When Ubuntu Server restarts eth0 Doesn't come back up

Question

in a JSP page I want to call a javascript function. But when I call it inside a "a" tag it isn't hit. But when I put an "onload" parameter in the "body" tag as follows, onload="" the function I called inside < a > tag is hit. Can anybody explain this situation please.

Solution 1

Joel, add a line with auto eth0 before the iface eth0 inet static line, that should bring it up on boot.

Solution 2

I had, and solved, a similar problem--perhaps my solution will work for you. The problem in my case was that in /etc/network/interfaces I had both eth0 and vin to auto as shown below:

# The primary network interface
auto eth0
iface eth0 inet dhcp

# The INside Virtual Network
auto vin
iface vin inet dhcp
bridge_ports eth0
bridge_stp off
bridge_fd 0
bridge_maxwait 0

After I commented out the first line, changing it to

#auto vin

the eth0 worked.

Solution 3

Well, as it says, it could not find /run/network. That's why it doesn't start with /etc/init.d/networking start

I have the same problem, just a few days ago and still trace the failure since the directory gets destroyed every reboot.

If you simply create the /run/network directory you'll be able to start the network with a configured ethX but you'll lose it again next reboot. I haven't figured out what service is so persistent to destroy my work every time. Try it, creating a directory can't hurt too much.

Solution 4

found a link with the answer.

It seems the move from /var/run to /run did not work during the upgrade process.

I fixed with this:

cd /var mv run _run ln -s /run .

View more solutions

Comments

[Billy Moon]

please post your code...

[SpamapS]

Hi Joel, there was a change made in 11.10 to make sure that the system doesn't go into runlevel 2 before all interfaces have come up. Can you add to the question the output of ls -lR /run/network ? Thanks!

[Admin]

I have the same problem, upgrade to 11.10 and eth0 does not start

[Andrew D.]

This definition of Anchor is invalid. HREF must not have javascript code. More valid definition is: <a href="#" onclick="javascript:mufunction('hello-world');return false;">Click Me</a> for an example.

[kkonevets]

SpamapS, the command didn't run..joel@Snoopy:/etc/network$ sudo ls -lR /run/network ls: cannot access /run/network: No such file or directory.... then i deleted the /network and it ran but the output was too long to paste here.

[deej]

If you run "sudo ifconfig eth0 up" when you log in on console, it brings up the interface? Can you grep for eth0 in /var/log/syslog or dmesg and paste any interesting output that you get?

[Chad Harrison]

@deej +1, fixed me up.

[Mahesh]

Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference.

[bseibold]

It's not that anyone or anything is deleting your directory. /run is usually stored in RAM (filesystem type tmpfs) so it isn't persistent over reboots.

[sws]

I'd commented this out after configuring an Ubuntu 14.04 VM; uncommented this, and it worked great. Thanks!

[Wayne_Yux]

Welcome to Ask Ubuntu! Your answer while possible may be a bit late as the OP already accepted the other answer. Your help is of course appreciated, however you might be better served by focusing your efforts on the unanswered questions