Skip to main content

Posts

Showing posts from April, 2020

Completing a Coursera Specialization for Free

Coursera provides continuing education just like Udacity and offer the full learning experience that I am accustomed to, including lesson videos, reading materials, projects, discussion forums, and graded projects which are peer-reviewed. I recently completed the Full-stack Web Development in React specialization from Coursera, all for free. It’s called a specialization because it is made up of three courses below each with their own certifications and which takes 4-6 weeks each to complete: 1. Front-End Web UI Frameworks and Tools: Bootstrap 4 2. Front-End Web Development with React 3. Server-side Development with NodeJS, Express and MongoDB I started the program in December 2021 and finished it in June 2023 however. The intent of this post is to explain how I was able to fund the entire specialization for free. In December 2021, I read on social media that Coursera allowed for one free course per year if you were a student and had an email address from a partner school. I gave my stu

MacBook Pro boots up showing a folder with a flashing question mark

This dreaded flashing question mark inside a folder means that the startup disk is no longer able to find a Mac operating system to boot from. There are a few things you can try to do to fix this yourself. Reboot MacBook pro and then hold the Command (⌘) and R keys on your keyboard to startup from the macOS Recovery. I did this and was able to go through disk diagnostics telling me that there were some disk errors. I proceeded to fix what I could but found that on subsequent reboots to macOS Recovery showed different partition errors. Sometimes the disk utility completed successfully but other times it would stop repairing even if left overnight. If you did have a failing disk drive, the marked errors would be consistent and multiple passes will bypass these marked errors. I had erratic results however which led me to believe it may or may not be a bad disk. The next investigation should be to look at the disk drive connections to the SATA controller. Open the MacBook pro