Expandig Kobo Clara HD's microSD Card

The COVID-19 lockdown in Belgium was officially enforced on noon 18th Mar 2020 but at home we were already quarantined (kids since Carnival holidays, 24th Feb; me from EOB 13th Mar). So on my first official telework day, 16th Mar, I finally decided to buy an ebook reader, and selected Kobo Clara HD.

I like it but still I was curious and looked around for how to hack it. I found that it is possible to change the original SD card (8 GB) with a bigger one and decided to give it a go. This blog post from Lee Yingtong Li got me started.

I opened it, took the SD card out and copied on a bigger one of 128 GB.

It all went well apart from the last 2 lines of text:

Then use a tool like gparted to resize the data partition (the large third partition) on the new microSD card to fill the remaining space.

I tried all kind of things to have gparted running from a Mac (docker image, Virtual Box) but what finally worked for me was to have it on a bootable CD ROM (yes I still have an old machine with CD reader/writer): I burned the ISO image, booted from it and resized the SD card to all available space.

Enrico Spinielli
Enrico Spinielli
Data Manager

My interests include computer programming (R, Python, D3.js, Processing, Smalltalk), data analysis, map projections and calendrical calculations.