**** BEGIN LOGGING AT Tue May 22 02:59:56 2007 May 22 12:13:00 hello all May 22 12:13:24 can anyone tell where /dev/log is created in slugos? (A named pipe, or socket?) May 22 13:25:37 Do you mean where in the boot process it is created? May 22 16:49:21 so, 6V -will- damage or destroy my nslu2? May 22 17:01:32 20% above rated voltage won't be healthy. If it doesn't die immediately, certain components will probably die from heat exhaustion. May 22 17:03:04 Traditionally, plus or minus 10% is the reasonable max, and a supply rated at plus/minus 5% is very good. But it varies a lot if the devices all have internal regulation. May 22 17:03:55 Part of the NSLU2 is internally regulated; part just gets the raw PSU voltage (which is passed right through to the USB bus without even a diode on the NSLU2!) May 22 17:04:32 meaning that it may overpower the USB devices? May 22 17:04:40 Yes. May 22 17:05:04 So even if the slug survives, you may find a USB device that reacts poorly. May 22 17:05:13 * DrJ is still looking for a way to cut this 6V down to 5V May 22 17:05:47 If you run the 6V supply through a silicon diode of appropriate ratings, you will get a 0.6V drop -- that reduces it to nominally 5.4V, which is on the upper edge of being ok. May 22 17:06:03 http://cyberpowersystems.com/phonesaver.asp May 22 17:06:07 that's what it will go through May 22 17:06:32 Two diodes in series gets you to 4.8V - the slug will probably run, but you might find that USB-powered 2.5" disks may not be able to spin up. May 22 17:06:58 everything connected to my slug May 22 17:07:02 has its own power unit May 22 17:07:44 what are diodes May 22 17:08:17 Interesting that they don't tell you how much current it can provide when running from the battery. That might be a problem, as the NSLU2 supply can do 2A. May 22 17:08:51 Battery 4AH, 6V Battery May 22 17:09:44 Right, but there must be some type of fuse or current limiter - a gel-cell can easily melt a typical connector if shorted. May 22 17:10:03 do I need to worry about how much Amps or whatever the nslu2 gets also? May 22 17:10:20 Yes. May 22 17:10:33 does it have to be the exactly 2? May 22 17:11:24 Frankly, unless you are prepared to do some modifications, that unit is not going to replace the NSLU2's supply. You'd do better just getting a small ordinary UPS instead. May 22 17:11:48 well, my dad said he could fix the voltage problem May 22 17:11:56 so unless Amps are a problem also May 22 17:12:25 either way May 22 17:12:26 (no it doesn't need to be 2.0 amps, just enough to power the load. If everything is self-powered, then the slug itself only draws a max of 1A. May 22 17:12:29 ) May 22 17:12:35 I got this thing for around $10 May 22 17:12:43 so its worth a try I think May 22 17:13:00 However, if everything is self-powered, and doesn't draw from the slug, then when the power drops, the external devices will die -- and your slug will probably fail as well. May 22 17:13:07 my dad said he would use an inline resistor May 22 17:13:22 A resistor drops voltage in proportion to load. May 22 17:13:43 ? May 22 17:14:20 So the more load, the less voltage you'd get at the slug. But conversely, if the slug ever changed it's operating mode (shut off the USB ports, for example) and drew significantly less current, the voltage would rise back up again. May 22 17:14:24 Ohms law. May 22 17:15:57 [01:13:06:pm] However, if everything is self-powered, and doesn't draw from the slug, then when the power drops, the external devices will die -- and your slug will probably fail as well. May 22 17:16:07 as for that, my goal isn't to be able to use the slug during a power failer May 22 17:16:15 just keep it powered on May 22 17:16:20 so I don't have to turn it back on May 22 17:17:29 just my way of making this slug aways poweron May 22 17:17:33 There's a hardware mod to autopower-on the device. May 22 17:17:37 yea May 22 17:17:41 but I didn't want to attempt that May 22 17:18:06 But you're willing to attempt *this* and risk frying your slug? :p May 22 17:18:15 Be careful May 22 17:18:21 well, its not a huge deal May 22 17:18:26 I buy and resell these things May 22 17:18:30 and make $$$ from it May 22 17:18:33 so I always have more May 22 17:19:51 Disposable slugs! love it :) I spent my "toy" budget for this half of the year already, so I need to protect my slugs :) May 22 17:20:01 hey May 22 17:20:05 you can make money off it May 22 17:20:07 my last sell May 22 17:20:25 paid $52.50 for the unit May 22 17:20:29 sold for $105 May 22 17:21:37 Normally I pocket right around $20 per sell May 22 17:22:30 not saying one bit though that I want to destroy one May 22 17:22:39 or even chance it May 22 17:22:55 I'm not completly sure if another one will work with a hd unslinged by another unit May 22 17:22:56 will it? May 22 17:24:16 I'm pretty sure I read a long time ago it wont May 22 18:51:18 hi May 22 19:36:18 03bzhou * r6066 10optware/trunk/make/lighttpd.mk: lighttpd: added e2fsprogs to the SUGGESTS list May 22 22:01:34 03rwhitby * r850 10kernel/trunk/Makefile: Special case modules for when SNAPSHOT is the same as BASEVER (e.g. 2.6.21.1) May 22 23:20:03 03bzhou * r6067 10optware/trunk/make/calcurse.mk: calcurse: 1.7 -> 1.8 May 23 02:32:21 03bzhou * r6068 10optware/trunk/make/phoneme-advanced.mk: phoneme-advanced: check out legal/ once and put in tarball; use default javac but allow override May 23 02:33:51 03bzhou * r6069 10optware/trunk/ (Makefile platforms/packages-slugosbe.mk): phoneme-advanced: nudi is ready, turn on the build except slugosbe **** ENDING LOGGING AT Wed May 23 02:59:57 2007