Ubuntu

Kdump on ubuntu

Asked by Ramesh T

Does Ubuntu has kdump, if it does not, please tell me about how ubuntu dumps core to remote location (SCP/NFS)?

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Tomasz 'Zen' Napierala (tzn) said : 		#1

Kdump is included in kexec-tools (you can always find particular binary using apt-file)
To put dumps outside default folder, mount your remote location somwhere and edit:
/etc/kdump.conf

Put :
path /your_remote_mountpoint

Regards,

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Tom Ellis (tellis) said : 		#2

https://wiki.ubuntu.com/KernelTeam/CrashdumpRecipe

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Tom Ellis (tellis) said : 		#3

You'll need to modify /etc/kdump.conf to point to a remote location on your NFS server.

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Przemek F (pf92) said : 		#4

I have ubuntu 10.04 and /etc/kdump.conf does not exist. I had a look at /usr/share/initramfs-tools/scripts/init-bottom/0_kdump and it is clear that the core is always written to the root filesystem.

CRASHFILE="$rootmnt/var/crash/vmcore"

then

$MAKEDUMPFILE -E -d 31 -i $INFO $VMCORE $CRASHFILE

Correct me if i'm wrong but it seems that to write the core to some other place you need to edit this script particularly this makedumpfile invocation.

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James Downs (jdowns) said : 		#5

I'm seeing the same thing on Maverick. There's this related bug regarding /boot (https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/828731), which would apply for a separate /var partition.

The crashdump recipe is old, and doesn't talk about how to stream a coredump to a remote location.

What's the state of the art right now?

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