Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,3)

Hi there.

I'm having trouble getting started with my LeopardBoard DM355.
I get the following error once I have flashed the leopardboard:

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,3)

I have attached what thought to be relevant.
Has anyone encountered this before? Any ideas of where I what went wrong?

*********************************************************************
            DM355 LEOPARD:
*********************************************************************
DM35x
 initialization passed!
Customized by RidgeRun
TI UBL Version: 1.50
Booting Catalog Boot Loader
BootMode = NAND
Starting NAND Copy...
Valid magicnum, 0xA1ACED66, found in block 0x00000002.
   DONE
Jumping to entry point at 0x81080000.


U-Boot customized by RidgeRun
U-Boot 2009.11 (May 13 2011 - 19:59:55)

Cores: ARM 216 MHz
DDR:   171 MHz
I2C:   ready
DRAM:  128 MB
NAND:  256 MiB
Bad block table found at page 131008, version 0x01
Bad block table found at page 130944, version 0x01
nand_read_bbt: Bad block at 0x000000020000
nand_read_bbt: Bad block at 0x000000040000
nand_read_bbt: Bad block at 0x000000060000
nand_read_bbt: Bad block at 0x000000080000
nand_read_bbt: Bad block at 0x0000000a0000
nand_read_bbt: Bad block at 0x0000000c0000
Net:   dm9000
Hit any key to stop autoboot:  0

Loading from nand0, offset 0xc0000
Skipping bad block 0x000c0000
   Image Name:   "RR Linux Kernel"
   Created:      2011-05-16  12:55:22 UTC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    3376616 Bytes =  3.2 MB
   Load Address: 80008000
   Entry Point:  80008000
Skipping bad block 0x000c0000
Automatic boot of image at addr 0x80700000 ...
## Booting kernel from Legacy Image at 80700000 ...
   Image Name:   "RR Linux Kernel"
   Created:      2011-05-16  12:55:22 UTC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    3376616 Bytes =  3.2 MB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

