2008-04-26 05:39:33     Unable to mount rootfs of jffs2 on BF527-EZKIT

2008-04-26 05:39:33     Unable to mount rootfs of jffs2 on BF527-EZKIT

Aaron Zhong (CHINA)

Message: 55019   

Hi, could anyone help me to find out why the kernel can't mount the rootfs of jffs2?

I have followed the guide http://docs.blackfin.uclinux.org/doku.php?id=enabling_jffs2&s=serial%20flash

but it seemed not work.

The ls command on u-boot works and I also checked the magic number of rootfs:

bfin> md.b 0x20100000 0x02

20100000: 85 19    ..

The uclinux and toolchain version is 2008R1-RC8 and 08r1-8 respectlvely.

Any suggestions? Thanks in advance.

Starting Kernel at = 13c000

Linux version 2.6.22.18-ADI-2008R1-svn (root@W55) (gcc version 4.1.2 (ADI svn)) #53 Sat Apr 26 17:26:19 CST 2008

early printk enabled on early_BFuart0

Hardware Trace Active and Enabled

Blackfin support (C) 2004-2007 Analog Devices, Inc.

Compiled for ADSP-BF527 Rev 0.0

Warning: Unsupported Chip Revision ADSP-BF527 Rev 0.0 detected

Blackfin Linux support by http://blackfin.uclinux.org/

Processor Speed: 525 MHz core clock and 131 MHz System Clock

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

  text      = 0x00001000-0x00102aa0

  rodata    = 0x00103000-0x0012a064

  data      = 0x0012b000-0x0013c000

    stack   = 0x0012c000-0x0012e000

  init      = 0x0013c000-0x00151000

  bss       = 0x00151000-0x0015fe88

  available = 0x0015fe88-0x03eff000

  DMA Zone  = 0x03f00000-0x04000000

Instruction Cache Enabled

Data Cache Enabled (write-through)

Built 1 zonelists.  Total pages: 16002

Kernel command line: root=/dev/mtdblock2 rw rootfstype=jffs2 earlyprintk=serial,uart1,57600 console=tty0 console=ttyBF0,57600 mtdparts=physmap-flash.0:192k(uboot)ro,832k(kernel),-(rootfs)

Configuring Blackfin Priority Driven Interrupts

PID hash table entries: 256 (order: 8, 1024 bytes)

console handover: boot [early_BFuart0] -> real [ttyBF0]

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

Memory available: 59836k/65536k RAM, (84k init code, 1030k kernel code, 289k data, 1024k dma, 3272k reserved)

Blackfin Scratchpad data SRAM: 4 KB

Blackfin Data A SRAM: 16 KB (15 KB free)

Blackfin Data B SRAM: 16 KB (16 KB free)

Blackfin Instruction SRAM: 48 KB (43 KB free)

Security Framework v1.0.0 initialized

Capability LSM initialized

Mount-cache hash table entries: 512

NET: Registered protocol family 16

Blackfin GPIO Controller

Blackfin DMA Controller

stamp_init(): registering device resources

Generic PHY: Registered new driver

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

JFFS2 version 2.2. (NAND) (SUMMARY)  Copyright 2001-2006 Red Hat, Inc.

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler cfq registered

Serial: Blackfin serial driver

bfin-uart.1: ttyBF0 at MMIO 0xffc02000 (irq = 31) is a BFIN-UART

RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize

bfin_mac_mdio: probed

bfin_mac: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:03, irq=-1, mdc_clk=2500000Hz(mdc_div=25)@sclk=131MHz)

bfin_mac: Version 1.1, Blackfin BF53[67] BF527 on-chip Ethernet MAC driver

physmap platform flash device: 00400000 at 20000000

3 cmdlinepart partitions found on MTD device physmap-flash.0

Creating 3 MTD partitions on "physmap-flash.0":

0x00000000-0x00030000 : "uboot"

0x00030000-0x00100000 : "kernel"

0x00100000-0x00400000 : "rootfs"

