As promised, I have prepared an SD card image for the beaglebone ready-to-run.
README: http://static.mah.priv.at/public/beaglebone/starterkit/README.beaglebone-sd download from: http://static.mah.priv.at/public/beaglebone/starterkit/ Please understand this as a 'raw hide, some assembly required' image for users who can help themselves in a bare linux environment - this is not a polished 'pacakge', no desktop, no colored buttons to start LinuxCNC. I'd like to thank all folks who beta-tested this and suggested improvements: Kent, Charles, David, Yishin Li, Amit. - Michael ps: Gscreen runs nicely too. Axis is real CPU hog. Emcweb is very lightweight. All advanced features in master work fine too! ---- README.beaglebone-sd ---- What is it: An 4GB size SD card image for the BeagleBone board, which contains: - Debian Wheezy - the Xenomai 3.2.21 kernel with Xenomai 3.6 support in-kernel - the Xenomai 2.6 runtime support installed (master) - all prerequisite packages for LinuxCNC installed - two LinuxCNC development branches installed ready to run: arm335x-hal-pru-module-emcweb (v2.5_branch - based) arm335x-hal-pru-module-emcweb-master (master-based) both branches track git://git.mah.priv.at/emc2-dev.git Alternatively, tar files of the boot and root partitions: -rw-r--r-- 1 mah mah 3974103040 Apr 23 16:56 beaglebone_sd4GB.img -rw-r--r-- 1 mah mah 380457 Apr 23 16:56 boot.tar.gz -rw-r--r-- 1 mah mah 1704164777 Apr 23 17:28 root.tar.gz The kernel and include files used in this image is here, it is a slightly updated version of what has been available so far (still 3.2.21/2.6 based, but all patches from arago/v3.2-staging applied): -rw-r--r-- 1 mah mah 9617304 Apr 21 09:50 linux-3.2.21-xenomai+.tar.gz -rw-r--r-- 1 mah mah 824139 Apr 21 09:51 linux-headers-3.2.21-xenomai+.tar.gz How to get it to run: - download - copy to a 4GB MicroSD card: determine which device the SD card has, and make sure it is umounted assuming the card is at /dev/sdb, run this $ sudo dd if=beaglebone_sd4GB.img of=/dev/sdb bs=10M - insert into beaglebone SD slot abd boot Alternatively you can extract the tar files to a mounted SD card which is formatted like so: partition 1 - VFAT, size 64MB, formatted as vfat, marked as bootable partition 2 - ext4, size 3.8GB or greater, How to log in: user root password linuxcnc user linuxcnc password linuxcnc Running LinuxCNC: a. Let the beaglebone complete the boot process. b. From the X-server host enter the command $ ssh -X -l linuxcnc <beaglebone ip address> c. answer the password prompt d. after login is complete continue as outlined below. Charles' super-high-speed stepper demo config can be run like so: $ cd ~/linuxcnc-pru-emcweb/configs/pru-examples $ linuxcnc pru-stepper.ini To run the miniEMC2 Web server config: $ cd ~/linuxcnc-pru-emcweb/configs/sim $ linuxcnc emcweb.ini Then connect to the webserver at http://<ip-address-of-beaglebon>:8080 What happens on startup in /etc/rc.local: echo 0 > /proc/sys/kernel/hung_task_timeout_secs modprobe uio_pruss # load the PRU support driver # enable group 1002 (xenomai) to use Xenomai RT functions echo 1002 > /sys/module/xeno_nucleus/parameters/xenomai_gid # I dont understand why this is needed: # NB: here comes your security hole! chmod 644 /dev/mem Partitions on sd card: Mine looks like so (if I plug in the SD card on some other Linux machine): $ fdisk /dev/sdb You will not be able to write the partition table. Command (m for help): p Disk /dev/sdb: 3974 MB, 3974103040 bytes 123 heads, 62 sectors/track, 1017 cylinders, total 7761920 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 * 2048 133119 65536 b W95 FAT32 /dev/sdb2 133120 7761919 3814400 83 Linux Command (m for help): The output of 'sfdisk -d' on the beaglebone looks like so: # partition table of /dev/mmcblk0 unit: sectors /dev/mmcblk0p1 : start= 2048, size= 131072, Id= e, bootable /dev/mmcblk0p2 : start= 133120, size= 15144960, Id=83 /dev/mmcblk0p3 : start= 0, size= 0, Id= 0 /dev/mmcblk0p4 : start= 0, size= 0, Id= 0 ------------------------------------------------------------------------------ Try New Relic Now & We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, & servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