[    0.000000] Linux version 2.6.29-ridgerun-davinci1 (justin@ubuntu) (gcc version 4.2.4) #1 PREEMPT Fri May 13 19:31:29 SAST 2011
[    0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] Machine: DaVinci DM355 leopard
[    0.000000] Memory policy: ECC disabled, Data cache writeback
[    0.000000] DaVinci DM0355 variant 0x0
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 29464
[    0.000000] Kernel command line: console=ttyS0,115200n8 video=davincifb:osd1=0x0x8 root=/dev/mtdblock3 rw mem=116M rootfstype=jffs2 mtdparts=davinci_nand.0:640k(UBOOT),128k(UBOOT_ENV),3840k(KERNEL),21888k(FS)
[    0.000000] PID hash table entries: 512 (order: 9, 2048 bytes)
[42949372.960000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
[42949372.960000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
[42949372.980000] Memory: 116MB = 116MB total
[42949372.980000] Memory: 114076KB available (3056K code, 208K data, 116K init)
[42949372.980000] Calibrating delay loop... 107.72 BogoMIPS (lpj=538624)
[42949373.210000] Mount-cache hash table entries: 512
[42949373.210000] CPU: Testing write buffer coherency: ok
[42949373.210000] net_namespace: 520 bytes
[42949373.220000] NET: Registered protocol family 16
[42949373.220000] MUX: initialized INT_EDMA_CC
[42949373.220000] MUX: initialized VIN_CINL_EN
[42949373.250000] DaVinci: 104 gpio irqs
[42949373.330000] bio: create slab <bio-0> at 0
[42949373.340000] vpss vpss: dm355_vpss vpss probed
[42949373.340000] vpss vpss: dm355_vpss vpss probe success
[42949373.340000] ch0 default output "COMPOSITE", mode "NTSC"
[42949373.340000] VPBE Encoder Initialized
[42949373.350000] SCSI subsystem initialized
[42949373.350000] usbcore: registered new interface driver usbfs
[42949373.350000] usbcore: registered new interface driver hub
[42949373.360000] usbcore: registered new device driver usb
[42949373.370000] Avnetlcd encoder initialized
[42949373.380000] musb_hdrc: version 6.0, pio, host, debug=0
[42949373.400000] musb_hdrc: USB Host mode controller at fec64000 using PIO, IRQ 12
[42949373.400000] musb_hdrc musb_hdrc: MUSB HDRC host driver
[42949373.400000] musb_hdrc musb_hdrc: new USB bus registered, assigned bus number 1
[42949373.400000] usb usb1: configuration #1 chosen from 1 choice
[42949373.400000] hub 1-0:1.0: USB hub found
[42949373.400000] hub 1-0:1.0: 1 port detected
[42949373.410000] NET: Registered protocol family 2
[42949373.410000] IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
[42949373.410000] TCP established hash table entries: 4096 (order: 3, 32768 bytes)
[42949373.410000] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
[42949373.410000] TCP: Hash tables configured (established 4096 bind 4096)
[42949373.410000] TCP reno registered
[42949373.410000] NET: Registered protocol family 1
[42949373.420000] JFFS2 version 2.2. (NAND) (SUMMARY)  �© 2001-2006 Red Hat, Inc.
[42949373.430000] msgmni has been set to 223
[42949373.430000] io scheduler noop registered (default)
[42949373.440000] davincifb davincifb.0: dm_osd0_fb: 720x480x16@0,0 with framebuffer size 1350KB
[42949373.450000] davincifb davincifb.0: dm_vid0_fb: 0x0x16@0,0 with framebuffer size 675KB
[42949373.460000] davincifb davincifb.0: dm_osd1_fb: 0x0x8@0,0 with framebuffer size 1350KB
[42949373.470000] davincifb davincifb.0: dm_vid1_fb: 0x0x16@0,0 with framebuffer size 675KB
[42949373.480000] Serial: 8250/16550 driver, 3 ports, IRQ sharing disabled
[42949373.480000] serial8250.0: ttyS0 at MMIO 0x1c20000 (irq = 40) is a 16550A
[42949373.480000] console [ttyS0] enabled
[42949373.810000] brd: module loaded
[42949373.840000] loop: module loaded
[42949373.840000] dm9000 Ethernet Driver, V1.31
[42949373.970000] Unable to read MAC address: Generating random value ...
[42949373.970000] The random generated MAC address: 56:53:ba:ae:bf:c6 will be assigned to your device
[42949373.980000] eth0 (dm9000): not using net_device_ops yet
[42949373.990000] eth0: dm9000e at c785c000,c7860016 IRQ 73 MAC: 56:53:ba:ae:bf:c6 (chip)
[42949374.000000] Linux video capture interface: v2.00
[42949374.010000] vpfe-capture vpfe-capture: video device registered
[42949374.010000] vpfe-capture vpfe-capture: v4l2 int master registered
[42949374.020000] vpfe_capture: init successful
[42949374.030000] Trying to register davinci display video device.
[42949374.030000] layer=c65f7200,layer->video_dev=c65f7364
[42949374.040000] Trying to register davinci display video device.
[42949374.050000] layer=c65f7000,layer->video_dev=c65f7164
[42949374.050000] davinci_init:DaVinci V4L2 Display Driver V1.0 loaded
[42949374.060000] vpfe-capture vpfe-capture: register slave mt9v113
[42949374.070000] mt9v113 1-003c: chip id mismatch read 0x0, expecting 0x2280
[42949374.070000] mt9v113 1-003c: Unable to detect decoder
[42949374.080000] mt9v113 1-003c: Registered to v4l2 master vpfe-capture!!
[42949374.090000] Driver 'sd' needs updating - please use bus_type methods
[42949374.100000] NAND device: Manufacturer ID: 0x2c, Chip ID: 0xda (Micron NAND 256MiB 3,3V 8-bit)
[42949374.110000] 2 NAND chips detected
[42949374.110000] Scanning device for bad blocks
[42949374.120000] Bad eraseblock 3 at 0x000000060000
[42949374.120000] Bad eraseblock 4 at 0x000000080000
[42949374.130000] Bad eraseblock 5 at 0x0000000a0000
[42949374.130000] Bad eraseblock 6 at 0x0000000c0000
[42949374.220000] Bad eraseblock 2051 at 0x000010060000
[42949374.220000] Bad eraseblock 2052 at 0x000010080000
[42949374.230000] Bad eraseblock 2053 at 0x0000100a0000
[42949374.230000] Bad eraseblock 2054 at 0x0000100c0000
[42949374.320000] 4 cmdlinepart partitions found on MTD device davinci_nand.0
[42949374.330000] Creating 4 MTD partitions on "davinci_nand.0":
[42949374.340000] 0x000000000000-0x0000000a0000 : "UBOOT"
[42949374.350000] 0x0000000a0000-0x0000000c0000 : "UBOOT_ENV"
[42949374.360000] 0x0000000c0000-0x000000480000 : "KERNEL"
[42949374.360000] 0x000000480000-0x0000019e0000 : "FS"
[42949374.370000] davinci_nand davinci_nand.0: controller rev. 2.3
[42949374.380000] Initializing USB Mass Storage driver...
[42949374.390000] usbcore: registered new interface driver usb-storage
[42949374.390000] USB Mass Storage support registered.
[42949374.400000] i2c /dev entries driver
[42949374.410000] watchdog watchdog: heartbeat 60 sec
[42949374.420000] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[42949374.430000] davinci_mmc davinci_mmc.1: Using DMA, 4-bit mode
[42949374.450000] Advanced Linux Sound Architecture Driver Version 1.0.18a.
[42949374.460000] No device for DAI tlv320aic3x
[42949374.470000] No device for DAI davinci-i2s
[42949374.470000] AIC3X Audio Codec 0.2
[42949374.480000] asoc: tlv320aic3x <-> davinci-i2s mapping ok
[42949374.510000] ALSA device list:
[42949374.510000]   #0: Leopard Board (tlv320aic3x)
[42949374.520000] TCP cubic registered
[42949374.520000] NET: Registered protocol family 17
[42949374.530000] RPC: Registered udp transport module.
[42949374.530000] RPC: Registered tcp transport module.
[42949374.540000] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[42949387.490000] Cowardly refusing to erase blocks on filesystem with no valid JFFS2 nodes
[42949387.500000] empty_blocks 0, bad_blocks 0, c->nr_blocks 171
[42949387.500000] VFS: Cannot open root device "mtdblock3" or unknown-block(31,3)
[42949387.510000] Please append a correct "root=" boot option; here are the available partitions:
[42949387.520000] 1f00             640 mtdblock0 (driver?)
[42949387.520000] 1f01             128 mtdblock1 (driver?)
[42949387.530000] 1f02            3840 mtdblock2 (driver?)
[42949387.530000] 1f03           21888 mtdblock3 (driver?)
[42949387.540000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,3)

