> 
> I set it up with only two partitions (/ and /usr beside, of course, 
> the swap partition).  Fsck often hangs in automatic mode when called 
> at boot-time and many files in the /usr partition are lost.  From 
> time to time it looses ld.so and other crucial files that disable 
> even logging in.
> 
> I wonder if this is a motherboard problem, because I already 
> reformated the volume with DOS and scanned the disk's surface against 
> error but found nothing.  If it is not and someone has already been 
> through it, please let me know your solution.

Check for bad memory. Do you get any other symptoms that would point
to this?

Check that you don't have overlapping partitions (say, the end of swap
and start of /usr). Do you see file data corruption as well as
directory/inode damage?

--
Dan.