[GRLUG] "network is unreachable"

[Bob Kline]

On Thu, Feb 11, 2010 at 1:03 PM, <donlumber at comcast.net> wrote:

>
> ----- Original Message -----
> From: "Bob Kline" <bob.kline at gmail.com>
> To: grlug at grlug.org
> Sent: Wednesday, February 10, 2010 10:03:18 PM GMT -05:00 US/Canada Eastern
> Subject: [GRLUG] "network is unreachable"
>
> I somehow managed to hose the
> Ethernet connect on a laptop running
> Ubuntu 9.10.  The bottom line is that
> when I try to ping an outside URL I get
> "network is unreachable."  I've done
> some searching on the Internet for
> this, but so far nothing clicks.
>
> Some relevant things:
>
> *  ifconfig shows that eth0, lo, and wan0
>    are gone, so I set them all to "up."
>
> * /etc/resolv.conf looks OK.
>
> * I can ping 127.0.0.1, but nothing outside.
>
> * "/sbin/dhclient wlan0" was not running,
>   so I started it.
>
> *  I've done other A-B comparisons with
>    a machine also running Ubuntu 9.10,
>   and has a working eth0 port, but so far
>   nothing has shown me the key thing
>   that is missing.
>
> One suggestion on the Internet was to
> use dhcpcd, but I don't have it installed,
> and can't do it now.  The machine does
> not have a CDROM unit, and of course I
> don't have Internet access.....
>
> Does this much suggest anything to try
> to anyone?  I've power cycled, but some
> software might be missing, and when
> I come back up I have to run ifconfig again
> to set things up.
>
>    -- Bob
>
>
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>
>
>
> Have you tried removing */etc/udev/rules.d/70-persistent-net.rules ?
> *
>
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Sure haven't.  Never heard of it.

What would that do?

   -- Bob
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