phoenix-rtos/phoenix-rtos-project

micropython: standard tests fail without busybox (`system()` doesn't work in psh)

Open

#1,732 opened on Aug 5, 2026

View on GitHub
 (2 comments) (0 reactions) (0 assignees)C (48 forks)auto 404
good first issuemicropython

Repository metrics

Stars
 (62 stars)
PR merge metrics
 (PR metrics pending)

Description

Standard tests fail without busybox. However, it is not due to their nature: it seems to only be due to system() being used in test_micropython.c:192. system() fails in psh as we don't link /bin/sh to /bin/psh. The solution could be for psh to link it, though we should check if that doesn't interact badly with busybox or other shell-providing ports.

Contributor guide

Research direction
Investigate how psh is built and how /bin/sh is currently linked. Understand why system() relies on /bin/sh and how other shells like busybox provide it. Explore the build configuration for shell ports.
Tech stack
cshell
Domain
embedded iotoperating systems
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitCShell
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75