jffs2_get_inode_nodes(): Data CRC failed on node at 0xXX XXXXXX: Read 0xXXXXXXXX, calculated 0xXXXXXXXX
The message above is printed if the file system was not cleanly unmounted. The system should not be powered off before all partitions are unmounted. After a clean unmount, the message should disappear.
Step 1: Set bootargs to be passed to the kernel
The environmental variable bootargs must be updated to tell Linux that the rootfs is taken from Flash and it is stored in JFFS2 file system. Enter the following commands to manually initate these commands:
#setenv bootargs root=/dev/mtdblock3 rw rootfstype=jffs2 ip=... console=...
#saveenv
Step 2: Copy the kernel to RAM
Depending on the flash type of your platform, use for NOR flash the following command to copy the kernel from Flash to RAM memory:
#cp.b <startaddr> <loadaddr> <image_size>
For NAND flash use the following command:
#nand read.jffs2s <loadaddr> <startaddr> <image_size>
Step 3: Launch the kernel from RAM
Now that the kernel image has been copied to RAM, we can execute Linux with the following command:
#bootm <loadaddr>
5 8 | L x N E T E S U s e r ’ s G u i d e |
