[CentOS] How can I set NIC duplex before installation?

Barry Brimer lists at brimer.org
Mon Jun 25 23:08:35 UTC 2007

> My question is, how can I tell anaconda to set the NIC interface options
> such as speed and duplex? I have another server to install which has 2 x
> gigabit NICs and 2 x 100MB NIC's. My concern is that anaconda will again
> use wrong NIC parameters, and the installation will again be very slow.
> Surely it is possible to set the NIC options?

On the boot line, use the following to set your first ethernet interface to use
100Mb/s full-duplex ethernet:

eth0_ethtool="autoneg=off speed=100 duplex=full"


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