I knew about and used ifup (the device is wlan0). It did not solve the problem.
Malcolm ----- Original Message ----- From: "zxq9" <z...@zxq9.com> To: scientific-linux-us...@fnal.gov Sent: Tuesday, 17 July, 2012 11:02:38 AM Subject: Re: X11 server won't start after yum upgrade On 07/17/2012 05:41 PM, Malcolm MacCallum wrote: > I could boot up to the screen saying 'Scientific Linux 6' and then get a shell > (by CTRL-ALT-F2) and log in. Thus I got to runlevel 3 with no network > connection. > My problem was how to then get to a state where I could run yum with remote > repos. > > I have solved my problem by downloading the relevant rpm files to my > Windows partition and running rpm with suitable arguments, so I am now > back to a fully functioning SL with Gnome etc. But it would still have > been nice to have instructions that worked 'out of the box'. I think you were looking for "ifup". A lot of folks don't do the command-line networking thing these days, but just in case you need this in the future: If you have a network configuration defined in /etc/sysconfig/network-scripts/ifcfg-$name then you can use the command "ifup" and "ifdown" to start and stop the device as configured in the ifcfg file. I (and nearly everyone else) has a file called ifcfg-eth0. This is (one way) I can start a networking device as configured in that script: ifup eth0 Some people (especially folks with lots of wireless homes) have a vairety of configuration files, so the one you want might not be "eth0", but I think you get the idea.