Generic platform RAM MTD, (c) 2004 Simtec Electronics

bfin-spi bfin-spi.0: Blackfin BF5xx on-chip SPI Contoller Driver, Version 1.0, regs_base@ffc00500, dma channel@7

rtc-bfin rtc-bfin: rtc core: registered rtc-bfin as rtc0

i2c /dev entries driver

i2c-bfin-twi i2c-bfin-twi.0: Blackfin BF5xx on-chip I2C TWI Contoller Driver, Version 1.8, regs_base@ffc01400

Advanced Linux Sound Architecture Driver Version 1.0.12rc1 (Thu Jun 22 13:55:50 2006 UTC).

ALSA device list:

  No soundcards found.

TCP cubic registered

NET: Registered protocol family 1

NET: Registered protocol family 17

rtc-bfin rtc-bfin: setting the system clock to 1982-10-09 04:45:20 (402986720)

jffs2: Flash size not aligned to erasesize, reducing to 0KiB

jffs2: Too few erase blocks (0)

List of all partitions:

1f00        192 mtdblock0 (driver?)

1f01        832 mtdblock1 (driver?)

1f02       3072 mtdblock2 (driver?)

No filesystem could mount root, tried:  jffs2

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)

QuoteReplyEditDelete

2008-04-26 17:22:03     Re: Unable to mount rootfs of jffs2 on BF527-EZKIT

Robin Getz (UNITED STATES)

Message: 55027    Aaron:

Your bootmessage has the error:

>jffs2: Flash size not aligned to erasesize, reducing to 0KiB

> jffs2: Too few erase blocks (0)

> List of all partitions:

> 1f00 192 mtdblock0 (driver?)

> 1f01 832 mtdblock1 (driver?)

> 1f02 3072 mtdblock2 (driver?)

You don't have the proper flash chip driver installed in your kernel (I think).

-Robin

QuoteReplyEditDelete

2008-04-28 05:22:27     Re: Unable to mount rootfs of jffs2 on BF527-EZKIT

Aaron Zhong (CHINA)

Message: 55110   

Hi Robin, could you give me a way to check whether the flash driver works? From the boot message,

I think the flash has been detected. My flash is 4M parallel flash of M29W320EB. My MTD configuration is

CONFIG_MTD=y

CONFIG_MTD_CONCAT=y

CONFIG_MTD_PARTITIONS=y

CONFIG_MTD_CMDLINE_PARTS=y

CONFIG_MTD_CHAR=y

CONFIG_MTD_BLKDEVS=y

CONFIG_MTD_BLOCK=y

CONFIG_MTD_CFI=y

CONFIG_MTD_JEDECPROBE=y

CONFIG_MTD_GEN_PROBE=y

CONFIG_MTD_CFI_ADV_OPTIONS=y

CONFIG_MTD_CFI_NOSWAP=y

CONFIG_MTD_CFI_GEOMETRY=y

CONFIG_MTD_MAP_BANK_WIDTH_2=y

CONFIG_MTD_CFI_I4=y

CONFIG_MTD_CFI_INTELEXT=y

CONFIG_MTD_CFI_AMDSTD=y

CONFIG_MTD_CFI_STAA=y

CONFIG_MTD_CFI_UTIL=y

CONFIG_MTD_RAM=y

CONFIG_MTD_ROM=y

CONFIG_MTD_COMPLEX_MAPPINGS=y

CONFIG_MTD_PHYSMAP=y

CONFIG_MTD_PHYSMAP_START=0x20000000

CONFIG_MTD_PHYSMAP_LEN=0x400000

CONFIG_MTD_PHYSMAP_BANKWIDTH=2

CONFIG_MTD_PLATRAM=y

QuoteReplyEditDelete

2008-04-28 08:08:46     Re: Unable to mount rootfs of jffs2 on BF527-EZKIT

Robin Getz (UNITED STATES)

Message: 55122    Aaron:

If the flash driver was working it wouldn't say " (driver?)" in the bootmsg.

I'll check things out on a platform today.

