Basic Questions¶

Good to Know¶

Find a menu entry in menuconfig:
Open menuconfig and press / to search.
Flash an image via bootloader:
Use tools/push_firmware (or tools/push_firmware -h for help).
After a build, make push_firmware also works.
Flash from a Raspberry Pi:
Copy the image to the Pi, download the current push_firmware script, make it executable, then run it.
In-memory image format:
Usually not required anymore, because push_firmware can flash normal images directly.
Unpack an image:
Use tools/fwdu unpack your.image.
Use older modem/DSL driver files:
Extract from a source image, place files into an addon tree, and enable the addon.
Replace kernel:
Avoid this unless you clearly understand why you need it.
Build kernel modules:
Select device/firmware in menuconfig, then enable modules in kernel-menuconfig.
Execute files on external storage:
If needed, enable the patch that removes noexec for external storage.
Run custom commands at boot/shutdown:
Use scripts in /tmp/flash/mod as appropriate for your setup.
Edit read-only files/directories:
Use helper tools such as vix/vimx/nanox and araw.
Customize MOTD:
Place your script at /tmp/flash/mod/motd and regenerate via rc.mod if needed.
Legacy menu layout:
Run make menuconfig-single.