[linux-lvm] file system larger than lv
Heinz J . Mauelshagen
mauelshagen at sistina.com
Mon Nov 18 09:30:02 UTC 2002
On Sat, Nov 16, 2002 at 02:59:42AM +0100, Ragnar Kjørstad wrote:
> > > Putting additional overloading block/filesystem layer services not necessarily
> > > needed there into the kernel is unlikely to be accepted either IMO.
> > No. No. Not in the kernel. I mean the user space tools can simply
> > check what data is on the block device (i.e. look for a known
> > signature of given filesystems) and see if it can determine if it is
> > indeed a filesystem.
> First of all it's not possible to detect if the device includes a valid
> filesystem. You can only check for know filesystems and I don't think it
> would be a good idea for lvm to include a list of filesystem-signatures.
> Second, reducing the size of a device is just as dangerous if there is
> something else (say a datbase) on that device.
> So, if anything, I think lvreduce should always warn the user that this
> is a dangerous operation.
And it does that since used by dinoaurs ;)
> Ragnar Kjørstad
> Big Storage
> linux-lvm mailing list
> linux-lvm at sistina.com
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
Heinz -- The LVM Guy --
*** Software bugs are stupid.
Nevertheless it needs not so stupid people to solve them ***
Heinz Mauelshagen Sistina Software Inc.
Senior Consultant/Developer Am Sonnenhang 11
Mauelshagen at Sistina.com +49 2626 141200
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