> For the complete documentation index, see [llms.txt](https://prasad-udawant.gitbook.io/linux-kernel-development/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prasad-udawant.gitbook.io/linux-kernel-development/miscellaneous/faqs.md).

# FAQs

## Linux Kernel Module

1. "build" directory not present for linux kernel version in lib/modules/\<kernel-name>, which is required to build linux kernel module.\
   ANS :- execute command if build directory is not present for currently executing kernel

   ```bash
   sudo apt install linux-headers-<kernel version no>
   #e.g., sudo apt install linux-headers-4.15.0-202-generic
   ```


---

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