**** BEGIN LOGGING AT Fri Mar 13 03:00:43 2020 Mar 13 14:13:17 https://www.youtube.com/watch?v=Ifin8nPZpGA&feature=youtu.be Mar 13 14:13:25 how did I not realize the stream was already live?!? Mar 13 14:24:14 they announced it yesterday but didn't give a -> link which is kind of ... last minute silly. Mar 13 14:25:56 ugh ... google video is terrible. Mar 13 17:58:49 https://www.youtube.com/watch?v=BRpTTrxVC58 <-- open hardware coronavirus testing using BeagleBone Mar 13 17:59:19 should be starting up for afternoon sessions soon. https://2020.oshwa.org Mar 13 18:51:10 jkridner[m]: neat Mar 13 19:59:02 Beagle does PCR? Mar 13 19:59:11 :-D Mar 13 19:59:19 shipping since 2016 Mar 13 19:59:29 is there a website? no time to watch videos Mar 13 19:59:37 https://www.chaibio.com/openqpcr Mar 13 19:59:48 chaibio.com/coronavirus Mar 13 20:02:04 too bad no details on how they are holding the sample Mar 13 20:03:15 j #beagle-gsoc Mar 13 20:03:25 pradan[m]: yes, please do Mar 13 20:03:41 holding the sample? the mechanical design is published. Mar 13 20:04:17 https://grabcad.com/library/chai-open-qpcr-1 Mar 13 20:22:31 ds2: does that answer your q? Mar 13 22:43:34 none of that is detailed... trying to compare this to something i worked on Mar 13 22:44:56 jkridner[m]: nope.... just photos of the outside... I don't see any detailed docs on the mechanicals.... but inferring from the manual, they are using those pointy containers Mar 13 22:47:25 maybe the step file will let me take it apart Mar 13 22:48:03 This model does not appear to contain any geometry. Mar 13 22:48:04 Failure reason: Unknown Mar 13 22:48:05 heh Mar 13 23:10:23 Hello , can someone tell me if touchscreen which works with BBB will work with BB AI ? Mar 13 23:52:52 bleh...all locked up.. open... blah Mar 14 00:02:11 zmatt ?? Mar 14 00:22:20 Maker Faire no more... Mar 14 00:22:48 Dang COVID-19...on the upside. My bot is fully functioning now and is ready for when things take place. Mar 14 00:23:21 The Open Hardware conference was virtual this year. Mar 14 00:23:26 how is the feedback going on the CNC Cape being discussed. Mar 14 00:23:31 Is saw that. Mar 14 00:23:45 I clicked the link. Mar 14 00:23:57 7 hours might be difficult to manage on the computer. Mar 14 00:24:21 I mean...as a viewer instead of a participant. Mar 14 00:25:01 set_ got any photo's of your BOT ? Mar 14 00:26:06 Sure. Mar 14 00:26:10 Do you want to see it? Mar 14 00:26:29 I can make one really quickly. It is special. Mar 14 00:26:43 My "teflon Don." Mar 14 00:26:46 Yes Mar 14 00:26:50 Please hold. Mar 14 00:28:12 Oh and in advance, do not make fun of my "crud" floor. I have not gotten to it just yet. Mar 14 00:28:25 Set_, GenTooMan you guys use java? Mar 14 00:28:48 Not much these days, not anymore. Mar 14 00:29:55 There is a nice site with a tiny compiler for java Mar 14 00:29:59 https://github.com/jamiebuilds/the-super-tiny-compiler?utm_source=hackernewsletter&utm_medium=email&utm_term=code Mar 14 00:31:21 There is a nice site with a tiny compiler written in java Mar 14 00:31:46 >>> PICS <<< Mar 14 00:33:20 Had a bit of trouble with zmatts procedures to duping an SD card Mar 14 00:33:49 Okay. I took the picture and now time for imgur. Mar 14 00:34:25 kenunix no I don't Mar 14 00:34:32 Hummm, all those ping failures Mar 14 00:35:25 https://imgur.com/a/Y5dmgZ0 <<< does this work for viewing the Zumo Bot? Mar 14 00:36:39 It is for ramming and bashing but instead I have used it for a Gripper and some spins. Mar 14 00:36:59 Gripe a coke Mar 14 00:37:17 Yep. I think I can get a tennis ball in those jaws. Ha. Mar 14 00:37:43 Nice pic. Do you have a name for it? Mar 14 00:37:52 Nope. Mar 14 00:38:28 Battery's not connected. Mar 14 00:38:32 NOpe. Mar 14 00:38:37 Right. Mar 14 00:38:43 It is not connected right now. Mar 14 00:38:54 I can show you video if necessary. Mar 14 00:39:08 A man after my own heart "wires"! Mar 14 00:39:20 YOu saw how "wild" those