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Re: Sudo Failed

Subject: Re: Sudo Failed
From: "J.Markoll"
Date: Thu, 05 Jan 2006 18:24:14 +0100
Old Rocker a écrit :
When I try to do an update on my apt-get repositories, this is what I get:

$ sudo apt-get update
sudo: unable to lookup ubuntu via gethostbyname()

and when I click on Synaptic this is the error message that pops up:

Su returned with an error

Rebooting doesn't fix it, nor using other applications and seeing if its fixed, for instance the same message pops up when I use aptitude and not apt-get.

Something's happened along the way to change things (permissions or corruption) but I don't know exactly what.

Anyone know how to deal with this, and is reinstallation the only way?
I never had to deal with this message error, but I heard about it.
Did you happen to do any research on the web ? I just put 'unable to lookup ubuntu via gethostbyname' and it appears that many links are available under this search motor.
Did you look if your machine is well declared in /etc/hosts file ?
You should have a line such as this one
127.0.0.1 localhost.localdomain localhost <machine_name>

(but not <Machine_name> either and small letters in /etc/hostname too)

Just incase, is there a /var/lib/apt/lists/lock file ? if yes, remove it. It can happen to have one when Synaptic is openened and trying to 'apt-get' in the console at same time. Save that your message error is probably due to another cause.

Try not to reinstall as long as you don't know where a problem comes from or you might get the same problem coming back very soon, thus use lots of time installing and configuring all again and again.

After I read three thread, I remember now, I had the same message error when I started on a Debian first time, just before the first Ubuntu came out :)
(And this /etc/hosts diagnostic solved it)
Maybe we should checkout the bugs around the subject on the Louchpad ?
Best greetings, Joyce Markoll.



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