> > I have installed the SL-5 on this laptop. Everything 
> > seems to work fine except that I am unable to Hibernate
> > the machine. It gives the error 'end_request: 
> > I/O error, dev sda, sector xxxxxxxxx' 
> 
> Sounds like a disk error.

NO, NO, NO! It is *not* a disk error! Please read for a possible fix:

http://beranger.org/index.php?page=diary&2007/10/17/06/29/10-victor
y-rhel5-clones-how-hibernate

http://bugs.centos.org/bug_view_page.php?bug_id=2381

Hope it helps. Mailing lists and bug reports of CentOS, SL, StartCom and
X/OS *should* be joined somehow, otherwise people will keep asking the sa
me
question in several different places.

Cheers,
Beranger