On 11/16/2017 04:37 PM, Anon Lister wrote: > Make sure to run sync after to dd.
Interesting, I thought dd would run below the buffer cache layer. > > Also curious as to reason for the recommendation against dd? > bmaptool is faster. bmaptool also checks to see if the device has a mounted file system, so prevent you form overwriting something like /dev/sda. Basically, safer and faster. Philip > On Nov 16, 2017 12:35 PM, "Philip Balister via USRP-users" < > usrp-users@lists.ettus.com> wrote: > >> 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 >> > _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
