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Re: 4000GB partition becoming 1801GB after reboot?

From: Håkon Løvdal
Subject: Re: 4000GB partition becoming 1801GB after reboot?
Date: Sun, 2 Nov 2008 16:04:47 +0100

2008/11/2 Isolationism <address@hidden>:

> Number  Start   End     Size    Type     File system  Flags
>  1      32.3kB  1801GB  1801GB  primary  xfs
> (Another smaller 1600GB partition on the same controller shows up fine).
> I really don't know what I'm doing here, but I am afraid this is going to
> have to do with some 2TB limit thing, although I'm not sure why if I was able
> to create the 4000GB partition the first time around.
> I would really, desperately like to be able to somehow recover the contents
> of the partition, but this looks pretty grim. Is there any way to restore the
> partition to its original, correct size -- even if only temporarily, so that
> the data can be rescued -- without obliterating all of the data from the
> device? Any help would be very greatly appreciated.

If you had just one partition that filled the whole disk, this should be
not difficult to recreate.

To recreate a partition that have gone missing or been destroyed it has to
start at the exact same sector that it was originally created. Ideally
it should also
end at the same sector, although the partition could also be made
bigger than the
original as long as it is not entering any following partition.

The start/end numbers above are not exact sector numbers so I would like to
have some more information. Could you run parted and print the complete
partition table using units s, cyl and chs? The two latter units can
be calculated
from the sector number, but it is much easier to let the computer do it :)

Also I would like to see the raw content of the partition table. Could
you run fdisk
with commands "x" and "p" to print the raw partition?

BR Håkon Løvdal

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