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	for linux-mtd@lists.infradead.org; Mon, 30 Jun 2008 15:01:38 +0000
Subject: Re: UBIFS error (pid 4687): compr_init: cannot inittialize
	compressor zlib, error -2
From: Artem Bityutskiy <dedekind@infradead.org>
To: xiaochuan-xu <xiaochuan-xu@cqu.edu.cn>
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Date: Mon, 30 Jun 2008 17:59:29 +0300
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Hi,

On Mon, 2008-06-30 at 20:44 +0800, xiaochuan-xu wrote:
> I have created a UBI layer on top of mtd and create a volumes in
> 2.6.26-rc5-01191-g23baa5b-dirty.
> and when i met such error when i modprobe ubifs:
> =20
> FATAL: Error inserting ubifs
> (/lib/mdules/2.6.26-rc5-01191-g23baa5b-dirty/kernel/fs/ubifs/ubifs.ko):
> Unknown symbol in module, or unknown parameter (see dmesg)

Did you run depmod -a
=20
> I've try to install zlib module,but I only found a similar module named
> zlib_deflate=20
> which is useless for the problem. Maybe seting CONFIG_UBIFS_FS_ZLIB =3D n
> can solve this problem.

You need "deflate" and "zlib_deflate" modules.

--=20
Best regards,
Artem Bityutskiy (=D0=91=D0=B8=D1=82=D1=8E=D1=86=D0=BA=D0=B8=D0=B9 =D0=90=
=D1=80=D1=82=D1=91=D0=BC)