LinuxQuestions.org - [SOLVED] Any idea what file system(s) the kernel image is formatted in?

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Kenny_Strawn

09-13-2010 03:47 AM

Any idea what file system(s) the kernel image is formatted in?

Do any of you know what file system the kernel image is written in, and if the kernel image can be mounted? Please reply to this thread if you know.

jlliagre

09-13-2010 03:57 AM

Unless I'm missing what you are referring to, a kernel image is a monolithic executable binary, not a file system.

Kenny_Strawn

09-13-2010 04:19 AM

Okay, that's all I needed to know. I thought it was a disk image, hence the word "image" in the name. Is it an ELF binary, then?

jlliagre

09-13-2010 04:31 AM

If you are talking about the .img file like kernel26.img, it might be a gzip compressed cpio archive.

Kenny_Strawn

09-13-2010 04:39 AM

Quote:

Originally Posted by jlliagre (Post 4095884)

If you are talking about the .img file like kernel26.img, it might be a gzip compressed cpio archive.

You mean initrd.img? Yes, I know. I was talking about /boot/vmlinuz. That is an ELF binary, right?

syg00

09-13-2010 04:43 AM

Nope. Try readelf on it ...

Kenny_Strawn

09-13-2010 04:59 AM

Then what kind of binary is it?

jlliagre

09-13-2010 05:19 AM

This is what I got on an arch kernel:

Code:

# file vmlinuz26 

vmlinuz26: Linux kernel x86 boot executable bzImage, version 2.6.33-ARCH (thomas@evey) #1 SM, RO-rootFS, swap_dev 0x1, Normal VGA

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