-robin

QuoteReplyEditDelete

2008-04-28 22:36:44     Re: Unable to mount rootfs of jffs2 on BF527-EZKIT

Aaron Zhong (CHINA)

Message: 55185   

Thanks very much.  Actually, I add some prink in jedec_probe_chip and found it is not called.

I think the M29W320EB flash chip should also be probed by jedec interface, is it right?

I found some similar M29Wxxx chips in jedec_probe.c.

QuoteReplyEditDelete

2008-04-29 15:10:25     Re: Unable to mount rootfs of jffs2 on BF527-EZKIT

Robin Getz (UNITED STATES)

Message: 55241    Aaron:

I think Michael fixed this on 2008R1 branch and trunk.

Can you check things out, and try it?

Thanks

-Robin

QuoteReplyEditDelete

2008-04-29 21:36:57     Re: Unable to mount rootfs of jffs2 on BF527-EZKIT

Aaron Zhong (CHINA)

Message: 55259    My uClinux distribution version is already 2008R1-RC8. Do you mean check the newest version out from SVN?

QuoteReplyEditDelete

2008-04-30 00:36:56     Re: Unable to mount rootfs of jffs2 on BF527-EZKIT

Robin Getz (UNITED STATES)

Message: 55266    Aaron:

Yes. - check out _branch_ version from svn.

The plan is to fix a few more bugs/issues on BF548/BF527 and make a new version of the 2008R1 release, but it may not be for a few weeks/few months before all planned things get resolved.

-Robin

QuoteReplyEditDelete

2008-05-09 04:21:22     Re: Unable to mount rootfs of jffs2 on BF527-EZKIT

Aaron Zhong (CHINA)

Message: 55665   

Hi Robin:

I have tried the newest version in svn, but it did not work either. Could you give me some help?

The kernel configuration is:

CONFIG_MTD=y

CONFIG_MTD_CONCAT=y

CONFIG_MTD_PARTITIONS=y

CONFIG_MTD_CMDLINE_PARTS=y

CONFIG_MTD_CHAR=y

CONFIG_MTD_BLKDEVS=y

CONFIG_MTD_BLOCK=y

CONFIG_MTD_CFI=y

CONFIG_MTD_GEN_PROBE=y

CONFIG_MTD_CFI_ADV_OPTIONS=y

CONFIG_MTD_CFI_NOSWAP=y

CONFIG_MTD_CFI_GEOMETRY=y

CONFIG_MTD_MAP_BANK_WIDTH_1=y

CONFIG_MTD_MAP_BANK_WIDTH_2=y

CONFIG_MTD_MAP_BANK_WIDTH_4=y

CONFIG_MTD_MAP_BANK_WIDTH_8=y

CONFIG_MTD_MAP_BANK_WIDTH_16=y

CONFIG_MTD_MAP_BANK_WIDTH_32=y

CONFIG_MTD_CFI_I1=y

CONFIG_MTD_CFI_I2=y

CONFIG_MTD_CFI_I4=y

CONFIG_MTD_CFI_I8=y

CONFIG_MTD_CFI_AMDSTD=y

CONFIG_MTD_CFI_STAA=y

CONFIG_MTD_CFI_UTIL=y

CONFIG_MTD_RAM=y

CONFIG_MTD_ROM=y

CONFIG_MTD_COMPLEX_MAPPINGS=y

CONFIG_MTD_PHYSMAP=y

CONFIG_MTD_PHYSMAP_START=0x0

CONFIG_MTD_PHYSMAP_LEN=0x0

CONFIG_MTD_PHYSMAP_BANKWIDTH=2

CONFIG_MTD_PLATRAM=y

CONFIG_MTD_BLOCK2MTD=y

kernel message:

Linux version 2.6.24.5-ADI-2008R2-pre-svn4709 (root@fedora6) (gcc version 4.1.2 (ADI svn)) #6 Fri May 9 16:14:51 CST 2008

console [early_BFuart0] enabled

early printk enabled on early_BFuart0

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

  fixedcode = 0x00000400-0x00000490

  text      = 0x00001000-0x00116720

  rodata    = 0x00116860-0x0013fed8

  bss       = 0x0013fee0-0x0014d75c

  data      = 0x0014d75c-0x00160000

    stack   = 0x0015e000-0x00160000

  init      = 0x00160000-0x00179000

  available = 0x00179000-0x03eff000

  DMA Zone  = 0x03f00000-0x04000000

Hardware Trace Active and Enabled

Blackfin support (C) 2004-2008 Analog Devices, Inc.

