Re: [dm-devel] dmsetup on uClibc based system

[Pete Flugstad <peteflugstad mchsi com>]

Kevin Corry wrote:
> > Actually, it does matter. You won't be able to activate a DM device on a
> > partition that contains a mounted filesystem (2.6 kernels don't allow
> > that).
>
>
> To be more specific...
>
> You can create the DM device, because device creation in DM doesn't 
> necessarily imply that the device contains an active mapping. What you cannot 
> do (on 2.6 kernels) is load a table into that device that uses a partition 
> with a mounted filesystem.
>
> Thus, the creation portion of your command worked, but the table-loading 
> portion failed, which is why you see hdc5.000 in "dmsetup ls".

Can this behavior be disabled, or forced, if the DM device is created 
read-only?  Or is it too deeply embedded in the kernel?

Thanks,
Pete