How to configure embedded linux kernel so that the file system is visible on the host linux

I am using a powerpc, and after building and flashing the linux kernel on the device I can see the file system. But if I try to create a user or make any changes they get erased and resets to default...
Funny PABT behaviour - why?

I came across a weird behaviour when trying out my program on Raspberry Pi 2b (Cortex-A7): When I try my PABT-handler using BKPT, the handler is entered fine, but on return the program restarts. The restarted...
How to access the memory mapped debug registers?

Now that the funny PABT-behaviour is found to be (probably) caused ny debug state, I'd like to exit debug state before return from PABT exception. The ARM v7-A/R ARM says that I should write RRQ to DBGDRCR...
UML4IoT for Raspberry Pi based lab exercises

We are developing a set of Lab exercises on IoT based on Raspberry Pi for students. In this context and in order to give to students a basic infrastructure to work on various IoT apps without the need...
Small off-the-shelf small ARM module (15mmx25mm or less)?

We are looking for off-the-shelf small ARM module (15mmx25mm or less) with the following specs: - single core >= 100MHz is OK >= 256k RAM >= 256kb ROM >= 2mbit flash - battery charging circuit - uart...