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25 lines
765 B
25 lines
765 B
Kdump now works on live images with some manual configurations. Here is the step |
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by step guide. |
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1. Enable crashkernel reservation |
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Since there isn't any config file that can be used to configure kernel |
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parameters for live images before booting them, we have to append 'crashkernel' |
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argument in boot menu every time we boot a live image. |
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2. Change dump target in /etc/kdump.conf |
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When kdump kernel boots in a live environment, the default target /var/crash is |
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in RAM so you need to change the dump target to an external disk or a network |
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dump target. |
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Besides, make sure that "default dump_to_rootfs" is not specified. |
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3. Start kdump service |
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$ kdumpctl start |
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4. Trigger a kdump test |
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$ echo 1 > /proc/sys/kernel/sysrq |
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$ echo c > /proc/sysrq-trigger
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