LinuxQuestions.org

LinuxQuestions.org (/questions/)
-   Linux - Networking (http://www.linuxquestions.org/questions/linux-networking-3/)
-   -   how to bring network up at boot time in linux (http://www.linuxquestions.org/questions/linux-networking-3/how-to-bring-network-up-at-boot-time-in-linux-4175436955/)

Aymen 11-13-2012 10:53 AM

how to bring network up at boot time in linux
 
Hi,

I am working on an embedded linux system, my aim is to activate ethernet interface at boot time. I am using u-boot as bootloader. I passed ip=169.254.1.1:::255.255.255.0:Eddy:eth0:off and eth=00:05:F4:11:22:33 u-boot environment variables to the linux kernel as bootargs and configured linux kernel as IP:kernel level autoconfiguration , enabled. However, that didn't bring the network interface up, as "ifconfig eth0 up" do.

So, I am wondering if it is possible to instruct linux kernel to configure and activate eth0 interface without resorting to user space scripts (ifup and ifconfig)?

MensaWater 11-13-2012 11:30 AM

Are you considering init scripts as "user space" scripts? These are run at boot time and generally what are used to start up networking by default. (e.g. /etc/init.d/network on RedHat derived distros is linked to /etc/rc?.d for the various run levels where you'd want to start networking automatically.

Aymen 11-14-2012 02:36 AM

Currently I am making ethernet configuration and activation in init script. To me this is not sufficient as I want to have networking ready asap. Ethernet setup relatively takes a long time about 3s, so I want to start this operation earlier.
I am not using any of the autoconfiguration protocols: bootp, dhcp or rarp. Also, I am using ramdisk (not nfs) and macb.c driver.

jefro 11-14-2012 02:25 PM

Would any type of pxe or gpxe do?


All times are GMT -5. The time now is 03:09 PM.