On Sat, Jun 20, 2015 at 12:38:56PM -0400, Zack Weinberg wrote:
> Either is possible. These are an identical pair of Western Digital
> drives and they're about five years old. They *claim* to have
> 512-byte physical sectors (per hdparm -I -- full dump at the bottom)
> but I would totally believe they are faking that.
I pulled the spec sheet for the drives; the copyright date is
2008-2009, so I suspect they are a bit older than five years. It does
claim to be a 512 byte physical sector drives. So it's possible the
comment about not being aligned is just in error.
> so, the
> computer's power supply failed catastrophically in the middle of a
> system upgrade, which is how the root filesystem got so very
> corrupted. That could certainly have caused physical damage. (The
> drives are currently attached to a different computer for data
> recovery.)
Or the disk could just be 6+ years old, and it's just too old. If I
were you I would just replace the hard drives and be done with it.
> In this case, that would have been cfdisk as of roughly 9 months ago,
> and I *think* the problem was it didn't know what to do with an MD
> device. Notice how the outer partitions start at offset 2048 but the
> inner partitions start at offset 63?
Or this was just the case where cfdisk didn't want to mess with a
prexisting partition table, and the original partition table as
shipped from the manufacturer was Windows XP compatible.
- Ted
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