Discover, and to some extent control, hardware and other devices present on a Linux system.
- [Voiceover] Surveying the Linux Kernel.…Let's talk about discovering and controlling hardware.…Now, an application, like a program or a command,…we'll call Library functions, and some of those…Library functions, the system calls them the Kernel,…and the Kernel is responsible for…really interacting with the hardware.…Some commands for hardware info include lshw, list hardware,…or for getting information about PCI devices, lspci,…or USB devices, lsusb,…or block devices, lsbk.…
Or about your CPU, lscpu,…or about other devices, lsdev.…Now of course, your Linux distro, your particular…installation of Linux might now have all these commands,…you might need to install 'em.…And there's even a chance that the distro you're using…doesn't even have all these commands,…but, generally, these are available…and they're pretty handy.…I use lspci, for example, pretty frequently.…There's also commands for controlling or configuring…hardware, not just finding out information about hardware.…The hdparm command is for hard disks.…
We survey the Linux kernel specification, boot process, and loadable kernel modules. You will practice techniques such as downloading and searching Linux kernel source code and configuring a Linux kernel from scratch. Challenge and solution videos at the end of almost every chapter allow you to test your new Linux skills along the way.
- What is the Linux kernel?
- Controlling hardware
- Reading Linux kernel messages
- Reading and writing files from the proc and sysfs filesystems
- Configuring GRUB
- Using kernel command-line parameters
- Configuring run levels
- Working with loadable kernel modules (LKMs)
- Searching the kernel source code
- Building and installing a Linux kernel
Skill Level Advanced
1. Surveying the Linux Kernel
3. Working with Loadable Kernel Modules
4. Examining Linux Kernel Source Code
5. Configuring and Building a Linux Kernel
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