> ...  Use dd to copy the data from your old disk (the raw device)
> to one or more big files on the new disk.  ...  Then use grep,
> string, and other Unix tools to find the useful parts of the data.


Seems like it'd be simpler to scan the hosed disk looking for
likely starting points of the lost filesystems, and then just
dd raw data (starting from those starting points) into huge
temporary partitions on another disk.  In other words, if you
knew the largest missing partition was 1Gb you'd create (say)
a 2Gb temporary partition on another disk; when you'd located
a possible starting block for one of the missing partitions
on the hosed disk you'd dd (say) 1.2Gb starting from there
into the temporary partition.  Then try fscking the temporary
partition - if it fscks, try mounting it and see what you find.
If no joy, search for another possible starting block on the
hosed disk and try again.  Lather, rinse, repeat...

  --Michael


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