Recently, I could not boot into my laptop because the laptop ran out of space. No attempt to resize sda was successful. Since the disk was encrypted, I could not even access my data files.

I had to wipe out my current installation of Ubuntu 18.10 and install Ubuntu 20.04

Here are the steps I had to take to get the laptop ready.

0. Create Ubuntu iso image CD and install Ubuntu 20.04 onto laptop.

1. Install Mullvad VPN client [3]

2. Customize Firefox browser

3. Install Mega.nz [4]

4. Install KeePassXC

5. a) Create SSH key, b) add SSH key to the SSH agent and then c) SSH Private key to ssh-agent to our default path

$ssh-keygen -t rsa -b 4096 -C "email"

$eval "$(ssh-agent -s)"

$ssh-add ~/.ssh/id_rsa

6. Now copy the SSH key to your respective servers using followiing command

$ssh-copy-id -i ~/.ssh/id_rsa.pub YOUR_USER_NAME@IP_ADDRESS_OF_THE_SERVER

More information to add SSH public key to server is provided here [5].

7. Install Ruby, Ruby on Rails, Git, PostgreSQL [6]

8. Upgrade Git to latest version [7]

9. Upgrade npm to latest version

$sudo npm install npm@latest [8] -g

10, Install Atom editor [9] and useful atom packages [10].

11. Use rbenv [11] to switch between ruby versions.

$rbenv install -l

$rbenv install <version>

12. Install Hey mail [12] (Instructions for installation on Pop!_OS [13] run from terminal as $hey-mail )