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From: Artem Bityutskiy <dedekind1@gmail.com>
To: Ricard Wanderlof <ricard.wanderlof@axis.com>
Cc: Linux mtd <linux-mtd@lists.infradead.org>
Subject: Re: ubirmvol:ing gluebied volumes
Date: Fri, 06 May 2011 22:07:45 +0300	[thread overview]
Message-ID: <1304708865.7222.106.camel@localhost> (raw)
In-Reply-To: <Pine.LNX.4.64.1105061412050.15966@lnxricardw.se.axis.com>

On Fri, 2011-05-06 at 14:17 +0200, Ricard Wanderlof wrote:
> I enabled the gluebi MTD emulation layer in the kernel, and was pleased to 
> see all the UBI volumes coming up in /proc/mtd as mtd volumes.

Hehe :-)

> However, one thing though, if I try to ubirmvol one of the UBI volumes, I 
> get:
> 
> ubirmvol: error!: cannot UBI remove volume
>            error 16 (Device or resource busy)

Yeah.

> similar to what I get if I have a mounted ubifs residing in an UBI volume 
> and try and ubirmvol the volume without umounting the file system.

Yes.

> Fair enough, I guess gluebi is keeping the UBI volume busy? But then how 
> do I free it up?

I think the only way is to rmmod gluebi.

>  There's normally no way to disassociate mtd partitions 
> from the underlying media, and I can't see any ubi tool that would do this 
> either.

Right.

> So is this an (unfortunate) consequence of using gluebi: that the 
> underlying UBI volumes can't be removed?

In current implementation yes. But you can rmomod it, shuffle UBI
volumes, and modprobe it again.

-- 
Best Regards,
Artem Bityutskiy (Артём Битюцкий)

  reply	other threads:[~2011-05-06 19:11 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-06 12:17 ubirmvol:ing gluebied volumes Ricard Wanderlof
2011-05-06 19:07 ` Artem Bityutskiy [this message]
2011-05-09  6:49   ` Ricard Wanderlof

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