable and provides options for saving user files.