JFFS2 as rootfs on DataFlash

Mangesh Edake
2008-02-19T15:10:53Z

Hello all,

I am using atmel dataflash (AT45DB321D) to store the
jffs2 image which is a rootfs. I am downloading the
image to SDRAM and then writing this image to
dataflash using uboot copy (cp) command like this,
u-boot# cp 21000000 14a000 192000

Once I boot the system, jffs2 is mounted as rootfs but
then I continuously get the "Node header CRC failed"
messages and then finally kernel panic with no init
found.

I'm using mkfs.jffs2 to create an image like,
mkfs.jffs2 -p -l -e 0x2100 -s 0x210 -n -d
/home/me/rootdir -o jffs2.img

I am totally lost and cannot figure out the reason for
the errors. I'd appericiate if anybody help to find
out the reason.

Following is the ouput LOG.
----------------------------

JFFS2 write-buffering enabled buffer (528) erasesize
(8448)
VFS: Mounted root (jffs2 filesystem) read-write.

Freeing init memory: 76K

JFFS2 notice: (1) jffs2_get_inode_nodes: Node header
CRC failed at 0x02fc70. {0807,0000,05c2764e,ab6f10c8}

JFFS2 notice: (1) jffs2_get_inode_nodes: Node header
CRC failed at 0x02fbfc. {fb1d,98f7,00000034,00000001}

JFFS2 notice: (1) jffs2_get_inode_nodes: Node header
CRC failed at 0x02fb88. {4269,67af,b497cad1,31616468}

JFFS2 notice: (1) jffs2_get_inode_nodes: Node header
CRC failed at 0x02faa0. {8f02,47b6,00000000,00000000}

JFFS2 notice: (1) jffs2_get_inode_nodes: Node header
CRC failed at 0x02fa2c. {584b,9ef4,e0011985,0000002c}

JFFS2 notice: (1) jffs2_get_inode_nodes: Node header
CRC failed at 0x02f9b8. {8f02,47b6,00000804,f3086019}

JFFS2 notice: (1) jffs2_get_inode_nodes: Node header
CRC failed at 0x02f944. {fb1d,98f7,00000046,00000001}

JFFS2 notice: (1) jffs2_get_inode_nodes: Node header
.
.

Warning: unable to open an initial console.

JFFS2 notice: (1) jffs2_get_inode_nodes: Node header
CRC failed at 0x0df814. {000e,0000,000000ef,000000f1}

JFFS2 notice: (1) read_unknown: unknown
RWCOMPAT_DELETE nodetype 0X2000 at 0x0df78c
JFFS2 notice: (634) jffs2_get_inode_nodes: Node header
CRC failed at 0x00017c. {6ee6,7d26,00000003,0000005f}

JFFS2 warning: (634) jffs2_do_read_inode_internal: no
data nodes found for ino #5

.
.

JFFS2 notice: (1) jffs2_get_inode_nodes: Node header
CRC failed at 0x02c168. {fb1d,98f7,00000062,00000001}

JFFS2 notice: (1) jffs2_get_inode_nodes: Node header
CRC failed at 0x000630. {89ed,0000,00000000,00031db0}

JFFS2 error: (1) jffs2_do_read_inode_internal: CRC
failed for read_inode of inode 2 at physical location
0x2c794

Kernel panic - not syncing: No init found. Try
passing init= option to kernel.

--
Best Regards...
Mangesh Edake.

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