Eternity wrote:
> Hi!
> 
> I have a problem with a whole bunch of NET5501:s. I have read some posts 
> with similar problems, but not exactly this, I think, so I post my 
> problem:
> 
> On a Cold boot my CF Card is detected:
> 
> Pri Mas  CF CARD 1GB                     LBA Xlt 983-32-63  990 Mbyte
> 
> Then at boot:
> 
> GRUB Loading stage1.5.
> 
> GRUB loading, please wait...
> Error 25
> 
> ---
> 
> If I press ctrl-p, and at once in combios makes a "reboot" everything 
> works OK, and GRUB can load correctly.
> 
> I have used lots of net5501 boxes with this distribution (same image file 
> I write to the CF card) without any trouble at all. I have tried upgrading
> BIOS to 1.33c version, but no change.
> 
> Any ideas? Could it be the flash card? Or some defect on these batch of
> boards?
> 
It could be the flash or a defective board.  If you have a known working 
  unit, try swapping the flash into it and see if you get the same 
error.  If another known working unit does the same thing, you probably 
have one of the 5501 boards with issues (RMA to resolve).  If the error 
persists, it's probably bad CF.  One other possibility... Did you image 
the CF or do the install from a different system?  If you did, there are 
often disk geometry issues in the install, which can and often do cause 
issues, esp with boot loaders.  The only safe way to make sure the 
geometry is correct on a load is to load on the exact same type of 
system (so in this case, another 5501).

Grub manual error code link: 
http://www.gnu.org/software/grub/manual/grub.html#Stage1_002e5-errors

According to the grub manual Error 25 in stage 1.5 is...

25 : Disk read error
     This error is returned if there is a disk read error when trying to 
probe or read data from a particular disk.
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