Need advice: unable to mount filesystem

[Linus Walleij]

On Wed, Feb 13, 2013 at 1:29 PM, Amit Virdi <amit.virdi at st.com> wrote:

> I have tried mounting the filesystem from DDR, that too with no success. One
> observation is that before mounting the FS, the kernel throws a warning:
> --
> Warning: unable to open an initial console.

This is not your problem. The kernel screams that all the time, (I once
saw that explained and some ugly workaround for).

This (from your log) is the real problem:

VFS: Cannot open root device "mtdblock3" or unknown-block(31,3): error -14
Please append a correct "root=" boot option; here are the available partitions:
1f00              64 mtdblock0  (driver?)
1f01             192 mtdblock1  (driver?)
1f02            2048 mtdblock2  (driver?)
1f03           14080 mtdblock3  (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,3)
[<2000cb50>] (unwind_backtrace+0x0/0xf8) from [<2018655c>] (panic+0x8c/0x1d8)
[<2018655c>] (panic+0x8c/0x1d8) from [<201f8d58>] (mount_block_root+0x1fc/0x2b8)
[<201f8d58>] (mount_block_root+0x1fc/0x2b8) from [<201f90c0>]
(prepare_namespace+0x160/0x1b8)
[<201f90c0>] (prepare_namespace+0x160/0x1b8) from [<20185984>]
(kernel_init+0x8/0xe4)
[<20185984>] (kernel_init+0x8/0xe4) from [<20008e98>] (ret_from_fork+0x14/0x3c)

The kernel cannot find a working filesystem at mtdblock3.

> I have even tried using initramfs (compiled kernel with busybox binary).

And how does the boot log look when you try to do that?

Yours,
Linus Walleij