使用BeagleBone Black+Bonscript时出现“Kernel does not include CapeMgr module”错误求助

Hey there, let’s work through this frustrating error you’re hitting when using Bonscript with your BeagleBone Black. I’ve run into this exact issue a handful of times, so here’s a step-by-step breakdown of what to check and how to fix it:

1. Verify if the CapeMgr Module is Loaded or Even Exists #

First, let’s confirm whether the bone_capemgr module is present on your system:

• Run this command to check if it’s already loaded:

  lsmod | grep bone_capemgr
  

  If you get no output, the module isn’t loaded.
• Try loading it manually with:

  sudo modprobe bone_capemgr
  

  If you get an error like modprobe: FATAL: Module bone_capemgr not found in directory /lib/modules/$(uname -r), that confirms your kernel was compiled without this module.

2. Check Your Kernel Configuration #

Many newer BeagleBone Black kernels (especially post-Debian 10) disable bone_capemgr by default in favor of newer Device Tree Overlay tools—but Bonscript often relies on the old CapeMgr system. Here’s how to check:

• View your current kernel config with:

  zcat /proc/config.gz | grep CONFIG_BONE_CAPEMGR
  

  If the output shows # CONFIG_BONE_CAPEMGR is not set, the module was excluded from the kernel build.

If You Compiled Your Own Kernel: #

• Re-run your kernel configuration tool (like menuconfig or nconfig), navigate to Device Drivers > Staging drivers > Support for the BeagleBone Black Capes, and set CONFIG_BONE_CAPEMGR to m (module) or y (built-in).
• Recompile your kernel and modules, then install them on your BBB.

If You’re Using an Official Image: #

• Consider switching to an older official image (like Debian 9 Stretch) that still includes bone_capemgr by default. These images are widely tested with tools like Bonscript.
• Alternatively, edit your /boot/uEnv.txt file to enable CapeMgr at boot. Add or uncomment this line (depending on your kernel version):

  capemgr.enabled=1
  

  Save the file, reboot, and try loading the module again.

3. Check Bonscript Compatibility #

Make sure your Bonscript version is compatible with your BBB’s kernel:

• Older versions of Bonscript hardcode paths to /sys/devices/platform/bone_capemgr—if this directory doesn’t exist (because CapeMgr is missing), it’ll throw the error you’re seeing.
• If possible, update Bonscript to the latest version (if it’s been updated to support newer Device Tree methods) or roll back to a version that explicitly supports CapeMgr.

Quick Troubleshooting Note #

Always back up your important data before modifying kernel settings or switching images—kernel changes can sometimes lead to boot issues if done incorrectly.

内容的提问来源于stack exchange，提问作者user3400975