There's no need to remove them - sda2 is written like a memory buffer in a circular way - overwriting old images.
Right now you need to read /mnt/sda1/camogm.disk to track where recording started/stopped. If you remove it the recording will be started from the beginning of the partition: elphel393~# rm /mnt/sda1/camogm.disk (camogm might need to be restarted after this) To actually erase data you can use dd, getting data from "if=/dev/zero" and writing to "of=/dev/sda2". Sometimes only one shows up (it isn't always the same port). > Reproduced the problem. Oleg On Mon, Apr 9, 2018 at 12:39 PM, Mohamed Morsy <mmo...@redzone.com> wrote: > Also, how can I remove the files from the sda2 partition once I'm done? > > On Mon, Apr 9, 2018 at 2:26 PM, Mohamed Morsy <mmo...@redzone.com> wrote: > >> I'm using 3 sensors. Sometimes only one shows up (it isn't always the >> same port). >> >> On Mon, Apr 9, 2018 at 1:58 PM, Oleg <support-list@support.elphel.com> >> wrote: >> >>> Mohamed, >>> >>> >>>> I reformatted the drive so sda2 is raw. Now I'm trying to copy a >>>> recording from there. I'm not sure what you meant by: >>>> run https://git.elphel.com/Elphel/eyesis4pi-393-gui/blob/mas >>>> ter/footage_downloader/split_mov.php from inside the directory with >>>> image.bin >>>> >>> >>> I meant - download the script and run it (provided php is installed), >>> for example: >>> * save the split_mov.php to directory with downloaded footage >>> (<some_dir>) >>> Then in terminal: >>> $ cd <some_dir> >>> $ php split_mov.php >>> >>> * The footage can be the one you downloaded from the raw partition or >>> you can test with any .mov (just change the extension to .bin). >>> * The script scans the working directory (<some_dir>) for *.bin files >>> then opens them as binary, looks for images (by exif header marker) and >>> extracts them. >>> >>> Also, when I use the 14MPx sensors with nand, the cameras don't always >>>> show up. Sometimes only one shows up or none of them do. Any ideas what >>>> might be wrong? >>>> >>> Don't know, need to test. >>> Are there 2 sensors? >>> When a single sensor shows up - is it always the same port? which one? >>> >>> Best regards, >>> Oleg Dzhimiev >>> Electronics Engineer >>> phone: +1 801 783 5555 x124 >>> Elphel, Inc. >>> >> >> > > _______________________________________________ > Support-list mailing list > Support-list@support.elphel.com > http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com >
_______________________________________________ Support-list mailing list Support-list@support.elphel.com http://support.elphel.com/mailman/listinfo/support-list_support.elphel.com
