Recognizing hard disk

Hi all,

trying to read/write from a hard disk, with CycloneII Nios Kit and Nios II uClinux when I try to mount the hard disk I get the error:

mount: /dev/hda is not a valid block device

The mount command was: mount -n -t vfat /dev/hda /mnt/ide0

and the same for /dev/hda1

If someone can give some hints, the background is:

- IDE hard disk connected to the CycloneII board with IDE cable.

- True IDE PIO mode 0 HW interface to the hard disk, correctly working in fact at linux boot I get the messages:

hda: IBM-DTLA-307030, ATA DISK drive

ide0 at 0x81000040-0x81000047,0x81000078 on irq 7

hda: max request size: 128KiB

hda: 60036480 sectors (30738 MB) w/1916KiB Cache, CHS=59560/16/63

hda: hda1 hda2 < hda5 >

To be honest cylinders are 16383, but the disk model and all the other parameters are correct (correctly read from the disk).

Also the partitions seems recognized correctly: one FAT16 partition and one NTFS partition plus extended part, all created in the hard disk by Windows Pc.

- Nios II uClinux kernel configured with defaults it comes with, so also ATA/ATAPI/MFM/RLL support.

- uClinux filesystem generated with from Nios II IDE (using New -> Linux Filesystem project), with "Install minimal" packages plus fdisk and some others.

-# cat /proc/devices gives:

Character devices:

1 mem

2 pty

3 ttyp

5 /dev/tty

5 /dev/console

5 /dev/ptmx

10 misc

90 mtd

128 ptm

136 pts

232 ttyJ

Block devices:

1 ramdisk

3 ide0

31 mtdblock1

- Don&#39;t know about the format of /dev files, but /dev/hda and /dev/hda1 files are present...

- Instead, /etc/fstab file is not present in my uClinux filesystem...

From the messages I think the hard disk is recognized by the system and installed correctly, also running fdisk from uClinux shows me the disk partitions correctly, I don&#39;t know why the disk is not seen as a block device and the mount command fails...

Thanks in advance