求助:为什么内核由2.6`换回2.4后不能挂载文件系统了?

andante

大家来看一下是什么原因造成2.4内核挂不上文件系统了?具体问题在后
串口打印信息:
(1) 2.6的
VIVI version 0.1.4 ([email protected]) (gcc version 2.95.3 20010315 (r6MMU table base address = 0x33DFC000
Succeed memory mapping.
NAND device: Manufacture ID: 0xec, Chip ID: 0x76 (Samsung K9D1208V0M)
Found saved vivi parameters.
Press Return to start the LINUX now, any other key for vivi
Copy linux kernel from 0x00030000 to 0x30008000, size = 0x001c0000 ... done
zImage magic = 0x016f2818
Setup linux parameters at 0x30000100
linux command line is: "noinitrd root=/dev/mtdblock/3 init=/linuxrc console=ttySAC0"
MACH_TYPE = 193
NOW, Booting Linux......
Uncompressing Linux............................................................... .
Linux version 2.6.14 ([email protected]) (gcc version 3.4.1) #5 Sat Aug 196
CPU: ARM920Tid(wb) [41129200] revision 0 (ARMv4T)
Machine: SMDK2410
ATAG_INITRD is deprecated; please update your bootloader.
Memory policy: ECC disabled, Data cache writeback
CPU S3C2410A (id 0x32410002)
S3C2410: core 200.000 MHz, memory 100.000 MHz, peripheral 50.000 MHz
S3C2410 Clocks, (c) 2004 Simtec Electronics
CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on
CPU0: D VIVT write-back cache
CPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
CPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
Built 1 zonelists
Kernel command line: noinitrd root=/dev/mtdblock/3 init=/linuxrc console=ttySAC0
irq: clearing subpending status 00000007
irq: clearing subpending status 00000002
PID hash table entries: 512 (order: 9, 8192 bytes)
timer tcon=00000000, tcnt a2c1, tcfg 00000200,00000000, usec 00001eb8
Console: colour dummy device 80x30
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 64MB = 64MB total
Memory: 62848KB available (1597K code, 317K data, 92K init)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
softlockup thread 0 started up.
NET: Registered protocol family 16
S3C2410: Initialising architecture
devfs: 2004-01-31 Richard Gooch ([email protected])
devfs: devfs_debug: 0x0
devfs: boot_options: 0x1
yaffs Aug 19 2006 14:12:21 Installing.
Console: switching to colour frame buffer device 80x25
fb0: Virtual frame buffer device, using 1024K of video memory
s3c2410_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2410
s3c2410_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2410
s3c2410_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2410
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
S3C24XX NAND Driver, (c) 2004 Simtec Electronics
s3c2410-nand: mapped registers at c4980000
s3c2410-nand: timing: Tacls 10ns, Twrph0 40ns, Twrph1 10ns
NAND device: Manufacturer ID: 0xec, Chip ID: 0x76 (Samsung NAND 64MiB 3,3V 8-bit)
NAND_ECC_NONE selected by board driver. This is not recommended !!
Scanning device for bad blocks
Creating 5 MTD partitions on "NAND 64MiB 3,3V 8-bit":
0x00000000-0x00020000 : "loader"
0x00020000-0x00030000 : "param"
0x00030000-0x001f0000 : "kernel"
0x00200000-0x00400000 : "root"
0x00400000-0x03ef8000 : "user"
mice: PS/2 mouse device common for all mice
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 2, 16384 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
TCP bic registered
NET: Registered protocol family 1
Root-NFS: No NFS server available, giving up.
VFS: Unable to mount root fs via NFS, trying floppy.
Reading data from NAND FLASH without ECC is not recommended
VFS: Mounted root (cramfs filesystem) readonly.
Mounted devfs on /dev
Freeing init memory: 92K
Failed to execute /linuxrc. Attempting defaults...
init started: BusyBox v0.60.5 (2003.09.05-09:25+0000) multi-call binary
Reading data from NAND FLASH without ECC is not recommended
yaffs: dev is 32505856 name is "mtdblock0"
yaffs: Attempting MTD mount on 31.0, "mtdblock0"
yaffs: NAND geometry problems: chunk size 512, type is yaffs
mount: Mounting /dev/mtdblock/0 on /opt failed: Invalid argument

Please press Enter to activate this console.


