# kpartx -l /dev/mmcblk0
mmcblk0p1 : 0 50331648 /dev/mmcblk0 2048
mmcblk0p2 : 0 12000256 /dev/mmcblk0 50333696

# partprobe
A bug has been detected in GNU Parted.  Refer to the web site of parted 
http://www.gnu.org/software/parted/parted.html for more information of 
what could be useful for bug submitting!  Please email a bug report to 
bug-parted@gnu.org containing at least the version (2.4) and the 
following message:  Unable to determine the size and length of 
/dev/mmcblk0_part2.
#