On Mon, Mar 16, 2009 at 04:57:07PM -0400, Jeremy Katz wrote:
> On Monday, March 16 2009, Joel Granados Moreno said:
> > +def zeroLvmMetadata(device):
> > + """ This dds from byte 513 to 200Mb+513 of the disk.
> > +
> > + We assume that lvm has nothing to do with the first 512 bytes.
> > + We assume that 200Mb is enough. My tests failed with 100Mb for
> > + some unknown reason.
> > + """
> > + try:
> > + fd = os.open(device, os.O_WRONLY)
> > + os.lseek(fd, 513, os.SEEK_SET)
> > + for i in range(200):
> > + os.write(fd, "\0"*1024)
> > + os.close(fd)
> > + except:
> > + raise LVMError("Falied to zero LVM data on %s." % device)
>
> While maybe not a common case, this will traceback if the disk/partition
> is < 200 megs in size.
Yep, you are right. I will handle the specific errno == 28 for this
case.
>
> Jeremy
>
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--
Joel Andres Granados
Brno, Czech Republic, Red Hat.
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