Loopback problems (Re: Where is losetup?)

Hello,

On Mon, Oct 07, 2002 at 07:17:49PM +0200, [email protected] wrote:

> >     * Subject: Re: [tomsrtbt] Where is losetup?
> >     * From: Tom Oehser <[email protected]>
> >     * Date: Thu, 4 Oct 2001 20:57:58 -0400 (EDT)
> >
> >It is a documentation error and changelog error, it seems, since it is not
> >there.  Do you really need it, and why?  My inclination is to just put a
> >libc5 losetup on the add-ons sites.  Losetup is _not_ needed to make and
> >to use loop filesystems- only to make them encrypted or use an offset...
> 
> Exactly. I've only managed to make a copy of the whole hard disc just
> before it stopped to response. Unfortunately I don't have enough place
> to split the large file into partitions, that's why I needed losetup to
> be able to mount them.

Actually, I don't need losetup, because I have noticed that something I have
read somewhere else, works in tomsrtbt 2.0.103:

	mount -o loop,offset=xxxx ....

But loop isn't documented in the mount manual page.
Maybe there are also options for other things losetup can do?

There seems to exist a problem with loop in 2.0.103:
----------------------------------------------------
(/dev/hdb has FAT16)

 /# mount /dev/hdb1 /mnt
 VFS: Can't find an ext3 filesystem on dev ide0(3,65).

 /# mount -oloop /mnt/rescue/tom20103/raw/tom20103.raw /fl
 /# umount /fl

 /# umount /mnt
 umount: /dev/hdb1: device is busy
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
...
While rebooting:

 Trace/breakpoint trap
 Trace/breakpoint trap
 umount: /dev/hdb1: device is busy
 Please stand by while rebooting the system.

I have also noticed I can't mount and unmount the image more than 4 times
without creating new loop devices.

Regards
Guentcho