"kdumpbase" dracut module

"kdumpbase" dracut module

[Ronit Halder]

I want to know what is the job of "kdumpbase" dracut module.

"kdumpbase" dracut module

[Freeman Zhang]

-------- Original Message --------
> I want to know what is the job of "kdumpbase" dracut module.
> 
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
> 

dracut uses modules to include instructions and functions in initramfs. When the dump kernel(2nd kernel) is started, it needs to know what action it should take to dump the core. It also needs some infrastructure to support those actions. Dracut follows the kdumpbase script to build initramfs for the 2nd kernel.

Above is my own understanding, hope this will help.

Freeman

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: OpenPGP digital signature
Url : http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20160321/b70e998a/attachment.bin 

"kdumpbase" dracut module

[Dave Young]

On 03/19/16 at 12:59pm, Ronit Halder wrote:
> I want to know what is the job of "kdumpbase" dracut module.

Suppose you are using Fedora or RHEL, it is a out of tree module for creating
kdump initramfs. Fedora package kexec-tools will install it to dracut module
directory.

Thanks
Dave

"kdumpbase" dracut module

[Ronit Halder]

Thanks for helping

So, this module is used to dump the crash kernel.
Am I right?
If not then can you explain how kdump kernel calls the makedumpfile?

"kdumpbase" dracut module

[Freeman Zhang]

On 3/21/16 9:55 PM, Ronit Halder wrote:
> Thanks for helping
> 
> So, this module is used to dump the crash kernel.
> Am I right?
> If not then can you explain how kdump kernel calls the makedumpfile?
> 

You are absolutely right Ronit. By the time the second kernel is booted,
this module will start a service called kdump-capture, which will
execute kdump.sh, which will invoke makedumpfile after all, depending on
your kdump configuration.

All the best!
Freeman

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 842 bytes
Desc: OpenPGP digital signature
Url : http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20160322/aa58307e/attachment.bin