Dear list,

after an incorrect power-off of my FreeBSD system, it does not boot any more, BTX stops even before showing the cute beastie menu. Starting the machine by other means, I found that the hard-drive is installed on has bad sectors. I am looking for advices on how to recover from this, if possible.


Basically the question is: shall I discard my hard-drive with bad- sectors, or can I continue using it?

The Linux system I use to diagnose this says:

hdb: media error (bad sector): status=0x51 { DriveReady SeekComplete Error }
  hdb: media error (bad sector): error=0x30 { LastFailedSense=0x03 }
  ...
  Buffer I/O error on device hdb, logical block 1663200

etc.

Since I use computers (1992) these are my first bad sectors :) (on hard drives, taking floppies into account is no fun!). I hence have several questions:
  -- is it possible to let these sectors?
  -- to which extents a hard-drive with bad sectors is usable?
-- while the apparition of these bad sectors coincide with an incorrect power-off, are the two events related? The machine suffered plenty improper power-offs (or many), in the last years and did not react so badly!
--
Thank you in advance for your advices,
Michaël_______________________________________________
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