Compiling makedumpfile from source

manty kuma mantykuma at
Sun Jun 27 23:31:25 PDT 2021

Hi Kazuhito san,

I am getting the following error when trying to use makedumpfile utility.

> copy_vmcoreinfo: Can't open the vmcoreinfo file(/tmp/vmcoreinfoLUQc25). No such file or directory.
> makedumpfile Failed

In your setup how are you providing the vmcoreinfo file? In my case it
is checking /tmp/vmcoreinfoLUQc25
Who generates this file?
Thank you very much.

On Fri, Jun 11, 2021 at 6:07 PM HAGIO KAZUHITO(萩尾 一仁)
<k-hagio-ab at> wrote:
> -----Original Message-----
> > When i try to makedumpfile without vmcorefile, it complains that
> > "/tmp/vmcoreinfo no such file or directory" and fails to collect the dump.
> >
> > From the README it appears to me that makedumpfile can get vmcoreinfo
> > from /proc/vmcore
> > Is there any special CONFIG needed to support this?
> hmm, at least CONFIG_CRASH_CORE=y would be needed.
> Kazu

More information about the kexec mailing list