I’ve had this problem myself. If you are using NFS and systemd, then you must prevent connman from managing eth0:
In /lib/systemd/system/connman.service, add -I eth0 to the connmand line Regards, John > On Feb 19, 2016, at 3:44 PM, Audrey <a...@smith.edu> wrote: > > Hi everyone, > > I want to enable SPI0 on beaglebone black, and I've been following resources > online: > > http://embedded-basics.blogspot.com/2014/10/enabling-spi0-on-beaglebone-black.html > http://elinux.org/BeagleBone_Black_Enable_SPIDEV > > after changing uEnv.txt and rebooting bbb however, bbb doesn't come back > online. All 4 of the usr LEDs are on, and I can no longer connect back to > beaglebone. > > Firstly, a few clarifications, in My Computer > BeagleBone Getting Started, I > did not find any uEnv.txt file, but nfs-uEnv.txt. The contents of > nfs-uEnv.txt are: > > ##Rename as: uEnv.txt to boot via nfs > ##https://www.kernel.org/doc/Documentation/filesystems/nfs/nfsroot.txt > ##SERVER: sudo apt-get install tftpd-hpa > ##SERVER: TFTP_DIRECTORY defined in /etc/default/tftpd-hpa > ##SERVER: zImage/*.dtb need to be located here: > ##SERVER: TFTP_DIRECTORY/zImage > ##SERVER: TFTP_DIRECTORY/dtbs/*.dtb > ##client_ip needs to be set for u-boot to try booting via nfs > client_ip=192.168.1.101 > #u-boot defaults: uncomment and override where needed > #server_ip=192.168.1.100 > #gw_ip=192.168.1.1 > #netmask=255.255.255.0 > #hostname= > #device=eth0 > #autoconf=off > #root_dir=/home/userid/targetNFS > #nfs_options=,vers=3 > #nfsrootfstype=ext4 rootwait fixrtc > > In the embedded-linux blog, he suggested to delete everything in the file and > put in > > optargs=quiet drm.debug=7 capemgr.enable_partno=BB-SPI0-01 > > I however followed the instructions from elinux, and just copied the the > above line. After that, I changed the name of the file from nfs-uEnv.txt to > just uEnv.txt and rebooted bbb by typing reboot on the terminal, and now I > don't think bbb works. > > Any ideas on what I'm doing wrong? > > Thanks. > > -- > For more options, visit http://beagleboard.org/discuss > <http://beagleboard.org/discuss> > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com > <mailto:beagleboard+unsubscr...@googlegroups.com>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
