3

After building buildroot with Kernelimage and rootfs (jffs2) i flashed them to my board.

bootargs set to: mem=64M console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=jffs2

Now when i boot i get the following error:

VFS: Cannot open root device "mtdblock1" or unknown-block(31,1) Please append a correct "root=" boot option; here are the available partitions: 1f00 256 mtdblock0 (driver?) 1f01 261888 mtdblock1 (driver?) 1f02 8448 mtdblock2 (driver?) Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,1)

anyone know what went wrong?

best regards

1

Check your kernel configuration. This message means that the kernel doesn't have a driver for what you've told it is the root device. Your command line looks plausible, so make sure you've included MTD block device support in the kernel (not as a module). Make sure you have jffs2 in the kernel as well.

  • well i am using a default config which should do fine, the following options are set: CONFIG_MTD=y CONFIG_MTD_CONCAT=y CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y CONFIG_MTD_DATAFLASH=y CONFIG_MTD_NAND=y CONFIG_MTD_NAND_ATMEL=y – Gobliins Dec 9 '10 at 7:40
  • for jffs2 i included CONFIG_JFFS2=y – Gobliins Dec 9 '10 at 7:40

Your Answer

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Not the answer you're looking for? Browse other questions tagged or ask your own question.