Compiled for ADSP-BF527 Rev 0.0

Warning: Unsupported Chip Revision ADSP-BF527 Rev 0.0 detected

Blackfin Linux support by http://blackfin.uclinux.org/

Processor Speed: 525 MHz core clock and 131 MHz System Clock

MPU: setting up cplb tables with memory protection

Instruction Cache Enabled

Data Cache Enabled (write-through)

Built 1 zonelists in Zone order, mobility grouping off.  Total pages: 16002

Kernel command line: bootargs=root=/dev/mtdblock2 rw rootfstype=jffs2 earlyprintk=serial,uart1,57600 console=tty0 console=ttyBF0,57600

Configuring Blackfin Priority Driven Interrupts

PID hash table entries: 256 (order: 8, 1024 bytes)

console handover: boot [early_BFuart0] -> real [ttyBF0]

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

Memory available: 59832k/65536k RAM, (100k init code, 1109k kernel code, 295k data, 1024k dma, 3172k reserved)

Blackfin Scratchpad data SRAM: 4 KB

Blackfin Data A SRAM: 16 KB (15 KB free)

Blackfin Data B SRAM: 16 KB (16 KB free)

Blackfin Instruction SRAM: 48 KB (43 KB free)

Security Framework initialized

Capability LSM initialized

Mount-cache hash table entries: 512

net_namespace: 64 bytes

NET: Registered protocol family 16

Blackfin GPIO Controller

Blackfin DMA Controller

stamp_init(): registering device resources

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

JFFS2 version 2.2. (NAND) (SUMMARY)  Copyright 2001-2006 Red Hat, Inc.

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler cfq registered

Serial: Blackfin serial driver

bfin-uart.1: ttyBF0 at MMIO 0xffc02000 (irq = 31) is a BFIN-UART

RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize

bfin_mac_mdio: probed

bfin_mac: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:01, irq=-1, mdc_clk=2500000Hz(mdc_div=25)@sclk=131MHz)

bfin_mac bfin_mac.0: Blackfin on-chip Ethernet MAC driver, Version 1.1

physmap platform flash device: 00400000 at 20000000

physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank

Amd/Fujitsu Extended Query Table at 0x0040

number of CFI chips: 1

cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.

RedBoot partition parsing not available

Using physmap partition information

Creating 3 MTD partitions on "physmap-flash.0":

0x00000000-0x00030000 : "Bootloader"

0x00030000-0x00100000 : "Kernel"

0x00100000-0x00400000 : "RootFS"

Generic platform RAM MTD, (c) 2004 Simtec Electronics

block2mtd: version $Revision: 4684 $

bfin-spi bfin-spi.0: Blackfin BF5xx on-chip SPI Controller Driver, Version 1.0, regs_base@ffc00500, dma channel@7

rtc-bfin rtc-bfin: rtc core: registered rtc-bfin as rtc0

i2c /dev entries driver

i2c-bfin-twi i2c-bfin-twi.0: Blackfin BF5xx on-chip I2C TWI Contoller, regs_base@ffc01400

Advanced Linux Sound Architecture Driver Version 1.0.12rc1 (Thu Jun 22 13:55:50 2006 UTC).

ALSA device list:

  No soundcards found.

TCP cubic registered

NET: Registered protocol family 1

NET: Registered protocol family 17

rtc-bfin rtc-bfin: setting system clock to 1982-10-22 03:30:21 UTC (404105421)

List of all partitions:

1f00        192 mtdblock0 (driver?)

