Re: [CentOS] SDA and HDA

At Sun, 22 Aug 2010 16:09:00 -0500 CentOS mailing list centos@centos.org wrote:

...

The only problems with switching after install is:

1. you need to be sure the initrd has the (proper) SATA kernel module(s)

in it.  If necessary, you'll have to use mkinitrd to re-create the initrd file to include the proper driver modules.

2. /etc/fstab needs to be fixed, either to use LABEL= (rather than

/dev/hdaN) and your file systems (including swap) need to have file sytem labels.  (LVM volumes won't be a problem.)

I changed it in bios to sata mode. Now after boot up it calls it sda instead of hda and disk I/O is much faster.

Yes, this is expected.

I see in this file:

# cat /boot/grub/device.map # this device map was generated by anaconda (hd0) /dev/hda

Should I change this too sda? It works and boots the way it is but just wandering?

Yes, definately!