search for: ext3_feature_incompat_filetype

...50 00 00 00 00 0b 00 00 00 80 00 00 00 04 00 00 00 000460 06 00 00 00 01 00 00 00 b9 d3 6c 59 2d cc 42 13 000470 91 84 d4 7b 60 d2 d9 50 00 00 00 00 00 00 00 00 000480 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 The incompat features are at superblock offset 0x60. So here it's 0x00000006 - EXT3_FEATURE_INCOMPAT_FILETYPE and EXT3_FEATURE_INCOMPAT_RECOVER. Somehow you seem to have set bit 16, which isn't defined. Not sure how to fix this without simply running a binary editor against /dev/hdd1 and clearing the byte at offset 0x462. -