为什么找不到文件系统

*** Warning - bad CRC or NAND, using default environment




##### EmbedSky BIOS for SKY2440/TQ2440 #####
Press Space key to Download Mode !

##### Boot for Nor Flash Main Menu#####
#####     EmbedSky USB download mode     #####

[1] Download u-boot or other bootloader to Nand Flash
[2] Download Eboot (eboot.nb0) to Nand Flash
[3] Download Linux Kernel (zImage.bin) to Nand Flash
[4] Download WinCE NK.bin to Nand Flash
[5] Download CRAMFS image to Nand Flash
[6] Download YAFFS image (root.bin) to Nand Flash
[7] Download Program (uCOS-II or TQ2440_Test) to SDRAM and Run it
[8] Boot the system
[9] Format the Nand Flash
[0] Set the boot parameters
[a] Download User Program (eg: uCOS-II or TQ2440_Test)
[b] Download LOGO Picture (.bin) to Nand  Flash
[l] Set LCD Parameters
[n] Enter TFTP download mode menu
[o] Download u-boot to Nor Flash
[r] Reboot u-boot
[t] Test Linux Image (zImage)
[q] quit from menu
Enter your selection: *** Warning - bad CRC or NAND, using default environment




##### EmbedSky BIOS for SKY2440/TQ2440 #####
Press Space key to Download Mode !
ReadTOC ERROR: INVALID_TOC Signature: 0xffffffff
Booting Linux ...
Copy linux kernel from 0x00200000 to 0x30008000, size = 0x00300000 ... Copy Kernel to SDRAM done,NOW, Booting Linux......
Uncompressing Linux............................................................................................................................ done, booting the kernel.
Linux version 2.6.30.4guo (root@linux) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-176) ) #21 Tue Jun 28 09:03:48 CST 2016
CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
CPU: VIVT data cache, VIVT instruction cache
Machine: SMDK2440
ATAG_INITRD is deprecated; please update your bootloader.
Memory policy: ECC disabled, Data cache writeback
CPU S3C2440A (id 0x32440001)
S3C24XX Clocks, (c) 2004 Simtec Electronics
S3C244X: core 400.000 MHz, memory 100.000 MHz, peripheral 50.000 MHz
CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256
Kernel command line: noinitrd root=/dev/mtdblock2 init=/linuxrc console=ttySAC0
NR_IRQS:85
irq: clearing pending ext status 00080000
irq: clearing subpending status 00000002
PID hash table entries: 256 (order: 8, 1024 bytes)
Console: colour dummy device 80x30
console [ttySAC0] enabled
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 64MB = 64MB total
Memory: 60640KB available (3440K code, 522K data, 236K init, 0K highmem)
SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Calibrating delay loop... 199.47 BogoMIPS (lpj=498688)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
net_namespace: 296 bytes
NET: Registered protocol family 16
S3C2440: Initialising architecture
S3C2440: IRQ Support
S3C24XX DMA Driver, (c) 2003-2004,2006 Simtec Electronics
DMA channel 0 at c4808000, irq 33
DMA channel 1 at c4808040, irq 34
DMA channel 2 at c4808080, irq 35
DMA channel 3 at c48080c0, irq 36
S3C244X: Clock Support, DVS off
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
s3c2440-i2c s3c2440-i2c: slave address 0x10
s3c2440-i2c s3c2440-i2c: bus frequency set to 97 KHz
s3c2440-i2c s3c2440-i2c: i2c-0: S3C I2C adapter
cfg80211: Calling CRDA to update world regulatory domain
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 2048 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
TCP reno registered
NET: Registered protocol family 1
audit: initializing netlink socket (disabled)
type=2000 audit(0.490:1): initialized
msgmni has been set to 118
alg: No test for stdrng (krng)
io scheduler noop registered (default)
Console: switching to colour frame buffer device 60x17
fb0: s3c2410fb frame buffer device
s3c2440-uart.0: tq2440_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2440
s3c2440-uart.1: tq2440_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2440
s3c2440-uart.2: tq2440_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2440
loop: module loaded
Driver 'sd' needs updating - please use bus_type methods
dm9000 Ethernet Driver, V1.31
S3C24XX NAND Driver, (c) 2004 Simtec Electronics
s3c2440-nand s3c2440-nand: Tacls=2, 20ns Twrph0=3 30ns, Twrph1=2 20ns
NAND device: Manufacturer ID: 0x01, Chip ID: 0xda (AMD NAND 256MiB 3,3V 8-bit)
Scanning device for bad blocks
Creating 3 MTD partitions on "NAND 256MiB 3,3V 8-bit":
0x000000000000-0x000000040000 : "EmbedSky_Board_uboot"
0x000000200000-0x000000500000 : "EmbedSky_Board_kernel"
0x000000500000-0x000010000000 : "EmbedSky_Board_yaffs2"
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
s3c2410-ohci s3c2410-ohci: S3C24XX OHCI
s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1
s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000
usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: S3C24XX OHCI
usb usb1: Manufacturer: Linux 2.6.30.4guo ohci_hcd
usb usb1: SerialNumber: s3c24xx
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usbcore: registered new interface driver usbserial
usbserial: USB Serial Driver core
USB Serial support registered for pl2303
usbcore: registered new interface driver pl2303
pl2303: Prolific PL2303 USB to serial adaptor driver
mice: PS/2 mouse device common for all mice
S3C24XX RTC, (c) 2004,2006 Simtec Electronics
s3c2410-rtc s3c2410-rtc: rtc disabled, re-enabling
s3c2410-rtc s3c2410-rtc: rtc core: registered s3c as rtc0
i2c /dev entries driver
Linux video capture interface: v2.00
zc0301: V4L2 driver for ZC0301[P] Image Processor and Control Chip v1:1.10
usbcore: registered new interface driver zc0301
gspca: main v2.5.0 registered
usbcore: registered new interface driver uvcvideo
USB Video Class driver (v0.1.0)
S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics
s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq enabled
usbcore: registered new interface driver usbhid
usbhid: v2.6:USB HID core driver
TCP cubic registered
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
lib80211: common routines for IEEE802.11 drivers
registered taskstats version 1
s3c2410-rtc s3c2410-rtc: setting system clock to 2016-06-28 19:17:21 UTC (1467141441)
uncorrectable error : <3>uncorrectable error : <3>end_request: I/O error, dev mtdblock2, sector 256
isofs_fill_super: bread failed, dev=mtdblock2, iso_blknum=64, block=128
List of all partitions:
1f00             256 mtdblock0 (driver?)
1f01            3072 mtdblock1 (driver?)
1f02          257024 mtdblock2 (driver?)
No filesystem could mount root, tried:  vfat iso9660
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)
Backtrace:
[<c004813c>] (dump_backtrace+0x0/0x10c) from [<c02c7134>] (dump_stack+0x18/0x1c)
r7:c38090e0 r6:c03cc660 r5:c3809000 r4:c381df40
[<c02c711c>] (dump_stack+0x0/0x1c) from [<c02c7184>] (panic+0x4c/0x124)
[<c02c7138>] (panic+0x0/0x124) from [<c0008e98>] (mount_block_root+0x1d8/0x234)
r3:c381df60 r2:00000020 r1:c381df40 r0:c034f9d8
[<c0008cc0>] (mount_block_root+0x0/0x234) from [<c0008fa4>] (mount_root+0xb0/0xf4)
[<c0008ef4>] (mount_root+0x0/0xf4) from [<c00090e0>] (prepare_namespace+0xf8/0x18c)
r7:c03cc044 r6:c001f83c r5:c001f83c r4:c001f84c
[<c0008fe8>] (prepare_namespace+0x0/0x18c) from [<c0008478>] (kernel_init+0xc8/0xf4)
r7:00000000 r6:c001e834 r5:c001e4b4 r4:c001e834
[<c00083b0>] (kernel_init+0x0/0xf4) from [<c0059970>] (do_exit+0x0/0x670)
r7:00000000 r6:00000000 r5:00000000 r4:00000000

