Broadcom BCM57780 Enet broken in Lucid Studio

Turns out in my case running 'sudo dhclient eth0' configures the interface. I am using a wired interface. Not sure if this is holds true for others reporting in the other ticket.

Bottom line, there's something broken in the released Ubuntu STUDIO 10.04 distro.

Also, adding the following to '/etc/network/interfaces' brings the interface up on boot. However, I'm not sure this is the 'right' way to fix the problem since my other regular Lucid machines do no have this entry.

auto eth0
iface eth0 inet dhcp

none of the above is working,,,,,
    sudo dhclient eth0 didnt work it just showed something was being connected but nothing happened

/etc/network/interfaces : Permissions denied

Sudhir,

The assumption above with the 'sudo dhclient eth0' command is that your computer is connected to a network where there is a dhcp server present. Usually your network edge router device (e.g. DSL/cable modem, wireless router, etc.) provides this service if you connect to that device via Ethernet or wireless.

If you don't have a device on your network that serves dhcp addresses, then you will need to set up a fixed network address based on your network (IP address, netmask, gateway, etc). That can be done in '/etc/network/services'. From your last comment it looks like you had trouble editing that file. Use the sudo command to gain access to the file 'sudo <editor name> /etc/network/interfaces'. You'll have to google the specifics on setting that up.

If you set up a fixed IP address you'll also have to point to a name server in 'etc/resolve.conf'.