Greetings folks; This is a heck of a thing to throw out on Christmas Eve.
I am about burned out on trying to make the raspi 3b work. I saw it work once, for about 2 days, then an update blew it up by replacing the rt kernel, and it has not worked since. In the sd cards I've made since, probably 8 or more, following the recipe given, the halrun;halc md loadrt hostmot2;loadrt hm2_rpspi test procedure works perfectly. But linuxcnc refuses to load that hm2_rpspi driver. Mr. Martinjack built me an image and sent me the link to it. No gui, so testing would have to be done over an ssh -Y login. He, I believe went to quite some effort to do that, and I assume that it worked on his raspi-3b. But when I wrote it to a zeroed 32Gb card, expanded the filesystem on the first boot, then configured the networking in static mode, making it immutable as I went so whatever raspian uses in place of network-mangler can't tear it down on the next boot, the result can't do the halrun test. ------------------------------------------- pi@raspberrypi:~ $ halrun halcmd: loadrt hostmot2 Note: Using POSIX realtime hm2: loading Mesa HostMot2 driver version 0.15 halcmd: loadrt hm2_rpspi Unknown board: HOST???? hm2_rpspi: rtapi_app_main: Operation not permitted (-1) <stdin>:2: waitpid failed /usr/bin/rtapi_app hm2_rpspi <stdin>:2: /usr/bin/rtapi_app exited without becoming ready <stdin>:2: insmod for hm2_rpspi failed, returned -1 --------------------------------------------- which is the same failure I get when trying to start linuxcnc on one of my builds. And this is the 2nd pi-3b I've put in. Does my use of a 32GB card have anything to do with this? Does my use of the full jessie install instead of the jessie-lite have anything to do with this? I can try that once. If that fails, I'll quit beating my head with a hammer and reset this 7i90 to an epp interface and go back to an x86 computer to drive it, but that brings up the next $64K question. The big old Dell I have to drive it with isn't swarf proof by any means, and it will take at least 6 or even 8 feet of ribbon cable to get it far enough away from the swarf to be safe from flying chips. Can I use a ribbon cable that long with good results? The man page says it could be a problem but doesn't say how long is too long. And I've no clue if the parport on this old Dell can be made epp-1.9 compliant. TBD I guess. Thanks everybody. And have a Merry Christmas. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today.http://sdm.link/intel _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
