On 2024-03-23, Florian Obser <flor...@openbsd.org> wrote:
>
> diff --git libexec/reorder_kernel/reorder_kernel.sh
> libexec/reorder_kernel/reorder_kernel.sh
> index fb1d151f42a..809d1e18e55 100644
> --- libexec/reorder_kernel/reorder_kernel.sh
> +++ libexec/reorder_kernel/reorder_kernel.sh
> @@ -30,6 +30,14 @@ SHA256=/var/db/kernel.SHA256
> # Silently skip if on a NFS mounted filesystem.
> df -t nonfs $KERNEL_DIR >/dev/null 2>&1
>
> +# Silently skip if battery is less than 50% remaining.
> +# We know nothing of the quality of the powergrid and we do not
> +# want the relink to fail halfway through because of power outage.
> +(( $(/usr/sbin/apm -l) < 50 ))
Don't forget upd(4)! Maybe it could also time an md5 -ttt run and demand
more available battery if the machine is slow.
> +# Disable halt(8) & reboot(8) to prevent interuption of the kernel relink.
> +/bin/chmod 000 /sbin/{halt, reboot}
Also hw.allowpowerdown=0 and shutdown. And what about the watchdog?
> We should also disable panic(9) in the kernel while reorder_kernel is
> running. Maybe a sysctl?
Disabling panic, that's genius, it would solve so many problems!