***************************************************************************






***************************************************************
            IFCONFIG
***************************************************************
justin@ubuntu:~$ ifconfig


eth0      Link encap:Ethernet  HWaddr 48:5b:39:b7:84:02 
          inet addr:192.168.1.50  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::4a5b:39ff:feb7:974f/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:3693 (3.6 KB)
          Interrupt:29 Base address:0x2000

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:132 errors:0 dropped:0 overruns:0 frame:0
          TX packets:132 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:10660 (10.6 KB)  TX bytes:10660 (10.6 KB)
***************************************************************







***************************************************************
            PRINTENV
***************************************************************

DM355 LEOPARD # printenv
bootdelay=3
baudrate=115200
ethaddr="00:0e:99:00:05:2e"
bootfile="uImage"
ethact=dm9000
mtdparts=mtdparts=davinci_nand.0:640k(UBOOT),128k(UBOOT_ENV),3840k(KERNEL),21888k(FS)
mtdids=nand0=davinci_nand.0
filesize=338628
kernelloadaddr=0x82000000
kernelsaveaddr=0xC0000
kerneloffset=0xC0000
ksize=0x340000
kernelmd5sum=23c2767fb1fc9a9fbd2d732674843890
ipaddr=192.168.1.100
partition=nand0,0
mtddevnum=0
mtddevname=UBOOT
fssize=0x15537D4
fssaveaddr=0x480000
fsoffset=0x480000
bootargs=console=ttyS0,115200n8 video=davincifb:osd1=0x0x8 root=/dev/mtdblock3 rw mem=116M rootfstype=jffs2 mtdparts=davinci_nand.0:640k(UBOOT),128k(UBOOT_ENV),3840k(KERNEL),21888k(FS)
serverip=192.168.1.50
bootcmd=nboot KERNEL
autostart=yes
stdin=serial
stdout=serial
stderr=serial
ver=U-Boot 2009.11 (May 13 2011 - 19:59:55)

Environment size: 799/131068 bytes
*******************************************************






***************************************************************
         MAKE CONFIG
***************************************************************

Make Config -> Architecture configurations:

     (192.168.1.50) Linux network IP address (eth0)                   
     (255.255.255.0) Linux network mask address for interface (eth0)  
     (48:5b:39:b7:84:02)Linux network ethernet address (eth0)


Make Config -> Installer Configuration:

 
      (0x82000000) RAM address to load components                                                  
       Communication method with the target board (Serial port)  --->                          
       (/dev/ttyS0) Serial port for target communication                                           
        Protocol for transfering images to the target (TFTP)  --->                              
      Flashing method for the bootloader (U-boot Commands)  --->                               
         *** Network options for installation ***                                                 
      (eth0) Interface on your host machine connected to your target hardware                      
      U-boot IP address (Static IP address)  --->                                               
      (192.168.1.100) Static IP                                                                   
     (255.255.255.0) Static mask                                                                  
      *** NAND Flash memory map (Partitions sizes are given in blocks number) ***               
     (5) Uboot partition size                                                                      
     (1) Uboot environment partition size                                                          
     (30) Minimum kernel partition size                                                             
     (160) Mininum file system partition size                                                        
      *** MTD Integration options ***                                                            
    [*] Configure Kernel MTD partitions with U-boot information                                     
   (davinci_nand.0) MTD device name                                                               
      MTD extra partitions  
      
********************************************************



********************************************************
        WHEN I CONNCT TO WIFI
********************************************************
justin@ubuntu:~$ ifconfig
eth0      Link encap:Ethernet  HWaddr 48:5b:39:b7:84:02
          inet6 addr: fe80::4a5b:39ff:feb7:974f/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:57 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:11856 (11.8 KB)
          Interrupt:29 Base address:0x2000

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:180 errors:0 dropped:0 overruns:0 frame:0
          TX packets:180 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:14212 (14.2 KB)  TX bytes:14212 (14.2 KB)

wlan0     Link encap:Ethernet  HWaddr 00:0c:f6:85:d9:01 
          inet addr:192.168.1.103  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:f6ff:fe85:d901/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7250 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2969 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3766299 (3.7 MB)  TX bytes:657390 (657.3 KB)