One way to do that is to use a USB Hard disk enclosures that requires AC power. Connect this enclosure to mains and add a cheap / spare SATA desktop HDD.
With a cron job, a shell script can check presence of this HDD (E.g. lsusb | grep "device-id-here") every minute. If this HDD is not present, shutdown can be initiated by the same script. Similarly, you can attach a cheap / spare router (would cost 400 - 900 Rs) to AC mains and check reach-ability of this router to determine presence of power in mains. On Fri, Feb 15, 2013 at 7:57 PM, Binand Sethumadhavan <[email protected]>wrote: > > (idea is to detect power failures, while powered by a "dumb" UPS unit - one > that cannot communicate with the a computer. Any other > solutions/suggestions?). > > Binand > -- > http://mm.ilug-bom.org.in/mailman/listinfo/linuxers > -- http://mm.ilug-bom.org.in/mailman/listinfo/linuxers
