Following success with Rocketboards WS1 tutorial enabling me to write a C program running under linux in two way communication with an FPGA program I was excited by the prospect of WS2.
WS2 describes how to build a preloader (as before) build u-boot and build a kernel. I was able to build the preloader and build u-boot but kernel build dates from about 2015 and not all the sources are still available. The installation is very technical and I wasn't able to adapt it for myself.
Digikey
Robert Nelson, a modern day hero at Digikey has published, and kept upto date, a sequence of instructions to build u-boot and linux then create a bootable SDcard. The instructions explain how to:
- Install the Linaro ARM cross compiler
- Obtain and compile u-boot
- obtain and build kernel
- Obtain Debian 10.3 root filesystem
- SD card creation.
I created a Debian 10.3 linux system on a USB hard drive so I could do the build without affecting my Windows PC configuration and the tutorial worked like a dream. The new SD card boots up on the Atlas system complete with ethernet interface, ssh and nginx. It used 550MB of the 2GB microSD card I supplied so there is plenty of space.
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