Re: sysctl to prevent reboot?

From: Brad Davis <brd_at_FreeBSD.org>
Date: Fri, 11 Jul 2025 03:30:31 UTC 
On Thu, Jul 10, 2025, at 8:01 AM, Warner Losh wrote:
> 
> 
> On Thu, Jul 10, 2025, 7:52 AM Bjoern A. Zeeb <bzeeb-lists@lists.zabbadoz.net> wrote:
>> On Thu, 10 Jul 2025, Zhenlei Huang wrote:
>> 
>> Hi,
>> 
>> > I believe Konstantin's work [1] and  [2] are precisely what you need.
>> >
>> > [1] https://cgit.freebsd.org/src/commit/?id=7fb88c20eccc3fd2118fda2ba58d7afe2b87f7e3 <https://cgit.freebsd.org/src/commit/?id=7fb88c20eccc3fd2118fda2ba58d7afe2b87f7e3>   shutdown(8): refuse to run if /var/run/noshutdown is present
>> > [2] https://cgit.freebsd.org/src/commit/?id=384d976725a5c29734a9227fcdb6ef0807485c91 <https://cgit.freebsd.org/src/commit/?id=384d976725a5c29734a9227fcdb6ef0807485c91>  rc.d: Add precious_machine rc.conf knob to create /var/run/noshutdown
>> 
>> Thanks!  I was looking in the wrong place.
>> 
>> That doesn't catch reboot, does it?  For me that's the offending command
>> as I type that at the loader prompt (if I am in the correct window).
> 
> 'alias reboot shurdown -r' has other benefits as well

Please elaborate?


Regards,
Brad Davis