velxio/backend
davidmonterocrespo24 4b13662657 fix(pi3): velxio-init v2 — wait for /dev/ttyAMA1, exec on /dev/console
The previous velxio-init was racing devtmpfs population: its bash
redirect '</dev/ttyAMA1 >/dev/ttyAMA1' fired before the kernel had
enumerated the PL011 driver and populated the device node, so PID 1's
fd 0/1/2 redirect failed and the `while true` loop spun on
"No such file or directory" forever.

Two fixes baked into the SD image:

1. Wait up to 12 s for /dev/ttyAMA1 to appear (200 ms poll × 60).
   On real bare-metal Pi the node is there at init time, but
   under QEMU emulation the PL011 probe races.

2. Exec the shell with </dev/console >/dev/console — /dev/console is
   set up by the kernel (no race) and points at the last `console=`
   arg from the cmdline, which is ttyAMA1. Also wrap in `setsid -c`
   so bash gets a controlling terminal and behaves interactively.

Verified end-to-end with a live QEMU boot against the patched .img:
shell prompt `root@raspberrypi:/#` appears within ~50 s wall (most
of that is the kernel waiting on the second SD slot mmc1 timeout
twice = 20 s).
2026-05-16 08:39:37 +02:00
..
app fix(pi3): velxio-init v2 — wait for /dev/ttyAMA1, exec on /dev/console 2026-05-16 08:39:37 +02:00
scripts feat: persist multi-board projects + add auto-save 2026-05-01 13:43:33 -03:00
sdk Add ESP32 chip demos and comprehensive tests for I2C, SPI, and UART interactions 2026-04-28 19:24:39 -03:00
tests
.env.example chore(oss): drop dead auth/DB dependencies from OSS image 2026-05-14 17:06:27 -03:00
Dockerfile Add comprehensive tests for Cyw43Emulator functionality and lifecycle 2026-04-29 00:21:26 -03:00
debug_qemu.py
mcp_server.py
mcp_sse_server.py
requirements.txt feat(sim): boot_images module + Pi 3 emulation restored 2026-05-16 05:41:46 +02:00