topic Re: Linux Reboot Log in i.MX Processors

Linux Reboot Log

DanielDuJijun — Mon, 05 Jun 2023 02:56:23 GMT

Dear NXP IMX8 Support Team.

How can I get the last boot log and analyses the exception when a Linux system reboots due to an exception?

Re: Linux Reboot Log

Harvey021 — Mon, 05 Jun 2023 09:18:31 GMT

Hi @DanielDuJijun

All boot logs should be saved at /var/log, or you can try tools: dmesg, journalctl.

Best regards

Harvey

Re: Linux Reboot Log

DanielDuJijun — Wed, 07 Jun 2023 12:03:06 GMT

Dear Harvey;

thanks a lot for your support.

But we cannot find the boot log file via the /var/log.

would you please kindly help to share more information?

thanks.

dmesg
dmesg: [ 107.403010] type=1400 audit(1545213827.792:3613): avc: denied { dac_read_search } for pid=3935 comm="main" capability=2 scontext=u:r:zygote:s0 tcontext=u:r:zygote:s0 tclass=capability permissive=0
klogctl: Permission denied
[ 107.421064] type=1400 audit(1545213914.432:3645): avc: denied { syslog_read } for pid=4096 comm="dmesg" scontext=u:r:shell:s0 tcontext=u:r:kernel:s0 tclass=system permissive=0

Re: Linux Reboot Log

Harvey021 — Thu, 08 Jun 2023 10:12:19 GMT

Those should work.

Or you can try tools similar to linux-imx/kdump.rst at lf-6.1.y · nxp-imx/linux-imx · GitHub

Best regards

Harvey