我使用的不是天嵌科技制作的Linux2.6.30.4 ，是自己下载的Linux2.6.30.4内核。bootloader用的天嵌的。感觉应该是内核设置的问题，因为使用天嵌的zImage可以启动自己的文件系统。不知道问题出在哪了？

在启动的打印消息中NET: Registered protocol family 1下面米有

yaffs Jun 28 2016 13:51:49 Installing. 这句话

这是什么原因呀  

isofs_fill_super: bread failed, dev=mtdblock2, iso_blknum=64, block=128
这是什么意思呀

我的yaffs2也是自己下载的 会不是是yaffs2的问题？

应该是yaffs2的移植问题。
./patch-ker.sh c m //应该选m参数。
选错了的话需要把yaffs2文件夹删了重新打补丁。
不删除文件夹好像是不行的

不过文件系统还是不能启动
uncorrectable error : <3>uncorrectable error : <3>uncorrectable error : <3>uncorrectable error : <3>uncorrectable error : <3>uncorrectable error : <3>uncorrectable error : <3>uncorrectable error : <3>uncorrectable error : <3>uncorrectable error : <3>uncorrectable error : <3>uncorrectable error : <3>uncorrectable error : <3>uncorrectable error : <3>uncorrectable error : <3>uncorrectable error : <0>Kernel panic - not syncing: No init found.  Try passing init= option to kernel.
[<c00492b8>] (unwind_backtrace+0x0/0xec) from [<c0297714>] (dump_stack+0x18/0x1c)
[<c0297714>] (dump_stack+0x18/0x1c) from [<c0297764>] (panic+0x4c/0x12c)
[<c0297764>] (panic+0x4c/0x12c) from [<c00424f0>] (init_post+0xec/0x178)
[<c00424f0>] (init_post+0xec/0x178) from [<c000847c>] (kernel_init+0xcc/0xf4)
[<c000847c>] (kernel_init+0xcc/0xf4) from [<c005ae70>] (do_exit+0x0/0x638)

chip->ecc.code=NAND_ECC_NONE;忘了改了，改好就不显示<3>uncorrectable error 了。