Date: Tue, 16 Mar 1999 14:52:42 -0700 From: Warner Losh <imp@harmony.village.org> To: Steve Passe <smp@csn.net> Cc: hackers@FreeBSD.ORG Subject: Re: power-off without halt Message-ID: <199903162152.OAA04845@harmony.village.org> In-Reply-To: Your message of "Tue, 16 Mar 1999 13:31:42 MST." <199903162031.NAA01135@Ilsa.StevesCafe.com> References: <199903162031.NAA01135@Ilsa.StevesCafe.com>
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In message <199903162031.NAA01135@Ilsa.StevesCafe.com> Steve Passe writes: : The ideas along the lines of an MFS based working partition, with everything : else mounted readonly also has merit. I'll be back after mulling this over : some more... If you have a serial interface free, you could have a button that would send a break over that line and then some small time later remove power from the system. Also, ATA flash card support in FreeBSD[*] is on the horizon which might offer some interesting possibilites as well. It might be fast enough to sync the unwritten data to quickly enough if you could somehow get an interrupt that says that power is failing and you have n mS before it is gone. Warner P.S. One can use ATA flash cards right now on FreeBSD by connecting them directly to the "IDE" bus, since they are just disks. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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