From: Lei Yang <lya755@ece.northwestern.edu>
To: linux-kernel@vger.kernel.org
Cc: Lei Yang <lya755@ece.northwestern.edu>
Subject: Re: loopback on block device
Date: Wed, 27 Oct 2004 13:29:54 -0500 [thread overview]
Message-ID: <417FE922.7080009@ece.northwestern.edu> (raw)
In-Reply-To: <417FE703.3070608@ece.northwestern.edu>
Please cc me if you have answers to this, I am not on the list. Thanks a
lot!
Lei Yang wrote:
> Hello,
>
> Here is a question for loopback device. As far as I understand, the
> loopback device is used to mount files as if they were block devices.
>
> Then Why I could do "losetup -e XOR /dev/loop0 /dev/ram0" ? Notice
> that ram0 is not mounted anywhere and does not have a filesystem on
> it. I've tried that command and there seems to be no error. I got
> confused and looked into loop.c, it seems to me that a loopback device
> should be associated with a "backing file", why would it work on a
> block device anyway?
>
> I'd appreciate your comments greatly!
>
> TIA,
> Lei
>
next prev parent reply other threads:[~2004-10-27 18:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-27 18:20 loopback on block device Lei Yang
2004-10-27 18:29 ` Lei Yang [this message]
2004-10-28 0:31 ` Al Viro
2004-10-27 18:58 ` linux-os
2004-10-27 19:42 ` Lei Yang
2004-10-28 9:48 ` Helge Hafting
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