wires are? Mar 14 00:39:30 I need to calm 'em down some. Mar 14 00:39:31 Yes... Mar 14 00:39:34 Ha. Mar 14 00:39:52 I should shorten them and streamline them. Mar 14 00:40:11 But...I wild man has to be wild. Am I right or am I right? Mar 14 00:40:32 Well when its all done use some tye-wraps Um, your right. Mar 14 00:40:39 Ha. Mar 14 00:40:41 Yep. Mar 14 00:40:42 Okay. Mar 14 00:41:06 The other Cape, the MotorCape can handle the power and I can use a USB Cam w/ it too. Mar 14 00:41:24 That Cape is a bit shy of "hardcore." Mar 14 00:41:51 It is nice and has nice attributes but it does not replace the MotorCape and its power availability. Mar 14 00:42:07 So I was using zmatt's steps today to clone an SD card. Had a problem. "hardcore"? Mar 14 00:42:31 KenUnix: Have you seen the Sumo Bot battles in China? Mar 14 00:42:54 They have these little rinks and two bots. They, two bots, are positioned and against each other. Mar 14 00:42:57 It is neat. Mar 14 00:43:17 Look up Sumo bot battle. Mar 14 00:43:35 Sumo bots. What a waste Mar 14 00:43:48 https://youtu.be/6zRBisoeD1E Mar 14 00:43:52 Why do you say that? Mar 14 00:44:56 Well I dunno. Are U having fun. That's all that really matters Mar 14 00:45:14 Yep and yes. Mar 14 00:45:22 I do not do the battles myself. Mar 14 00:45:30 I just thought it was neat. Mar 14 00:46:13 I have geared motors on my bot. So, the bot is extremely slow. Mar 14 00:46:28 I could not compete w/ the Sumo realm w/ my motors. Mar 14 00:46:42 brb Mar 14 00:46:48 Can I tell you about my problem cloning SD card following zmatt's steps. Mar 14 00:47:35 It follows. three lines... Mar 14 00:47:55 blkdiscard /dev/sda Mar 14 00:48:12 blkdiscard: /dev/sda: BLKDISCARD ioctl failed: Operation not supported Mar 14 00:48:20 thats it Mar 14 00:49:24 thet've made java and python for micro's now as well Mar 14 00:51:09 That's nuts Mar 14 00:51:13 Japanese Sumo Robot Fight Tournament || Fast and Furious Robot Battle Mar 14 00:54:12 Ha. Mar 14 00:54:26 Those Japanese people know how to party. Mar 14 00:54:52 It is so fast, though. Mar 14 00:55:07 One second one is up and the next second, it is out of the rink. Mar 14 00:55:35 I guess one day... Mar 14 00:55:55 I would like to make a bot in a bot. So, my bot can depart my other bot and then take control of the controls. Mar 14 00:55:56 It's like sex, slow is better Mar 14 00:56:01 Oh... Mar 14 00:56:05 Yep. Mar 14 00:56:07 I guess. Mar 14 00:56:20 blkdiscard /dev/sda Mar 14 00:56:24 blkdiscard: /dev/sda: BLKDISCARD ioctl failed: Operation not supported Mar 14 00:56:26 ??? Mar 14 00:56:35 Hmm. Mar 14 00:56:45 What did that person say that command was supposed to do? Mar 14 00:57:04 did you try sudo? Mar 14 00:57:18 Please hold before you try sudo. Mar 14 00:58:01 zmatt had me used after resize2fs -M /dev/mmcblk0p1 Mar 14 00:58:22 Oh. Mar 14 00:58:36 When doing all these commands I do sudo -s Mar 14 00:58:44 I use sudo w/ the blkdiscard command. Mar 14 00:58:45 Oh. Mar 14 00:59:04 Did you try sudo -i or sudo su? Mar 14 00:59:15 Are you on your BBB when trying these commands? Mar 14 00:59:26 It all seemed to work though. I will have to ask zmatt Mar 14 00:59:38 Yea. I think it is best left to that person. Mar 14 00:59:53 sudo -s starts a shell Mar 14 00:59:59 That person knows a lot more than on do regarding Linux filesystems. Mar 14 01:00:04 Oh. Mar 14 01:03:59 https://www.sudo.ws/man/1.9.0/sudo.man.html Mar 14 01:04:19 That might give some insight on how to handle speific sudo commands w/ args. Mar 14 01:06:57 Yea -s Run the shell specified by the SHELL environment variable if it is set or the shell specified by the invoking user's password database entry. If a command is specified, it is passed to the shell for execution via the shell's -c option. If no command is specified, an interactive shell is executed. Note that most shells behave differently Mar 14 01:06:58 when a command is specified as compared to an interactive