1f01        832 mtdblock1 (driver?)

1f02       3072 mtdblock2 (driver?)

No filesystem could mount root, tried:  jffs2

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

QuoteReplyEditDelete

2008-05-09 04:42:57     Re: Unable to mount rootfs of jffs2 on BF527-EZKIT

Mike Frysinger (UNITED STATES)

Message: 55667   

your bootargs is not set correctly in u-boot ... you've accidently prepended a literal bootargs=

QuoteReplyEditDelete

2008-05-09 05:54:55     Re: Unable to mount rootfs of jffs2 on BF527-EZKIT

Aaron Zhong (CHINA)

Message: 55670   

Mike:

Do you mean the bootargs is not correct? When I reset the bootargs, the kernel print different messages.

It seemed the kernel try to mount rootfs but /dev/mtdblock2 is not a jffs2 device.

bfin> print bootargs

bootargs=root=/dev/mtdblock2 rw rootfstype=jffs2 earlyprintk=serial,uart1,57600 console=tty0 console=ttyBF0,57600

bfin> flinfo

Bank # 1: CFI conformant FLASH (16 x 16)  Size: 4 MB in 71 Sectors

Erase timeout 8192 ms, write timeout 1 ms, buffer write timeout 1 ms, buffer size 1

  Sector Start Addresses:

    20000000 (RO) 20002000 (RO) 20004000 (RO) 20006000 (RO) 20008000 (RO)

    2000A000 (RO) 2000C000 (RO) 2000E000 (RO) 20010000 (RO) 20020000   

    20030000      20040000      20050000      20060000      20070000   

    20080000      20090000      200A0000      200B0000      200C0000   

    200D0000      200E0000      200F0000      20100000      20110000   

    20120000      20130000      20140000      20150000      20160000   

    20170000      20180000      20190000      201A0000      201B0000   

    201C0000      201D0000      201E0000      201F0000      20200000   

    20210000      20220000      20230000      20240000      20250000   

    20260000      20270000      20280000      20290000      202A0000   

    202B0000      202C0000      202D0000      202E0000      202F0000   

    20300000      20310000      20320000      20330000      20340000   

    20350000      20360000      20370000      20380000      20390000   

    203A0000      203B0000      203C0000      203D0000      203E0000   

    203F0000   

bfin> fsinfo

### filesystem type is JFFS2

Scanning JFFS2 FS:     |   /   -   \   .    |   .    /   -   \   |   /   -   \   |   /   -    done.

Compression: NONE

frag count: 99

compressed sum: 9410

uncompressed sum: 9410

Compression: ZERO

frag count: 0

compressed sum: 0

uncompressed sum: 0

Compression: RTIME

frag count: 1

compressed sum: 26

uncompressed sum: 40

Compression: RUBINMIPS

frag count: 0

compressed sum: 0

uncompressed sum: 0

Compression: COPY

frag count: 0

compressed sum: 0

uncompressed sum: 0

Compression: DYNRUBIN

frag count: 0

compressed sum: 0

uncompressed sum: 0

Compression: ZLIB

frag count: 248

compressed sum: 629264

uncompressed sum: 920314

bfin> ls

drwxrwxrwt        0 Wed Apr 23 01:56:05 2008 tmp

drwxr-xr-x        0 Wed Apr 23 01:56:05 2008 root

drwxr-xr-x        0 Wed Apr 23 01:56:05 2008 usr

drwxr-xr-x        0 Sat Apr 26 08:10:04 2008 etc

drwxr-xr-x        0 Wed Apr 23 01:56:05 2008 var

drwxr-xr-x        0 Wed Apr 23 01:56:05 2008 home

drwxr-xr-x        0 Wed Apr 23 01:56:05 2008 mnt

drwxr-xr-x        0 Wed Apr 23 01:56:05 2008 sys

drwxr-xr-x        0 Sat Apr 26 08:10:05 2008 bin

drwxr-xr-x        0 Wed Apr 23 01:56:05 2008 proc

drwxr-xr-x        0 Wed Apr 23 01:56:05 2008 lib

drwxr-xr-x        0 Sat Apr 26 08:10:06 2008 dev

lrwxrwxrwx        3 Sat Apr 26 08:09:51 2008 sbin -> bin

bfin>

bfin_mac bfin_mac.0: Blackfin on-chip Ethernet MAC driver, Version 1.1

physmap platform flash device: 00400000 at 20000000

physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank

Amd/Fujitsu Extended Query Table at 0x0040

number of CFI chips: 1

cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.

