On Fri, Nov 21, 2014 at 9:11 AM, Robert Nelson <robertcnel...@gmail.com> wrote: > Humm... So i picked up an SDXC card a few weeks back, but this > conversation reminded me i should just test it to prove it for once an > and all... Well... > > > debian@beaglebone:~$ uname -r > 3.8.13-bone67 > debian@beaglebone:~$ dmesg > [ 98.159775] mmc0: host does not support reading read-only switch. > assuming write-enable. > [ 98.161943] mmc0: new high speed SDXC card at address aaaa > [ 98.165780] mmcblk1: mmc0:aaaa SU64G 59.4 GiB > [ 98.169334] mmcblk1: p1 > [ 172.261473] mmcblk1: p1 > [ 277.923870] EXT4-fs (mmcblk1p1): mounted filesystem with ordered > data mode. Opts: (null) > > (mmcblk1 is SDXC) > debian@beaglebone:~$ sudo hdparm -tT /dev/mmcblk1 > > /dev/mmcblk1: > Timing cached reads: 448 MB in 2.00 seconds = 224.03 MB/sec > Timing buffered disk reads: 58 MB in 3.02 seconds = 19.23 MB/sec > > (mmcblk0 is eMMC which i booted off of..) > debian@beaglebone:~$ sudo hdparm -tT /dev/mmcblk0 > > /dev/mmcblk0: > Timing cached reads: 424 MB in 2.01 seconds = 211.39 MB/sec > Timing buffered disk reads: 66 MB in 3.05 seconds = 21.66 MB/sec > > Well let's see if i can boot off the SDXC card..
Zero'ed out the eMMC: debian@beaglebone:~$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT mmcblk1boot0 179:16 0 1M 1 disk mmcblk1boot1 179:24 0 1M 1 disk mmcblk0 179:0 0 59.5G 0 disk └─mmcblk0p1 179:1 0 59.5G 0 part / mmcblk1 179:8 0 1.8G 0 disk debian@beaglebone:~$ dmesg | grep mmcblk0 [ 0.870861] mmcblk0: mmc0:aaaa SU64G 59.4 GiB [ 0.872373] mmcblk0: p1 [ 2.624594] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null) [ 7.353348] EXT4-fs (mmcblk0p1): re-mounted. Opts: (null) [ 8.346567] EXT4-fs (mmcblk0p1): re-mounted. Opts: errors=remount-ro [ 25.319932] lun0: LUN: removable file: /dev/mmcblk0p1 This is a: SanDisk Ultra 64GB micro SDXC Regards, -- Robert Nelson http://www.rcn-ee.com/ -- 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.