Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Mastering Embedded Linux Programming

You're reading from   Mastering Embedded Linux Programming Unleash the full potential of Embedded Linux with Linux 4.9 and Yocto Project 2.2 (Morty) Updates

Arrow left icon
Product type Paperback
Published in Jun 2017
Publisher Packt
ISBN-13 9781787283282
Length 478 pages
Edition 2nd Edition
Tools
Arrow right icon
Author (1):
Arrow left icon
Mr. Chris Simmonds Mr. Chris Simmonds
Author Profile Icon Mr. Chris Simmonds
Mr. Chris Simmonds
Arrow right icon
View More author details
Toc

Table of Contents (17) Chapters Close

Preface 1. Starting Out FREE CHAPTER 2. Learning About Toolchains 3. All About Bootloaders 4. Configuring and Building the Kernel 5. Building a Root Filesystem 6. Selecting a Build System 7. Creating a Storage Strategy 8. Updating Software in the Field 9. Interfacing with Device Drivers 10. Starting Up – The init Program 11. Managing Power 12. Learning About Processes and Threads 13. Managing Memory 14. Debugging with GDB 15. Profiling and Tracing 16. Real-Time Programming

Filesystem choices

So far we have looked at the technology behind solid-state memory and at the many types of filesystems. Now it is time to summarize the options. In most cases, you will be able to divide your storage requirements into these three categories:

  • Permanent, read-write data: Runtime configuration, network parameters, passwords, data logs, and user data
  • Permanent, read-only data: Programs, libraries, and configurations files that are constant, for example, the root filesystem
  • Volatile data: Temporary storage, for example, /tmp

The choices for read-write storage are as follows:

  • NOR: UBIFS or JFFS2
  • NAND: UBIFS, JFFS2, or YAFFS2
  • eMMC: ext4 or F2FS

For read-only storage, you can use any of these, mounted with the ro attribute. Additionally, if you want to save space, you could use squashfs. Finally, for volatile storage, there is only one choice, tmpfs.

...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime