[SOLVED] My LFS doesn't connect to the internet by itself on the boot-up

giuliom_95 · 04-06-2013, 09:59 AM

I get this error during the boot-up of my LFS 7.2 machine (line copied from /var/log/boot.log):

Code:

Apr 06 17:59:39 +02:00 localhost  Bringing up the eth0 interface... skipped

It does not connect to the internet interface in the boot-up so I must bring it up as root after logging in (that's very annoying!). For debugging I've read the /etc/rc.d/rc3.d/S20network file, an default boot script provided by the LFS community for their book:

Code:

   start)
      # Start all network interfaces
      for file in /etc/sysconfig/ifconfig.*
      do
         interface=${file##*/ifconfig.}

         # Skip if $file is * (because nothing was found)
         if [ "${interface}" = "*" ]
         then
            continue
         fi

         /sbin/ifup ${interface}
      done
      ;;

So, I've supposed that it doesn't find the /etc/sysconfig/ifconfig.eth0 file but it exist because I write it by myself and it works because, as I've said before, I can connect to the internet by typing "ifup eth0" as root after logging in!
What's wrong?

Keith Hedger · 04-06-2013, 11:30 AM

What do you get if after logging in you use the start up script ie

Code:

/etc/rc.d/init.d/network start

Does this bring it up? if not it looks like the script is not being run, the exec bit may not be set the symlink may be bad etc.

giuliom_95 · 04-06-2013, 11:36 AM

Here's the output:

Code:

[root@localhost giulio]# ifdown eth0
  *  Removing IPv4 address 192.168.1.2 from the eth0 interface...                                                          [  OK  ]
  *  Bringing down the eth0 interface...                                                                                   [  OK  ]
[root@localhost giulio]# /etc/rc.d/init.d/network start
     Bringing up the eth0 interface... 
  *  Adding IPv4 address 192.168.1.2 to the eth0 interface...                                                              [  OK  ]
  *  Setting up default gateway...                                                                                         [  OK  ]

I've brought down the interface first for simulating boot-up conditions...

Keith Hedger · 04-06-2013, 11:46 AM

As the script when called directly starts fine and brings up the interface it's probably a symlink problem you may not have a symlink in the right place at the right run mode check to make sure that the symlink is ok and not broken.

What is your default runmode set to? it will be in the inittab.

giuliom_95 · 04-06-2013, 11:53 AM

My default runlevel is 3. There is a symlink called S20network that points to /etc/rc.d/init.d/network script

Keith Hedger · 04-06-2013, 12:02 PM

Do a reboot and post the output of

Code:

ifconfig

BEFORE manually bringing up the network

giuliom_95 · 04-06-2013, 12:24 PM

Well, that's look very strange... it seems that there isn't a command called 'ifconfig'! Maybe I miss a package?

spiky0011 · 04-06-2013, 12:38 PM

Hi

Ifconfig is part of blfs
http://www.linuxfromscratch.org/blfs...net-tools.html

Hi Keith

Keith Hedger · 04-06-2013, 01:06 PM

Hi Spiky

Sorry forgot to say that you may have to install it!

giuliom_95 · 04-07-2013, 06:14 AM

Here's the output:

Code:

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 16436  metric 1
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Keith Hedger · 04-07-2013, 06:29 AM

Looks a bit odd, can't say why, but definitely no eth0, so for some reason I still think the network script is not being run, do you have a single partition with lfs on it? I mean do you have /usr /etc on different partitions?
As a work around you could just tack the command to bring up the network into /etc/init.d/rc somewhere but obviously it would be best to find out why the script is not running/failing.
Can't think of anything else to suggest at the moment, sorry

stoat · 04-07-2013, 08:20 AM

Quote:

Originally Posted by giuliom_95

I get this error during the boot-up of my LFS 7.2 machine (line copied from /var/log/boot.log):

Code:

Apr 06 17:59:39 +02:00 localhost  Bringing up the eth0 interface... skipped

Quote:

Originally Posted by giuliom_95

I can connect to the internet by typing "ifup eth0" as root after logging in!

Maybe your ifconfig.eth0 file has ONBOOT=no. The following is from /sbin/ifup...

Code:

# Do not process this service if started by boot, and ONBOOT
# is not set to yes
if [ "${IN_BOOT}" = "1" -a "${ONBOOT}" != "yes" ]; then
   log_info_msg2 "skipped"
   exit 0
fi

Anyway, it fits the described problem. No harm looking.

giuliom_95 · 04-07-2013, 02:18 PM

Ops... sorry this great fuss over nothing. Thanks stoat!