Eth0 is missing

[Gideon2]

Encountered missing eth0 from my Ubuntu Server after changing hostname.

changed the following

/etc/hosts
/etc/hostname

both via sudo vim

rebooted the server -> sudo shutdown -r now

after rebooting tried to restart the network

>sudo /etc/init.d/networking restart

encountered error

"cannot read interface file"

checked the file, the owner and access are ok...

still cannot see eth0 after executing ifconfig eth0

[HermanAB]

Have a look in /etc/udev/rules.d/ and fix the persistent network rules file?

[viperce]

nano /etc/udev/rules.d/70-persistent-net.rules

remove interfaces reboot it should re detect the interface card as eth0

[Gideon2]

nano /etc/udev/rules.d/70-persistent-net.rules

remove interfaces reboot it should re detect the interface card as eth0

Where do I remove the interfaces reboot?

[Gideon2]

Have a look in /etc/udev/rules.d/ and fix the persistent network rules file?

I just did.

I tried to swap the eth0 and eth1...

but, same error when executing the command > sudo /etc/init.d/networking restart

"cannot read interface file", even though I have root account.

[Azdour]

Hi,

With the error "cannot read interface file" is any part of the error that gives a line number, could it be a problem in reading the contents? Could you post the contents of /etc/network/interfaces.