problems on building root filesystem using scratchbox and meamo

[xuxian]

Hi,

What part decides the size of erase block? The hardware, the kernel or the
root filesystem?

Best regards,
xuxian

-----Original Message-----
From: linux-omap-open-source-bounces at linux.omap.com
[mailto:linux-omap-open-source-bounces at linux.omap.com] On Behalf Of Matthew
Percival
Sent: Thursday, December 08, 2005 6:05 AM
To: Linux OMAP Open Source
Subject: RE: problems on building root filesystem using scratchbox and meamo

G'Day,

> I use the command:
>   mkfs.jffs2 -p -l -e 0x20000 -n -v -r /home/xuxian/rootfs/fs -o
> filesys.jffs2
> to make the root filesystem image. 

	For my OSK, -e 0x20000 is the correct size; the command I use is
basically the same as you.  

> What size of the erase block will be fine? I can't access the file
/proc/mtd
> because I cannot mount the filesystem. Does the kernel determine the size
of
> erase block or anything else? Where can I set the erase block size?

	If you mount your filesystem as an NFS root rather than an image,
then
you can read /proc/mtd, but I would say you are most likely correct in
your erase size.

	I am not familiar with scratchbox or maemo, so it is possible your
problem relates to them, but I cannot be sure.  Sorry, I probably will
not be of much help here.

	-- Matthew

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