Date: Thu, 19 Feb 1998 12:56:25 +0100 From: "Stefan Bethke" <stefan@promo.de> To: hackers@FreeBSD.ORG Subject: Graceful shutdown by single keypress? Message-ID: <561614.3096881785@stefan.promo.de>
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For an exibition, we need a system that can be shut down gracefully by pressing a single button on the system, instead of typing commands or anything complicated like that. Also, the system should as much as possible be able to recover from a power failure (read: someone pulling the plug). As this system will be out there on its own, with no-one near with even the faintest knowledge of unix (or computers at all), I want it to be as rugged as possible. Most filesystems will be mounted r/o, and those that are not can be reconstructed on the fly. However, as I don't like the idea of telling people to simply cut off power to the system (there won't be neither monitor nor keyboard), I'm looking into an ATX system with APM support that can switch itself off. Instead, I'd like to tell the operators to press the suspend key on the system, and wait for it to switch itself off. As I currently have no APM system to test this on (I will get the system the next few days), I'm interested in experiences with APM on desktop machines, and the feasibility of my idea. Also, if someone has any recommendations on a specific pentium mainboard, I'd be happy to hear them. If the suspend key won't allow shutting down the system, I could also plug the key (or the reset key) into the LPT or COM port to be polled by some daemon, which then would do a shutdown with power off. It would be acceptable for me to hack the kernel to add any necessary APM power-off command, if needed. TIA, Stefan -- Stefan Bethke Promo Datentechnik | Tel. +49-40-851744-18 + Systemberatung GmbH | Fax. +49-40-851744-44 Eduardstrasse 46-48 | e-mail: stefan@Promo.DE D-20257 Hamburg | http://www.Promo.DE/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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