On Wed, 12 May 2021 22:44:56 -0400 "Walter Dnes" <waltd...@waltdnes.org> wrote:
> On Wed, May 12, 2021 at 11:16:56AM -0700, Mark Knecht wrote > > > > Is there nothing in the system logs? What's near the end before whatever > > you get from booting after this issue? > > Where would those logfiles be? "dmesg" starts off with... > > [ 0.000000] Linux version 5.10.27-gentoo (root@i3) (gcc (Gentoo 10.2.0-r5 > p6) 10.2.0, GNU ld (Gentoo 2.34 p6) 2.34.0) #1 SMP Mon Apr 19 20:56:52 EDT > 2021 > [ 0.000000] Command line: BOOT_IMAGE=Experimental ro root=801 noexec=on > net.ifnames=0 intel_pstate=disable ipv6.disable=1 > [ 0.000000] x86/fpu: x87 FPU will use FXSAVE > [ 0.000000] BIOS-provided physical RAM map: > > etc. This has happened with various kernels. Note that "Experimental" > is the latest kernel version. "Production" is the previous working > kernel I've compiled. It serves as a fallback in case I screw things up > on the "make menuconfig" step. It also saved me years ago on the switch > from /dev/hdx to /dev/sdx. > Maybe you can set in /etc/conf.d/bootmisc the variable previous_dmesg="YES" That should preserve the last dmesg after a reboot, i.e. /var/log/dmesg.old would be the file you want to look at after hard reset. Cheers Andreas
