Re: [Linux-NTFS-Dev] Windows Dynamic Disks, Parted

[Szakacsits Szabolcs]

Hello,

On Sat, 4 Sep 2004, Andrew Clausen wrote:

> AFAIK, if you are using LDM, Windows pretty much ignores partition
> tables.  

Unfortunately it doesn't ignore it enough, not to cause problems if it 
were changed inadequately,

        http://lists.gnu.org/archive/html/bug-parted/2004-07/msg00099.html

> Windows still keeps a partition table just for some sort of backward
> compatability.

Something like that.
 
> If Parted sees that a partition table is a LDM disk (i.e. has a
> partition of type 0x42), should it simply refuse to recognize it?  i.e.
> say that it isn't a partition table.

Well, in the above email I wrote,

  "Partitioners must detect if one has a dynamic disk (it was designed to
  be very easy to detect) and refuse to progress or implement dynamic disk
  resizing."

But I've meant it in its context, namely non-destructive NTFS resizing.

General support is much more complex. You also have to think about cases
like:

    - user wants to get rid of windows dynamic partitions

    - user wants to fix spoiled windows dynamic partition entries

    - user wants to edit non-dynamic disk partition entries (I've thought
      it was impossible mixing windows dynamic partitons and basic 
      partitons but I've seen them working together)

    - perhaps other scenarios

So, refusing processing completely seems a bit too strong, although it's
definitely the safest and would stop thrashing people's setups, what I
think would be important (though it clearly wasn't as much important as
recent 1.6.12 and 1.6.13 parted releases, thanks for them!)

        Szaka