Hi: Team
I try to copy a external compiled firmware (.bin) to the PATH /lib/firmware , while system denied the action and show : Read-only file system . so, how to solve this . in addition, is this the wrong approach? should I must bind the kernel-firmware to the image directly . and how to do it . Thanks!
B/R
Jim
Hi Jim,
Can you give us more details on what it is you’re trying to do?
Thanks.
Hi,
You need to use Yocto in order to rebuild the rootfs image with a custom recipe which will install your bin file in the /lib/firmware folder.
Then flash this new rootfs image in the module using fastboot.
Also, some well-known firmware binaries (e.g. for WiFi chipsets) can be easy added to the rootfs images (in /lib/firmware) by adding the following line into the image recipe (e.g. meta-swi/meta-swi-mdm9x15/recipes-core/images/mdm9x15-image.inc):
IMAGE_INSTALL += “linux-firmware-XXXXX”
Where “XXXXX” is the name of your firmware package.
Example:
IMAGE_INSTALL += “linux-firmware-ath6k”
this will add all the firmware binary files for the Atheros WiFi chipsets (AR6XXX series) in the /lib/firmware.
List of firmware packages supported by the kernel is available in this yocto folder:
kernel/firmware/WHENCE
Jay
Hi:
thanks ! I have added the bin file according to your advice.
also , with command mount -o remount,rw / fixed the read-only file system issue.
B/R