On Wed, 18 Aug 2010, Hannes Frederic Sowa wrote:
To: CentOS mailing list <centos@xxxxxxxxxx>
From: Hannes Frederic Sowa <hannes@xxxxxxxxxxxxxx>
Subject: Re: SDA and HDA
On Wed, Aug 18, 2010 at 1:23 AM, Matt <lm7812@xxxxxxxxx> wrote:
With the default settings in my Supermicro motherboard CentOS calls my
SATA drive /dev/hda. If in bios setup I change 'Native Mode
Operation' from auto to 'Serial ATA' it boots up calling the drive
/dev/sda. I keep thinking its likely better under /dev/sda not? Any
problem switching it to that after install?
If you have setup lvm and use labels for mounting your filesystem, the
change should be hassle free. Otherwise you have to check grub.conf
for the root parameter and change blockdevices in /etc/fstab.
I don't use LVM yet, but I found that using hard-coded
/dev/sda?? or /dev/hda?? in /etc/fstab is not recommended.
If LVM supports them, partition labels are the way to go.
/dev/?da?? get screwed up if you create or destroy
partitions. Whereas labels don't care about the actual
device name in question.
From my etc/fstab file:
##########################################################################
# device sda - PRIMARY MASTER - BOTTOM BAY 4
##########################################################################
LABEL=Fedora-12-root / ext3 defaults 1 1
#/dev/sda5
LABEL=home /home ext3 defaults 1 2
# dev/sda6
LABEL=other-docs /mnt/other-docs ext3 rw,noauto,noexec,user 0 0
# dev/sda7
LABEL=tmp /tmp ext3 defaults 1 2
HTH
Keith Roberts
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