This guide will explain how to set up a [VirtualBox][] VM running [Ubuntu 20.04][] and, using the new [autoinstall][] tool and cloud-init, install OpenSSH server, add a group and a user, who can then connect to the machine via SSH. This was done on a 2016 MacBook Pro running macOS 10.15 "Catalina" and VirtualBox 6.1.6 (with the VirtualBox Guest Additions installed).
You will also need a group name, a username, a password hash and an SSH key pair.
| # For recent versions of Ubuntu: | |
| - https://www.pugetsystems.com/labs/hpc/ubuntu-22-04-server-autoinstall-iso/ | |
| # Docs: | |
| - https://wiki.ubuntu.com/FoundationsTeam/AutomatedServerInstalls | |
| - https://wiki.ubuntu.com/FoundationsTeam/AutomatedServerInstalls/ConfigReference | |
| - https://cloudinit.readthedocs.io/en/latest/topics/datasources/nocloud.html | |
| - https://discourse.ubuntu.com/t/please-test-autoinstalls-for-20-04/15250/53 | |
| # Download ISO Installer: |
| # ruamel.yaml adds !!omap when using ordered dicts | |
| # and there is no switch to avoid such behaviour | |
| # Here is a workarond to put all keys in specific order | |
| # and instead of following constuctions: | |
| # list: | |
| # - !!omap | |
| # - [key1, value1] | |
| # - [key2, value2] | |
| # create this one: | |
| # list: |
Here's my setup:
Complete up to the "Generate the cert" section in this gist
Use case: You have repository A with remote location rA, and repository B (which may or may not have remote location rB). You want to do one of two things:
NB: Check out git subtree/git submodule and this Stack Overflow question before going through the steps below. This gist is just a record of how I solved this problem on my own one day.
Before starting, make sure your local and remote repositories are up-to-date with all changes you need. The following steps use the general idea of changing the remote origin and renaming the local master branch of one of the repos in order to combine the two master branches.
