When I try to backup my Bionic through Bionic Bootstrap Recovery, it says that SD card has x amount of space free, but when trying to back up data it says "no /sdcard/.android_secure found. skipping backup of applications on external storage. no sd-ext found. skipping backup of sd-ext" it then generates md5 sum and says "backup complete!" is it safe for me to flash a new ROM even though it skipped two steps?