Differences between vmlinux and zImage

  • More details can be found here.

vmlinuz v.s zImage

“When you want to debug the kernel you need a little understanding of how the kernel is composed. Most important is the difference between your vmlinux and the zImage. What you need to understand at this point is that the zImage is a container. This container gets loaded by a boot loader and that execution is handed over to the zImage. This zImage unpacks the kernel to the same memory location and starts executing the kernel. (explain that vmlinux does not have to be the real kernel as it is possible to debug a “stripped” kernel using a non stripped vmlinux). overall if we look at a compiled kernel we will see that vmlinux is located at the root of the kernel tree whiles the zImage is located under arch/arm/boot

`-- zImage

vmlinux is what we will be using during debugging of the Linux kernel.”


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s