cramfs: wrong magic :

Thu Mar 18 02:48:22 EST 2004

Hi,

I had used the kernel source from embedded edge (http://embeddededge.com/downloads/amd-alchemy/)
to boot Au1550 based board. While booting, the kernel couldn't mount the
filesystem (cramfs).
It panics with the message "cramfs wrong magic".

Please help me to solve this issue. I had listed below the boot
message.

Thanks and Regards,
Xavier.

YAMON ROM Monitor, Revision 02.20PB1550.
Copyright (c) 1999-2000 MIPS Technologies, Inc. - All Rights Reserved.

For a list of available commands, type 'help'.

Compilation time =            Dec 11 2003  08:34:31
MAC address =                 0a.01.00.00.00.0f
Processor Company ID =        0x03
Processor ID/revision =       0x02 / 0x00
Endianness =                  Little
CPU =                         396 MHz
Flash memory size =           128 MByte
SDRAM size =                  128 MByte
First free SDRAM address =    0x8008d484

Environment variable 'start' exists. After 2 seconds
it will be interpreted as a YAMON command and executed.
Press Ctrl-C to bypass this.

YAMON> erase
what...
The following area will be erased:
Start address = 0x18000000
Size          = 0x07c00000
Confirm ? (y/n) y
Erasing...Done
YAMON> load -r tftp://10.145.2.248/cramfsimage.srec
About to load tftp://10.145.2.248/cramfsimage.srec
Press Ctrl-C to break
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Start = 0xbf100000, range = (0xbf100000,0xbf6cdfff), format = SREC
YAMON> load -r tftp://10.145.2.248/zImage.srec
About to load tftp://10.145.2.248/zImage.srec
Press Ctrl-C to break
........................................
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Start = 0xbf000000, range = (0xbf000000,0xbf0d5fff), format = SREC
YAMON> go bf000000 root=/dev/mtdblock1
loaded at:     BF000000 BF0D6000
relocated to:  81000000 810D6000
zimage at:     81006540 810D504D
Uncompressing Linux at load address 80100000
Now booting the kernel
CPU revision is: 03030200
Primary instruction cache 16kB, physically tagged, 4-way, linesize 32
bytes.
Primary data cache 16kB 4-way, linesize 32 bytes.
Linux version 2.4.25 (root at homenet2) (gcc version 2.95.3 20010315
(release/Monta
Vista)) #3 Thu Mar 18 11:24:15 IST 2004
AMD Alchemy Pb1550 Board
Au1550 AA (PRId 03030200) @ 396MHZ
BCLK switching enabled!
Determined physical RAM map:
 memory: 08000000 @ 00000000 (usable)
On node 0 totalpages: 32768
zone(0): 32768 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/mtdblock1 console=ttyS0,115200
calculating r4koff... 003c6cc0(3960000)
CPU frequency 396.00 MHz
Console: colour dummy device 80x25
Calibrating delay loop... 395.67 BogoMIPS
Memory: 126304k/131072k available (1684k kernel code, 4768k reserved,
216k data,
 276k init, 0k highmem)
Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Checking for 'wait' instruction...  unavailable.
POSIX conformance testing by UNIFIX
Autoconfig PCI channel 0x80324138
Scanning bus 00, I/O 0x00000300:0x00100000, Mem 0x40000000:0x50000000
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
pty: 256 Unix98 ptys configured
Serial driver version 1.01 (2001-02-08) with no serial options enabled
ttyS00 at 0xb1100000 (irq = 0) is a 16550
ttyS01 at 0xb1200000 (irq = 1) is a 16550
ttyS02 at 0xb1300000 (irq = 2) is a 16550
ttyS03 at 0xb1400000 (irq = 3) is a 16550
loop: loaded (max 8 devices)
au1000eth.c:1.4 ppopov at mvista.com

eth0: Au1x Ethernet found at 0xb0500000, irq 27
eth0: AMD 79C874 10/100 BaseT PHY at phy address 31
eth0: Using AMD 79C874 10/100 BaseT PHY as default
eth1: Au1x Ethernet found at 0xb0510000, irq 28
eth1: AMD 79C874 10/100 BaseT PHY at phy address 31
eth1: Using AMD 79C874 10/100 BaseT PHY as default
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 50MHz system bus speed for PIO modes; override with
idebus=xx
Au1550 psc audio: DAC: DMA16, ADC: DMA17
ac97_codec: AC97 Audio codec, id: 0x8384:0x7652 (SigmaTel STAC9752/53)
Au1550 psc audio: AC'97 Base/Extended ID = 6a90/0a05
Pb1550 MTD: boot:swap 0
Pb1550 flash: probing 32-bit flash bus
Pb1550 flash: Found 2 x16 devices at 0x4000000 in 32-bit mode
 Amd/Fujitsu Extended Query Table v1.3 at 0x0040
number of CFI chips: 2
Creating 3 MTD partitions on "Pb1550 flash":
0x00000000-0x07c00000 : "User FS"
0x07c00000-0x07d00000 : "yamon"
0x07d00000-0x07fc0000 : "raw kernel"
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 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
cramfs: wrong magic :
Kernel panic: VFS: Unable to mount root fs on 1f:01

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