Try bmaptool. dd is a bad idea, yeah I killed my hard drive once. https://wiki.gnuradio.org/index.php/Copy_an_image_file_to_the_SD_card
The might even be package with Ubuntu. After writing, re-insert the card in the writer and see if it mounts the partitions. Philip On 11/16/2017 10:54 AM, Mann, John - 0662 - MITLL via USRP-users wrote: > Running Ubuntu 16 on my host computer... > > I downloaded the image from: > > http://files.ettus.com/e3xx_images/e3xx-release-4/ettus-e3xx-sg3/http://files.ettus.com/e3xx_images/e3xx-release-4/ettus-e3xx-sg3/sdimage-gnuradio-dev.direct.xz > > > Then I decompressed the xz file using xzdec: > > xzdec sdimage-gnuradio-dev.direct.xz >> sdimage-gnuradio-dev.direct > > And burned the sd image using the dd command: > > sudo dd if=sdimage-gnuradio-dev.direct of=/dev/sdb1 bs=1M > > The dd command apparently finishes without error after about 10 minutes, and > I can see flashing lights on the SD card USB adapter, so I'm pretty sure it > is getting written to the correct place. > > But the card does not work in the E312. When I turn it on, the 4 LEDs next > to the Tx/Rx ports light up, but there is no activity on the console window. > I have another SD card that boots up fine, so I know the E312 is fine. There > is clearly something wrong with the SD card. When I plug the old working > card into my Ubuntu host machine, I can actually see the files on the card. > When I plug the newly burned card back into the Ubuntu machine, I see nothing. > > Any idea what I am doing wrong? > > John Mann > MIT Lincoln Laboratory > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com