Messages in this thread | | | From | David Balazic <> | Subject | RE: Disk copy, last sector problem | Date | Thu, 24 Jun 2004 09:32:28 +0200 |
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> From: Andries Brouwer[SMTP:aebr@win.tue.nl] > > On Tue, Jun 22, 2004 at 09:52:54AM -0700, Philippe Troin wrote: > > David Balazic <david.balazic@hermes.si> writes: > > > > > Hi! > > > > > > cat /dev/hda > /dev/hdc > > > > > > This would not copy the entire disk as expected, but miss the last > sector if > > > the number of > > > sectors on hda is odd. ( I used "cat" becasue it has the simplest > syntax, > > > "dd" and other behave the same ). > > > Has this been fixed recently ? > > > What about suppport of other sectors sizes, like 8kb ? > > > > Have you tried setting the device block size to its sector size? > > > > blockdev --setbsz $(blockdev --getss /dev/...) /dev/... > > If I understand correctly David is not reporting a problem, but > vaguely recalls that there was a problem in this area long ago, > and asks whet the current status is. > > (Yes, today things are better, but not perfect yet :-)) > So the copy will still miss the last sector ? But the blockdev command is a working workaround ? Are there any downsides of setting the block size to 512 bytes right at boot for all hard drives ? What about 8kb sectors, do they work ?
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