On Thu, Nov 5, 2009 at 8:39 PM, Ryan Wagoner <rswagoner at gmail.com> wrote: > Edit /etc/grub.conf and add elevator=deadline to the end of the kernel > line. For example > > title CentOS (2.6.18-128.4.1.el5) > root (hd0,0) > kernel /vmlinuz-2.6.18-128.4.1.el5 ro root=LABEL=/ elevator=deadline > initrd /initrd-2.6.18-128.4.1.el5.img > doesn't work if you only want it on one of several drives. Your own /etc/init.d script or adding to rc.local.