BusyBox v0.60.5 (2003.09.05-09:25+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

Reading data from NAND FLASH without ECC is not recommended
[root@FriendlyARM /]#


##################################################################
##################################################################
##################################################################
(2) 2.4 的

VIVI version 0.1.4 ([email protected]) (gcc version 2.95.3 20010315 (r6MMU table base address = 0x33DFC000
Succeed memory mapping.
NAND device: Manufacture ID: 0xec, Chip ID: 0x76 (Samsung K9D1208V0M)
Found saved vivi parameters.
Press Return to start the LINUX now, any other key for vivi
Copy linux kernel from 0x00030000 to 0x30008000, size = 0x001c0000 ... done
zImage magic = 0x016f2818
Setup linux parameters at 0x30000100
linux command line is: "noinitrd root=/dev/bon/2 init=/linuxrc console=ttyS0"
MACH_TYPE = 193
NOW, Booting Linux......
Uncompressing Linux.............................................................
Linux version 2.4.18-rmk7-pxa1 ([email protected]) (gcc version 2.95.34
CPU: ARM/CIRRUS Arm920Tsid(wb) revision 0
Machine: Samsung-SMDK2410
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: noinitrd root=/dev/bon/2 init=/linuxrc console=ttyS0
DEBUG: timer count 15626
Console: colour dummy device 80x30
Calibrating delay loop... 99.94 BogoMIPS
Memory: 64MB = 64MB total
Memory: 62364KB available (1686K code, 343K data, 72K init)
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
CPU clock = 200.000 Mhz, HCLK = 100.000 Mhz, PCLK = 50.000 Mhz
Initializing S3C2410 buffer pool for DMA workaround
usbctl: zombie --> [reset] --> default. Device in default state.
S3C2410 USB Controller Core Initialized
USB Function Character Driver Interface - 0.5, (C) 2001, Extenex Corp.
usbctl: Opened for usb-char
usbctl: Started for usb-char
Starting kswapd
devfs: v1.10 (20020120) Richard Gooch ([email protected])
devfs: boot_options: 0x0
tts/%d0 at I/O 0x50000000 (irq = 52) is a S3C2410
tts/%d1 at I/O 0x50004000 (irq = 55) is a S3C2410
tts/%d2 at I/O 0x50008000 (irq = 5 is a S3C2410
Console: switching to colour frame buffer device 30x40
Installed S3C2410 frame buffer
pty: 256 Unix98 ptys configured
s3c2410-ts initialized
s3c2410-pwm initialized
S3C2410 Real Time Clock Driver v0.1
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
eth0: cs8900 rev K(3.3 Volts) found at 0xd0000300
cs89x0 media RJ-45, IRQ 37
loop: loaded (max 8 devices)
PPP generic driver version 2.4.1
PPP BSD Compression module registered
Linux video capture interface: v1.00
SCSI subsystem driver Revision: 1.00
NAND device: Manufacturer ID: 0xec, Chip ID: 0x76 (Samsung NAND 64MiB 3,3V)
Creating 5 MTD partitions on "NAND 64MiB 3,3V":
0x00000000-0x00030000 : "boot"
0x00030000-0x00200000 : "kernel"
0x00200000-0x02000000 : "rootfs"
0x02000000-0x03000000 : "ext-fs1"
0x03000000-0x04000000 : "ext-fs2"
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
usb-ohci.c: USB OHCI at membase 0xe9000000, IRQ 26
usb.c: new USB bus registered, assigned bus number 1
hub.c: USB hub found
port #1 suspened!
port #0 alived!
hub.c: 1 port detected
usb.c: registered new driver usb_mouse
usbmouse.c: v1.6:USB HID Boot Protocol mouse driver
usb.c: registered new driver keyboard
usbkbd.c: :USB HID Boot Protocol keyboard driver
mice: PS/2 mouse device common for all mice
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 4096)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NetWinder Floating Point Emulator V0.95 (c) 1998-1999 Rebel.com
VFS: Cannot open root device "bon/2" or 00:0b
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on 00:0b


vivi 和2.6.14内核都是自己编译好的,根文件系统是从友善那里下的cramfs,烧到nandflash后内核可以启动,也可以挂载文件系统.以下(1)为启动信息. 但是由于这个2.6内核暂时什么都没有,因此我修改好vivi的启动参数linux_cmd_line后换回2.4.18内核,这时内核能启动,但是却挂不上文件系统了.以下(2)为该情况下的串口打印信息.
问题:
1.此2.4内核之前是能挂载该文件系统的,请问为什么现在不行了呢?跟我修改了vivi的mtd分区大小有关吗 ?我现在内核是启动了吧?是不是现在内核没有取得正确的启动参数?如何修改呢?请大家对比看看这两份串口信息,给点建议.

2. 我自己做的文件系统从来没有被挂载上去.....我是按照一篇文档的步骤做的,请问在制作文件系统的过程中,最关键的地方是什么?假如我只想内核在启动的时候挂载该文件系统而进入命令台,我的linuxrc应该怎样写呢? 我之前看的那篇文档看的不清楚(字体太模糊了),有谁能在这里举个例子,让我看看linuxrc文件是怎么写的吗?
问题比较多,请多包涵.多谢了!!!