session; consult the shell's manual for details. Mar 14 01:07:42 I don't see "su" Mar 14 01:13:04 Oh. Yea. Mar 14 01:13:10 "sudo su" is silly Mar 14 01:13:10 That makes sense. Mar 14 01:13:27 It is an alias sort of. Mar 14 01:13:32 Another user. Mar 14 01:13:44 no, "sudo su" is just a weird and inefficient way to do "sudo -s" Mar 14 01:13:50 Oh. Mar 14 01:15:53 zmatt, had a problem today cloning SD card Mar 14 01:17:43 After sudo blkdiscard /dev/sda got Mar 14 01:18:05 blkdiscard: /dev/sda: BLKDISCARD ioctl failed: Operation not supported Mar 14 01:18:22 oh your usb cardreader doesn't support blkdiscard, that sucks Mar 14 01:19:09 just eject the source card from the bbb, stick the destination card into the bbb directly and wipe it with sudo blkdiscard /dev/mmcblk0 Mar 14 01:19:20 But I continued on and everything seems to work well. Mar 14 01:19:25 or that Mar 14 01:20:03 you're running from that card now? Mar 14 01:20:10 yes Mar 14 01:20:27 it may be useful to do this once: sudo fstrim / Mar 14 01:20:55 that will basically do blkdiscard but only on the free space of your filesystem Mar 14 01:22:43 the point of discard is to ensure the sd card knows that the free space is free, this can allow the sd card to manage physical allocation more efficiently and in principle increase the lifetime of the card Mar 14 01:23:17 got with -v /: 0 B (0 bytes) trimmed Mar 14 01:23:34 set_: this shows what happens when you use "sudo su" ... you actually create a su-session inside a sudo-session: https://pastebin.com/XHCDGdwK Mar 14 01:23:39 KenUnix: ok :) Mar 14 01:23:58 that's weird actually Mar 14 01:24:24 or maybe it isn't, hmm Mar 14 01:24:28 Well I'll add it to the steps anyway Mar 14 01:24:46 if you use blkdiscard then you won't need to add fstrim as step Mar 14 01:25:15 and it's not a hugely important step anyway, plus the output with -v suggests it's not even working for some reason Mar 14 01:27:10 Yea I was looking at sets_ sudo su. He's superuser within superuser Mar 14 01:27:31 yep, two nested sessions Mar 14 01:27:52 set_ stick with sudo -s Mar 14 01:28:05 Okay. Mar 14 01:28:22 I am trying to disable node-red and ideas? Mar 14 01:29:11 KenUnix: disable or remove? Mar 14 01:29:40 do you use it? Mar 14 01:29:49 I disable node-red.service and node-red.socket but it still starts Mar 14 01:30:20 that's odd Mar 14 01:30:31 GenTooMan not today maybe in the future. Mar 14 01:30:34 wait... Mar 14 01:31:40 maybe one of those gets pulled in as dependency by another service? Mar 14 01:32:16 i did systemctl -a | grep node-red and it still shows up as loaded Mar 14 01:32:58 "loaded" doesn't mean anything Mar 14 01:33:12 does systemctl status node-red node-red.socket say either of them is active? Mar 14 01:36:29 I disabled node-red.socket but it still says Mar 14 01:36:33 Mar 13 19:27:51 beaglebone systemd[1]: Listening on node-red.socket. Mar 14 01:37:20 note: disable won't stop a service, it should just prevent it from being started automatically (except as dependency) Mar 14 01:37:29 also that line is just the most recent log output and doesn't say anything Mar 14 01:38:13 what matters is what it says after "Active:" on the third line Mar 14 01:38:30 and if it's running then TriggeredBy on the next line tells you why Mar 14 01:38:47 (in some cases) Mar 14 01:39:25 Your good. Disabling & stopping it killed it. Mar 14 01:41:10 sudo su is silly for you young uns! Mar 14 01:41:11 hm okay fstrim does seem to work sometimes Mar 14 01:42:03 though sudo su - is the safer one to use Mar 14 01:42:14 sudo -i you mean :P Mar 14 01:42:39 young wipper snapper! Mar 14 01:43:11 all because debian wants to bastardize things Mar 14 01:43:18 ehm, what? Mar 14 01:44:22 nobody is forcing you to use sudo, feel free to use su instead (or better yet, just ssh into the root account using public-key authentication), but "sudo su" is silly Mar 14 02:22:44 good night **** ENDING LOGGING AT Sat Mar 14 03:02:45 2020