linux系统之yaffs2文件系统挂载问题2

上接我发的帖子：linux系统之yaffs2文件系统挂载问题(http://www.armbbs.net/forum.php?mod=viewthread&tid=14924)
我做完linux内核移植后，我再构建了文件系统并下载到开发板上了，但是总是成功不了，做了很多遍，启动时串口打印如下：
Start 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 2.6.30.4-EmbedSky (root@localhost.localdomain) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-176) ) #6 Mon Jan 14 01:57:57 CST 2013
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 00000003
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: 60700KB available (3632K code, 394K data, 116K 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
JFFS2 version 2.2. (NAND) (SUMMARY)  漏 2001-2006 Red Hat, Inc.
ROMFS MTD (C) 2007 Red Hat, Inc.
yaffs Jan 13 2013 08:37:42 Installing.
msgmni has been set to 118
alg: No test for stdrng (krng)
io scheduler noop registered (default)
Console: switching to colour frame buffer device 30x40
fb0: s3c2410fb frame buffer device
lp: driver loaded but no devices found
ppdev: user-space parallel port driver
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
s3c2440-uart.0: TQ2440-BOBO_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2440
s3c2440-uart.1: TQ2440-BOBO_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2440
s3c2440-uart.2: TQ2440-BOBO_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2440
brd: module loaded
loop: module loaded
Uniform Multi-Platform E-IDE driver
ide-gd driver 1.18
ide-cd driver 5.00
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: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit)
Scanning device for bad blocks
Bad eraseblock 149 at 0x0000012a0000
Bad eraseblock 320 at 0x000002800000
Bad eraseblock 321 at 0x000002820000
Bad eraseblock 382 at 0x000002fc0000
Bad eraseblock 640 at 0x000005000000
Bad eraseblock 665 at 0x000005320000
Bad eraseblock 1235 at 0x000009a60000
Creating 3 MTD partitions on "NAND 256MiB 3,3V 8-bit":
0x000000000000-0x000000100000 : "boot"
0x000000120000-0x000000520000 : "kernel"
0x000000520000-0x000010000000 : "yaffs2"
usbmon: debugfs is not available
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: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
usbcore: registered new interface driver libusual
usbcore: registered new interface driver usbserial
USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial Driver core
USB Serial support registered for FTDI USB Serial Device
usbcore: registered new interface driver ftdi_sio
ftdi_sio: v1.4.3:USB FTDI Serial Converters Driver
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 Watchdog Timer, (c) 2004 Simtec Electronics
s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq enabled
Advanced Linux Sound Architecture Driver Version 1.0.20.
ALSA device list:
  No soundcards found.
TCP cubic registered
NET: Registered protocol family 17
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
lib80211: common routines for IEEE802.11 drivers
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
end_request: I/O error, dev mtdblock2, sector 0
Buffer I/O error on device mtdblock2, logical block 0
end_request: I/O error, dev mtdblock2, sector 0
Buffer I/O error on device mtdblock2, logical block 0
end_request: I/O error, dev mtdblock2, sector 8
Buffer I/O error on device mtdblock2, logical block 1
end_request: I/O error, dev mtdblock2, sector 8
Buffer I/O error on device mtdblock2, logical block 1
end_request: I/O error, dev mtdblock2, sector 16
Buffer I/O error on device mtdblock2, logical block 2
end_request: I/O error, dev mtdblock2, sector 16
Buffer I/O error on device mtdblock2, logical block 2
end_request: I/O error, dev mtdblock2, sector 24
Buffer I/O error on device mtdblock2, logical block 3
end_request: I/O error, dev mtdblock2, sector 24
Buffer I/O error on device mtdblock2, logical block 3
end_request: I/O error, dev mtdblock2, sector 0
FAT: unable to read boot sector
VFS: Cannot open root device "mtdblock2" or unknown-block(31,2)
Please append a correct "root=" boot option; here are the available partitions:
1f00            1024 mtdblock0 (driver?)
1f01            4096 mtdblock1 (driver?)
1f02          256896 mtdblock2 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)
Backtrace:
[<c0029fd4>] (dump_backtrace+0x0/0x10c) from [<c02c74a8>] (dump_stack+0x18/0x1c)
r7:c380a0f6 r6:c03d9f80 r5:c380a000 r4:c381df40
[<c02c7490>] (dump_stack+0x0/0x1c) from [<c02c74f8>] (panic+0x4c/0x124)
[<c02c74ac>] (panic+0x0/0x124) from [<c0008f34>] (mount_block_root+0x178/0x234)
r3:00000000 r2:c382bcec r1:c381df40 r0:c0357978
[<c0008dbc>] (mount_block_root+0x0/0x234) from [<c00090a0>] (mount_root+0xb0/0xf4)
[<c0008ff0>] (mount_root+0x0/0xf4) from [<c00091ec>] (prepare_namespace+0x108/0x1c4)
r7:c002183c r6:c03d9964 r5:c002183c r4:c002184c
[<c00090e4>] (prepare_namespace+0x0/0x1c4) from [<c0008478>] (kernel_init+0xc8/0xf4)
r7:00000000 r6:c00200e4 r5:c001fd88 r4:c00200e4
[<c00083b0>] (kernel_init+0x0/0xf4) from [<c003af3c>] (do_exit+0x0/0x620)
r7:00000000 r6:00000000 r5:00000000 r4:00000000

这是怎么回事？？各位帮帮忙，谢谢！！

问题原因在你的yaffs文件系统的分区和uboot中的分区不同，导致yaffs烧写出错了。
根据你给的串口信息推论得到的。

亚瑟王 发表于 2013-1-14 17:42
问题原因在你的yaffs文件系统的分区和uboot中的分区不同，导致yaffs烧写出错了。
根据你给的串口信息推论得 ...

是要修改nand分区吗？

亚瑟王 发表于 2013-1-14 17:42
问题原因在你的yaffs文件系统的分区和uboot中的分区不同，导致yaffs烧写出错了。
根据你给的串口信息推论得 ...

成功了！成功了！非常感谢！！！

wangshenbo 发表于 2013-1-14 18:51
是要修改nand分区吗？

恩，按照天嵌科技的内核中的分区修改。

亚瑟王 发表于 2013-1-14 17:42
问题原因在你的yaffs文件系统的分区和uboot中的分区不同，导致yaffs烧写出错了。
根据你给的串口信息推论得 ...

请问你从哪几条看出来的啊?       我刚开始学linux

wangshenbo 发表于 2013-1-14 19:26
请问你从哪几条看出来的啊?       我刚开始学linux

0x000000120000-0x000000520000 : "kernel"
0x000000520000-0x000010000000 : "yaffs2"
Copy linux kernel from 0x00200000 to 0x30008000, size = 0x00300000 ... Copy Kernel to
然后自己计算一下，看是否匹配。