The PX4 SD Card is used for storing configuration files, flight logs, mission information etc.
:::tip The SD card should be FAT32 formatted for use with PX4 (this is the default for SD cards). We recommend that you reformat cards that are using a different file system. :::
The directory structure/layout is shown below.
| Directory/File(s) | Description |
|---|---|
/etc/ |
Extra config (+ mixers). See System Startup > Replacing the System Startup. |
/etc/mixers/ |
Mixers |
/log/ |
Full flight logs |
/mission_log/ |
Reduced flight logs |
/fw/ |
UAVCAN firmware |
/uavcan.db/ |
UAVCAN DB + logs |
/params |
Parameters (if not in FRAM/FLASH) |
/dataman |
Mission storage file |
/fault_<datetime>.txt |
Hardfault files |
/bootlog.txt |
Boot log file |