* "kdumpbase" dracut module @ 2016-03-19 7:29 Ronit Halder 2016-03-21 2:59 ` Freeman Zhang 2016-03-21 6:26 ` Dave Young 0 siblings, 2 replies; 5+ messages in thread From: Ronit Halder @ 2016-03-19 7:29 UTC (permalink / raw) To: kernelnewbies I want to know what is the job of "kdumpbase" dracut module. ^ permalink raw reply [flat|nested] 5+ messages in thread
* "kdumpbase" dracut module 2016-03-19 7:29 "kdumpbase" dracut module Ronit Halder @ 2016-03-21 2:59 ` Freeman Zhang 2016-03-21 6:26 ` Dave Young 1 sibling, 0 replies; 5+ messages in thread From: Freeman Zhang @ 2016-03-21 2:59 UTC (permalink / raw) To: kernelnewbies -------- 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
* "kdumpbase" dracut module 2016-03-19 7:29 "kdumpbase" dracut module Ronit Halder 2016-03-21 2:59 ` Freeman Zhang @ 2016-03-21 6:26 ` Dave Young 2016-03-21 13:55 ` Ronit Halder 1 sibling, 1 reply; 5+ messages in thread From: Dave Young @ 2016-03-21 6:26 UTC (permalink / raw) To: kernelnewbies 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
* "kdumpbase" dracut module 2016-03-21 6:26 ` Dave Young @ 2016-03-21 13:55 ` Ronit Halder 2016-03-22 0:41 ` Freeman Zhang 0 siblings, 1 reply; 5+ messages in thread From: Ronit Halder @ 2016-03-21 13:55 UTC (permalink / raw) To: kernelnewbies 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? ^ permalink raw reply [flat|nested] 5+ messages in thread
* "kdumpbase" dracut module 2016-03-21 13:55 ` Ronit Halder @ 2016-03-22 0:41 ` Freeman Zhang 0 siblings, 0 replies; 5+ messages in thread From: Freeman Zhang @ 2016-03-22 0:41 UTC (permalink / raw) To: kernelnewbies 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2016-03-22 0:41 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2016-03-19 7:29 "kdumpbase" dracut module Ronit Halder 2016-03-21 2:59 ` Freeman Zhang 2016-03-21 6:26 ` Dave Young 2016-03-21 13:55 ` Ronit Halder 2016-03-22 0:41 ` Freeman Zhang
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