kexec -p and initrd

kexec -p and initrd

[Chris Friesen]

Hi,

I'm trying to figure something out but the man pages seem a bit 
ambiguous.  If I specify the "--initrd" option when loading a kernel for 
use on panic, does the initrd get copied into kernel memory at that 
point or does it get loaded from the specified path after the panic when 
the new kernel is booting?

I'll take a look at the code, but I thought it'd be quicker if someone 
already knew the answer.

Thanks,
Chris


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Re: kexec -p and initrd

[Vivek Goyal]

On Wed, Jul 10, 2013 at 12:49:48PM -0600, Chris Friesen wrote:
> Hi,
> 
> I'm trying to figure something out but the man pages seem a bit
> ambiguous.  If I specify the "--initrd" option when loading a kernel
> for use on panic, does the initrd get copied into kernel memory at
> that point or does it get loaded from the specified path after the
> panic when the new kernel is booting?

Yes, it gets loaded in kernel memory once kexec -p returns successfuly.

For more internals, have a look at.

http://lse.sourceforge.net/kdump/documentation/ols2oo5-kdump-paper.pdf

Vivek

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