求助：用mount 挂载IDE设备的设备文件，老出现错误

Question

用mount 挂载IDE设备的设备文件，老是出现下面的错误
yaffs: passed flags ""
yaffs: Attempting MTD mount on 254.1, "hda"
yaffs: dev is 266338305 name is "hda"
yaffs: passed flags ""
yaffs: Attempting MTD mount on 254.1, "cfcarda"
mount: mounting /dev/hda on /tmp failed: Invalid argument

用fdisk进行分区以后，退出则出现这种情况：
fdisk: WARNING: rereading partition table failed, kernel still uses old table: Invalid argument

谁能告诉我这是怎么回事啊？