I'm trying to write an sdcard image created with a completely stock Yocto build (which completed successfully). Following the instructions (including the sync at the end), I dd the .sdcard image onto the SD card. Unfortunately, when I try to boot (the system does show signs of life and does start the boot process), I see all sorts of warnings on the serial console that point to a corrupt filesystem, and things end in a hang or a kernel panic.
I'm running Ubuntu 14.04LTS (I've tried 12.04 as well) under VirtualBox 4.3.20 running on a Windows 7 box.
If anyone's had success with a similar config, any hints on what may be wrong? Any recommendations for particular SD cards or SD card readers that you've had success with?