> Does the embedded kernel have ext2 fs support turned built-in? Yes, EXT2, VFAT and NLS (for vfat) are built-in. > Or maybe you can have it automagically load using the -t option. Explicit -t ext2 does not help. I can determine that EXT2 partition is mounted as VFAT because there is note during mounting that UTF8 is not recommended NLS for FAT.