RedBoot partition parsing not available

Using physmap partition information

Creating 3 MTD partitions on "physmap-flash.0":

0x00000000-0x00030000 : "Bootloader"

0x00030000-0x00100000 : "Kernel"

0x00100000-0x00400000 : "RootFS"

Generic platform RAM MTD, (c) 2004 Simtec Electronics

block2mtd: version $Revision: 4684 $

bfin-spi bfin-spi.0: Blackfin BF5xx on-chip SPI Controller Driver, Version 1.0, regs_base@ffc00500, dma channel@7

rtc-bfin rtc-bfin: rtc core: registered rtc-bfin as rtc0

i2c /dev entries driver

i2c-bfin-twi i2c-bfin-twi.0: Blackfin BF5xx on-chip I2C TWI Contoller, regs_base@ffc01400

Advanced Linux Sound Architecture Driver Version 1.0.12rc1 (Thu Jun 22 13:55:50 2006 UTC).

ALSA device list:

  No soundcards found.

TCP cubic registered

NET: Registered protocol family 1

NET: Registered protocol family 17

rtc-bfin rtc-bfin: setting system clock to 1982-10-22 04:50:59 UTC (404110259)

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000004: 0x0010 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000024: 0xffff instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0000002c: 0x292b instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000030: 0xd3ae instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000034: 0xff70 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000038: 0xe002 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000040: 0x98f7 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000044: 0xffff instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000058: 0x480e instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0000005c: 0x480e instead

Further such events for this erase block will not be printed

Empty flash at 0x000013f4 ends at 0x000013f8

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010000: 0xe9b3 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0001000c: 0xe002 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010014: 0x8b2d instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0001002c: 0x4812 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010030: 0x4812 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010034: 0x4812 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010044: 0x0438 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010048: 0xcff8 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0001004c: 0xe69e instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010050: 0x5654 instead

Further such events for this erase block will not be printed

Empty flash at 0x0001d398 ends at 0x0001d39c

Old JFFS2 bitmask found at 0x0001d3a8

You cannot use older JFFS2 filesystems with newer kernels

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020004: 0x042f instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0002000c: 0xe002 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020014: 0xe8cd instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020028: 0x0005 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0002002c: 0x4812 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020030: 0x4812 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020034: 0x4812 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020048: 0x516a instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0002004c: 0xc642 instead

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020050: 0x5354 instead

Further such events for this erase block will not be printed

Old JFFS2 bitmask found at 0x0002a8e0

You cannot use older JFFS2 filesystems with newer kernels

jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00030004: 0x0176 instead

...

Empty flash at 0x000ffebc ends at 0x000fff24

Cowardly refusing to erase blocks on filesystem with no valid JFFS2 nodes

empty_blocks 32, bad_blocks 0, c->nr_blocks 48

VFS: Cannot open root device "mtdblock2" or unknown-block(31,2)

Please append a correct "root=" boot option; here are the available partitions:

1f00        192 mtdblock0 (driver?)

1f01        832 mtdblock1 (driver?)

1f02       3072 mtdblock2 (driver?)

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)

QuoteReplyEditDelete

2008-05-09 06:30:30     Re: Unable to mount rootfs of jffs2 on BF527-EZKIT

Mike Frysinger (UNITED STATES)

Message: 55674   

make sure you wrote the jffs2 rootfs at the right offset that corresponds to the mtd partitioning scheme you're using