Take a look at how the author solved the hands-on challenge in the previous video.
- [Voiceover] Hey, let's take a look…at how I solve these challenges.…So, what kernel version are you running?…All right, let's look at our kernel version.…So we have a handy command for that, "uname,"…and if we say "-r," we get just the kernel version.…So "uname," by the way, stands for "Unix name."…Linux is Unix.…Let's look at how big the size of our kernel file is.…Because we know it's in /boot,…we can look there.…We know that kernel files start with "vmlinuz,"…so we'll look at all of those.…
And we see a few,…but we know from our uname command…that we're running 3.10.0-229.…And the size of that file is just over five meg.…So, how can we figure out how much RAM…is available for our kernel?…To find out about memory use,…we can look at a proc file, MemInfo.…If we look at the beginning of the file,…the head of it,…we see it reports MemTotal.…So this particular box has, like, 16 gig.…Incidentally, this is the memory available…when you boot Linux,…you could tell it how much memory to use,…and that can be less than the amount…
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
Learning Linux for PHP Developers (2014)with Jon Peck3h 52m Beginner
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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