Dear USRP users, I recently start experimenting with USRP e110. I seems to experience some unstable behavior. When booting it up, it sometimes report unable to mount file system, this is the error output: List of all partitions: b300 4027392 mmcblk0 driver: mmcblk b301 65472 mmcblk0p1 00000000-0000-0000-0000-000000000mmcblk0p1 b302 3961856 mmcblk0p2 00000000-0000-0000-0000-000000000mmcblk0p2 No filesystem could mount root, tried: ext3 Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,2) Sometimes it says: Booting from mmc ... Wrong Image Format for bootm command ERROR: can't get kernel image! Sometimes my e110 boots OK, but after a while, eg, try to compile and update UHD, I get error: mmcblk0: error -110 sending read/write command, response 0x900, card status 0xe00 mmcblk0: error -110 transferring data, sector 6946816, nr 8, card status 0xc00 end_request: I/O error, dev mmcblk0, sector 6946817 Buffer I/O error on device mmcblk0p2, logical block 851968 lost page write due to I/O error on mmcblk0p2 After those error, I think the file system becomes read only mode.. I have not touched the image on the SD card, it is still the out-of-factory mode.. I wonder what is the cause for all the error and unstable behavior? Does it mean the SD card is defected ? Kind regards, -- Wei Liu Researcher Ghent University - IBBT Department of Information Technology (INTEC) Internet Based Communication Networks and Services (IBCN) Zuiderpoort Office Park, Building C0 Gaston Crommenlaan 8 bus 201 9050 Gent, Belgium http://www.ibcn.intec.ugent.be/ Phone: +32 (0)9 33 14946 Fax: +32 (0)9 33 14899 E-mail: wei.liu@intec.UGent.be Route: http://www.ibcn.intec.ugent.be/route.html

On 06/27/2013 11:48 AM, lwei wrote: > Dear USRP users, > > I recently start experimenting with USRP e110. > I seems to experience some unstable behavior. Can you make a new sd card from these instructions: http://ettus-apps.sourcerepo.com/redmine/ettus/projects/usrpe1xx/wiki/Images and then run opkg update opkg upgrade and reboot. Philip > > When booting it up, it sometimes report unable to mount file system, > this is the error output: > List of all partitions: > b300 4027392 mmcblk0 driver: mmcblk > b301 65472 mmcblk0p1 > 00000000-0000-0000-0000-000000000mmcblk0p1 > b302 3961856 mmcblk0p2 > 00000000-0000-0000-0000-000000000mmcblk0p2 > No filesystem could mount root, tried: ext3 > Kernel panic - not syncing: VFS: Unable to mount root fs on > unknown-block(179,2) > > Sometimes it says: > Booting from mmc ... > Wrong Image Format for bootm command > ERROR: can't get kernel image! > > Sometimes my e110 boots OK, but after a while, eg, try to compile and > update UHD, I get error: > mmcblk0: error -110 sending read/write command, response 0x900, card > status 0xe00 > mmcblk0: error -110 transferring data, sector 6946816, nr 8, card status > 0xc00 > end_request: I/O error, dev mmcblk0, sector 6946817 > Buffer I/O error on device mmcblk0p2, logical block 851968 > lost page write due to I/O error on mmcblk0p2 > > After those error, I think the file system becomes read only mode.. > > I have not touched the image on the SD card, it is still the > out-of-factory mode.. > > I wonder what is the cause for all the error and unstable behavior? > Does it mean the SD card is defected ? > > Kind regards, > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >

Hi Philip, I tried to create a new SD image with a different SD card, same type and same size as the original one. This is the output I got at the end of running the "sudo ./MakeEttusSDCard.sh /dev/sdb": This filesystem will be automatically checked every 25 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. Populating boot partition files Boot partition complete Populating rootfs partition files This will take several minutes . . . Rootfs partition complete SD card creation was successful So everything looks ok, except the E110 doesn't boot. I notice before that when it starts up, open the E110 case, there is blue LED flashing, now there isn't.. Any idea why it does not boot? Thanks, Wei On Thu, 2013-06-27 at 13:33 -0400, Philip Balister wrote: > On 06/27/2013 11:48 AM, lwei wrote: > > Dear USRP users, > > > > I recently start experimenting with USRP e110. > > I seems to experience some unstable behavior. > > Can you make a new sd card from these instructions: > > http://ettus-apps.sourcerepo.com/redmine/ettus/projects/usrpe1xx/wiki/Images > > and then run > > opkg update > opkg upgrade > > and reboot. > > Philip > > > > > > When booting it up, it sometimes report unable to mount file system, > > this is the error output: > > List of all partitions: > > b300 4027392 mmcblk0 driver: mmcblk > > b301 65472 mmcblk0p1 > > 00000000-0000-0000-0000-000000000mmcblk0p1 > > b302 3961856 mmcblk0p2 > > 00000000-0000-0000-0000-000000000mmcblk0p2 > > No filesystem could mount root, tried: ext3 > > Kernel panic - not syncing: VFS: Unable to mount root fs on > > unknown-block(179,2) > > > > Sometimes it says: > > Booting from mmc ... > > Wrong Image Format for bootm command > > ERROR: can't get kernel image! > > > > Sometimes my e110 boots OK, but after a while, eg, try to compile and > > update UHD, I get error: > > mmcblk0: error -110 sending read/write command, response 0x900, card > > status 0xe00 > > mmcblk0: error -110 transferring data, sector 6946816, nr 8, card status > > 0xc00 > > end_request: I/O error, dev mmcblk0, sector 6946817 > > Buffer I/O error on device mmcblk0p2, logical block 851968 > > lost page write due to I/O error on mmcblk0p2 > > > > After those error, I think the file system becomes read only mode.. > > > > I have not touched the image on the SD card, it is still the > > out-of-factory mode.. > > > > I wonder what is the cause for all the error and unstable behavior? > > Does it mean the SD card is defected ? > > > > Kind regards, > > > > > > > > _______________________________________________ > > USRP-users mailing list > > USRP-users@lists.ettus.com > > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > > > -- Wei Liu Researcher Ghent University - IBBT Department of Information Technology (INTEC) Internet Based Communication Networks and Services (IBCN) Zuiderpoort Office Park, Building C0 Gaston Crommenlaan 8 bus 201 9050 Gent, Belgium http://www.ibcn.intec.ugent.be/ Phone: +32 (0)9 33 14946 Fax: +32 (0)9 33 14899 E-mail: wei.liu@intec.UGent.be Route: http://www.ibcn.intec.ugent.be/route.html