4.1.21 pause during boot: A start job is running for LSB: Raise network interf...

[Matt99eo]

Why does the kernel pause for a will (10s) while booting.  I see the pause in line noted in red below.  Something to to with phy 4a101000?

r   10.287710] net eth0: initializing cpsw version 1.12 (0)
[   10.295460] net eth0: phy found : id is : 0x7c0f1
[   10.300245] libphy: PHY 4a101000.mdio:01 not found
[   10.305086] net eth0: phy 4a101000.mdio:01 not found on slave 1
[   10.315002] net eth0: BQL enabled
[   10.322353] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[****] A start job is running for LSB: Raise network interf...31s /  limit)[   37.822466] random: nonblocking pool is initialized

[Rick Mann]

If there's no Ethernet connected, it will pause there for a long time. I think it's looking for DHCP. It's possible to configure this to skip this at boot and support hot-plug, but the distro is (IMHO unfortunately) not configured this way.



--
Rick Mann
rm...@latencyzero.com

[Matt99eo]

Bump.

Anybody found a good fix for this?  I am now in 4.4 land and it seams to hang even longer....  Quite annoying.  I don't use eth0 as my devices talk over a cellular network...

[Robert Nelson]

On Wed, Aug 3, 2016 at 1:46 PM, Matt99eo
<matt.mahe...@hydro-care.com> wrote:
> Bump.
>
> Anybody found a good fix for this? I am now in 4.4 land and it seams to
> hang even longer.... Quite annoying. I don't use eth0 as my devices talk
> over a cellular network...

make sure eth0 is not defined in /etc/network/interfaces

Regards,


--
Robert Nelson
https://rcn-ee.com/

[Matt99eo]

Did that.  All lines in /etc/network/interfaces are commented out.  Still getting the LSB 

Here is a screenshot:

Is it because the it because it find the eth0 phy but and is trying to give a IPv6?

[William Hermans]

You can disable ipv6 at the kernel level.

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[William Hermans]

william@beaglebone:~$ cat /boot/uEnv.txt | grep ipv6
#cmdline=coherent_pool=1M quiet cape_universal=enable ipv6.disable=1
cmdline=ipv6.disable=1