multiple entries per inferface in /etc/network/interfaces

Volumio Development Bug reports
1

Hey,

I’m currently using Volumio 2.031 on a Rpi2 with a RT5370 wireless dongle. It always took very long to boot an I tried to figure out why.
Looking at the console log, I noticed that the boot process always stalls at:

A start job is running for LSB: Raise network interfaces

After googling a bit, I found the reason. Configuring network via WebUI produces the following /etc/network/interfaces:

[code]auto wlan0
auto lo
iface lo inet loopback

auto eth0
allow-hotplug eth0
iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet manual[/code]
After commenting out the ‘auto wlan0’ and ‘auto eth0’ lines, bootup works fast and without errors.
So all in all I think the network configuration should remove the ‘auto *’ (except for ‘lo’) and only set ‘allow-hotplug’.

On a side note: wlan0 is set to manual, although I use dhcp, but I didn’t change that line since the interface seems to come up fine…

Greetings
Zapp!

2

We’re aware of this, we did not remove the auto statements because we need them to set up NAT (for webui to work properly).
It’s on our todo list…

3

OK, thanks for your quick reply!

4

Interesting bit: not sure I understand why webUI needs NATing.
Asking because NAT-thing may also hamper DNS resolution in some cases with some ISP routers…
Just trying to understand a bit more the situation, as several issues may very-well be linked actually.
Thanks.

5

Also on RPi Zero there is no eth0, so i am forced to boot up on RPi 2 to comment “auto eth0” ,and after it boots succesfully on RPi Zero.