kdump operates by booting a fresh kernel to capture the context of a crashed kernel, and so the only way for kdump to dump a kernel is to crash it and cause kdump to invoke its post-crash kernel. You can manually force a running kernel to panic (and invoke a correctly-configured kdump) with the following command sequence: > echo 1 > /proc/sys/kernel/sysrq > echo c > /proc/sysrq-trigger Cheers, Ben On 3/25/19 7:19 PM, wuzhouhui wrote: > Hi, > > Is there a way to specify kernel version when (re)start kdump > service? Suppose I have install a new kernel and kdump will > generate kdump.img for new kernel in next boot. But I want kdump > to generate kdump.img for new kernel immediately, is it possible? > > Thanks. > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos > -- Benjamin Hauger SysAdmin/CSDC-DMO Rm. 94 x8371