fast boot

[thufir]

On Sat, 10 Aug 2013 15:10:55 +0530, Nandan Appajappa wrote:

> Hi thufir,
> 
>      The boot chart is showing the link eth0 receiving
> the lease from your dhcp server.
> 
>      The file /etc/network/interfaces may contain following
> lines:
> 
> auto eth0 iface eth0 inet dhcp
> 
>      which has configuration to receive the lease for link eth0
>      [ethernet]
> from dhcp before your any gui components are loaded.
> 
> Possible speedup can be achieved if these lines are commented.
> 
> -Nandan


Well, that's exactly it.  Out of the box, 12.04LTS (for me) doesn't 
acquire DHCP during boot:

thufir at dur:~$ 
thufir at dur:~$ cat /etc/network/interfaces 
auto lo
iface lo inet loopback

thufir at dur:~$ 



so, what "magic" (or program) is doing the DHCP lease?  I see the up/down 
arrows when there's a connection and radio waves animation (hope that 
makes sense) when there's no "internet" connection.

If that's commented out, then why is DHCP acquisition showing up in 
dmesg?  I don't get it.


thanks,

Thufir