> > I get this error when booting. While it goes on to boot after the ide0
> > reset, I want to know what it means and if it is anything serious?
>
> <snipped errors>
>
> It means the HD is encountering lots of CRC (read) errors.
>
> As for serious - could be that it's dying, yes.
> That's actually the most likely scenario.
>
> Run a HD test proggie on it (which will stress it even more), but FIRST
> be sure to backup anything and everything that's important!
>
> Also, if the drive has SMART, emerge "smartmontools" and check the
> values - it can tell you the exact number of errors the drive has
> encountered, and how often these have occurred.

This is good advice. And check your IDE cables. CRC errors are often
due to bad or mis-seated cables.