That did it. The directions didn't indicate that the sd card had to be preformatted.

I'm trying to set up my Omega2+ to boot from an SD Card. I've tried with 2 cards now (8gb and 16gb) and I'm getting the same errors. As follows:
root@Omega-4A2F:/# [ 591.979724] mmc0: new high speed SDHC card at address aaaa
[ 591.987024] mmcblk0: mmc0:aaaa SE16G 14.8 GiB
[ 593.653453] mmcblk0: error -145 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00
[ 593.743311] mmc0: tried to reset card
[ 595.407399] mmcblk0: error -145 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00
[ 595.417047] mmcblk0: retrying using single block read
[ 597.082536] mmcblk0: error -145 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0
[ 597.092014] blk_update_request: I/O error, dev mmcblk0, sector 0
[ 598.758455] mmcblk0: error -145 transferring data, sector 1, nr 7, cmd response 0x900, card status 0x0
[ 598.767961] blk_update_request: I/O error, dev mmcblk0, sector 1
[ 600.434422] mmcblk0: error -145 transferring data, sector 2, nr 6, cmd response 0x900, card status 0x0
[ 600.443900] blk_update_request: I/O error, dev mmcblk0, sector 2
[ 602.110362] mmcblk0: error -145 transferring data, sector 3, nr 5, cmd response 0x900, card status 0x0
[ 602.119892] blk_update_request: I/O error, dev mmcblk0, sector 3
[ 603.786364] msdc-1 -> cmd<13> card<0> power<2> <- msdc_ops_request() : L<2120> PID<mmcqd/0><0x6f2>
[ 603.795491] mmcblk0: error -159 sending status command, retrying
[ 603.801611] msdc-1 -> cmd<13> card<0> power<2> <- msdc_ops_request() : L<2120> PID<mmcqd/0><0x6f2>
[ 603.810713] mmcblk0: error -159 sending status command, retrying
[ 603.816811] msdc-1 -> cmd<13> card<0> power<2> <- msdc_ops_request() : L<2120> PID<mmcqd/0><0x6f2>
[ 603.825914] mmcblk0: error -159 sending status command, aborting

This continues on and on. I've tried reformating the cards in windows to no success. Any suggestions?