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各位高手:
小弟正在移植Linux-2.6.26至达芬奇平台。编译后运行内核,采用NFS网络文件系统模式。内核运行时出现“VFS:cannot open root device “nfs” orunknown-block(0,255)”。请教出现此问题的原因。谢谢!内核启动信息如下:
U-Boot 1.1.3(Jul 16 2009 - 15:15:33)
U-Boot code: 81080000 -> 810976AC
BSS: -> 810A009C
RAM Configuration:
Bank #0: 80000000 256 MB
MY S29 FLASH
Flash: 32 MB
In:
serial
Out:
serial
Err:
serial
ARM Clock :- 297MHz
DDR Clock :- 189MHz
I2Cread: I/O error
Hit key %to stop autoboot:
0
TFTP from server 192.168.8.102; our IPaddress is 192.168.8.146
Filename 'uImage'.
Load address: 0x80700000
Loading: WARN: emac_send_packet: No link
T#################################################################
#################################################################
#################################################################
#################################################################
#############################################
done
Bytes transferred = 1557628 (17c47chex)
## Booting image at 80700000 ...
Image Name:
Linux-2.6.26.5
Image Type:
ARM Linux KernelImage (uncompressed)
Data Size:
1557564 Bytes =
1.5 MB
Load Address: 80008000
Entry Point:
80008000
Verifying Checksum ... OK
OK
Starting kernel ...
Uncompressing Linux....................................................................................................done, booting the kernel.
Linux version 2.6.26.5(root@axyf.localdomain) (gcc version 4.2.0 (MontaVista 4.2.0-16.0.32.0801914 2008-08-30))#8 Thu Jun 23 15:13:54 CST 2011
CPU: ARM926EJ-S [41069265] revision 5(ARMv5TEJ), cr=00053177
Machine: DaVinci EVM
Memory policy: ECC disabled, Data cachewriteback
DaVinci DM6446 variant 0x1
CPU0: D VIVT write-back cache
CPU0: I cache: 16384 bytes, associativity4, 32 byte lines, 128 sets
CPU0: D cache: 8192 bytes, associativity 4,32 byte lines, 64 sets
Built 1 zonelists in Zone order, mobilitygrouping on.
Total pages: 65024
Kernel command line: console=ttyS0,115200n8noinitrd rw ip=192.168.8.146:192.168.8.102:192.168.8.102:255.255.0.0:: ffroot=/dev/nfs nfsroot=192.168.8.102:/home/davinciuser/workdir/filesys, nolock
PID hash table entries: 1024 (order: 10,4096 bytes)
Console: colour dummy device 80x30
Dentry cache hash table entries: 32768(order: 5, 131072 bytes)
Inode-cache hash table entries: 16384(order: 4, 65536 bytes)
Memory: 256MB = 256MB total
Memory: 256512KB available (2916K code,206K data, 88K init)
SLUB: Genslabs=12, HWalign=32, Order=0-3,MinObjects=0, CPUs=1, Nodes=1
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
net_namespace: 192 bytes
NET: Registered protocol family 16
DaVinci: 71 gpio irqs
NET: Registered protocol family 2
IP route cache hash table entries: 2048(order: 1, 8192 bytes)
TCP established hash table entries: 8192(order: 4, 65536 bytes)
TCP bind hash table entries: 8192 (order:3, 32768 bytes)
TCP: Hash tables configured (established8192 bind 8192)
TCP renoregistered
NET: Registered protocol family 1
Installing knfsd (copyright (C) 1996okir@monad.swb.de).
JFFS2 version2.2. (NAND) © 2001-2006 Red Hat, Inc.
fuse init (API version 7.9)
JFS: nTxBlock = 2005, nTxLock = 16040
SGI XFS with security attributes, no debugenabled
msgmni has been set to 501
io scheduler noop registered
io scheduler anticipatory registered (default)
Serial: 8250/16550 driver $Revision: 1.90 $2 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO 0x1c20000 (irq = 40) is a 16550A
console [ttyS0] enabled
brd: module loaded
TI DaVinci EMAC: MAC address is08:00:28:32:06:08
TI DaVinci EMAC Linux version updated 4.0
TI DaVinci EMAC: Installed 1 instances.
DaVinci flash: probing 16-bit flash bus
DaVinci flash: Probing for AMD compatibleflash...
