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Date: Wed, 21 Jul 2004 19:47:12 -0400
From: "George G. Davis" <davis_g@comcast.net>
To: Lei Yang <leiyang@nec-labs.com>
Cc: "Linux-Kernel (E-mail)" <linux-kernel@vger.kernel.org>,
       "Kernelnewbies (E-mail)" <kernelnewbies@nl.linux.org>
Subject: Re: Jffs2 file system
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On Wed, Jul 21, 2004 at 03:48:35PM -0400, Lei Yang wrote:
> Hello,
> 
> Can I use jffs2 on a ramdisk? Is jffs2 only designed to be used on flash memory devices rather than RAM devices?

Your jffs2 question was already answered.

But this one wasn't answered:

> What about cramfs?

You can in fact use cramfs "on a ramdisk", e.g.:

cat image.cramfs > /dev/ram1
mkdir /mnt/cramfs
mount -oro /dev/ram1 /mnt/cramfs
mount | grep ram1
/dev/ram1 on /mnt/cramfs type cramfs (ro)

Of course cramfs also works on other block devices as well, e.g. mtdblock.

--
Regards,
George