Can't find ext2 filesystem on dev mtdblock

[Anil Giri]

Hi Callebaut,
       Thanks for the support. I was able to fix the problem.
The problem was with the endianess of the created file system.
Changing the endianess to big endian solved the problem.
and i will be moving to cramfs/jffs2 filesystem shortly.

-Anil

Quoting Callebaut Benoit <callebaut at mailandnews.com>:

>
> Hi,
>
> >   I am getting following error while mounting the filesystem.
> >I am using ppcboot and linux-2.4.18 . The same filesystem was earlier
> >working for linux-2.2.14.
> >
> >=========================================================
> >   VFS: Can't find ext2 filesystem on dev mtdblock(31,0)
> >=========================================================
> >
> >What has gone wrong??
>
> I don't know precisely what changed between the two kernels but I use
> ppcboot
> and a 2.4.17 based kernel. So I will try to help you.
> First it is strange that you use a ext2 filesystem on a flash. A better
> choice
> would be CRAMFS (READ ONLY) or JFFS. And pay attention that the write
> support
> to the flash is not full proof (experrimental status). So first check
> that
> your filesystem valid is.
> Second remarks : Do you try to mount this as root filesystem or not (I
> don't
> think so). But such a line doesn't say a lot of the possible problem.
>
> So first check the filesystem integrity (with fschk or a probe)
> Two check that you can access your flash with a character
> driver(/dev/mtd0) in
> case of a bad setting in the kernel (FLASH base address change)
> Third give more informations like a full syslog or even better look
> directly
> in the log_bu buffer in RAM (buffer where all the printk text is placed
> before
> writing it to syslog).
> Fourth : use a probe, GDB and debug your kernel.
>
> Good luck,
> Benoit Callebaut
>
>
>
>



===========================
Anil Kr. Giri
Tejas Networks India Ltd.
Race Course Road, Bangalore
Phone: 2267495 Ext: 4075
===========================

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/