ADDR_MANUFACTURER = 0x1
ADDR_DEVICE_ID = 0x227e
ADDR_DEVICE_ID2 = 0x2222
ADDR_DEVICE_ID3 = 0x2201
dev_id = 0x2201
DaVinci flash: Found 1 x 16MiB AMD AM29LV256M at 0x0
ADDR_MANUFACTURER = 0x1
ADDR_DEVICE_ID = 0x227e
ADDR_DEVICE_ID2 = 0x2222
ADDR_DEVICE_ID3 = 0x2201
dev_id = 0x2201
DaVinci flash: Found 1 x 16MiB AMD AM29LV256M at 0x1000000
ADDR_MANUFACTURER = 0x90
ADDR_DEVICE_ID = 0x55
ADDR_DEVICE_ID2 = 0x3939
ADDR_DEVICE_ID3 = 0x3535
dev_id = 0x3535
ADDR_MANUFACTURER = 0x90
ADDR_DEVICE_ID = 0x55
ADDR_DEVICE_ID2 = 0x3939
ADDR_DEVICE_ID3 = 0x3535
dev_id = 0x3535
ADDR_MANUFACTURER = 0x90
ADDR_DEVICE_ID = 0x55
ADDR_DEVICE_ID2 = 0x3939
ADDR_DEVICE_ID3 = 0x3535
dev_id = 0x3535
ADDR_MANUFACTURER = 0x90
ADDR_DEVICE_ID = 0x55
ADDR_DEVICE_ID2 = 0x3939
ADDR_DEVICE_ID3 = 0x3535
dev_id = 0x3535
ADDR_MANUFACTURER = 0x90
ADDR_DEVICE_ID = 0x55
ADDR_DEVICE_ID2 = 0xffff
ADDR_DEVICE_ID3 = 0x3535
dev_id = 0x3535
ADDR_MANUFACTURER = 0x90
ADDR_DEVICE_ID = 0x55
ADDR_DEVICE_ID2 = 0xffff
ADDR_DEVICE_ID3 = 0x3535
dev_id = 0x3535
ADDR_MANUFACTURER = 0x0
ADDR_DEVICE_ID = 0x0
ADDR_DEVICE_ID2 = 0x0
ADDR_DEVICE_ID3 = 0x0
dev_id = 0x0
ADDR_MANUFACTURER = 0x0
ADDR_DEVICE_ID = 0x0
ADDR_DEVICE_ID2 = 0x0
ADDR_DEVICE_ID3 = 0x0
dev_id = 0x0
ADDR_MANUFACTURER = 0x0
ADDR_DEVICE_ID = 0x0
ADDR_DEVICE_ID2 = 0x0
ADDR_DEVICE_ID3 = 0x0
dev_id = 0x0
ADDR_MANUFACTURER = 0x0
ADDR_DEVICE_ID = 0x0
ADDR_DEVICE_ID2 = 0x0
ADDR_DEVICE_ID3 = 0x0
dev_id = 0x0
ADDR_MANUFACTURER = 0x0
ADDR_DEVICE_ID = 0x0
ADDR_DEVICE_ID2 = 0x0
ADDR_DEVICE_ID3 = 0x0
dev_id = 0x0
ADDR_MANUFACTURER = 0x0
ADDR_DEVICE_ID = 0x0
ADDR_DEVICE_ID2 = 0x0
ADDR_DEVICE_ID3 = 0x0
dev_id = 0x0
ADDR_MANUFACTURER = 0x0
ADDR_DEVICE_ID = 0x0
ADDR_DEVICE_ID2 = 0x0
ADDR_DEVICE_ID3 = 0x0
dev_id = 0x0
ADDR_MANUFACTURER = 0x0
ADDR_DEVICE_ID = 0x0
ADDR_DEVICE_ID2 = 0x0
ADDR_DEVICE_ID3 = 0x0
dev_id = 0x0
Unlocking the entire NOR flash.
mice: PS/2 mouse device common for all mice
TCP cubic registered
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
VFS: Cannot open root device"nfs" or unknown-block(0,255)
Please append a correct "root="boot option; here are the available partitions:
1f00
32768 mtdblock0(driver?)
Kernel panic - not syncing: VFS: Unable tomount root fs on unknown-block(0,255) |
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