Thanks for response. I'm embarrassed to say I had not prepared the SD card correctly. The instructions on elinux.org for rpi helped me.
The image, BBB-eMMC-flasher-debian-jessie-lxqt-armhf-2014-12-19-2gb.img, installed without any help from me as the uEnv.txt edits were automated. There is still a complaint in the syslog about the file system which I had better chase down, but I have a working Jessie image on the BBB. -- 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.