apt-get update & upgrade not working

[adam17]

Hi,

I recently installed a Ubuntu Server 12.04LTS and have been having fun setting it up.

However on boot the system mentioned that it needed some updates and I was prompted to type. "sudo apt-get update" and "sudo apt-get upgrade" this all worked and all was fine it said all was completed.

But now when I try and use the "sudo apt-get install minidlna"command for example I get:

"Failed to fetch http://gb.archive.ubuntu.com/ubuntu/...ntu1_amd64.deb Temporary failure resolving ‘gb.archive.ubuntu.com’
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?"

I have read online that this can be to do with ISP however all worked fine until the "sudo apt-get upgrade"

Does anyone know how to fix this? Can I downgrade the apt-get function back to what it was on the original install?

Regards.

Adam

[wlraider70]

Sounds like a DNS problem. Check your /etc/resolv.conf file.
Can you ping 8.8.8.8 ?

[adam17]

Hi,

Yeah i can ping 8.8.8.8

Adam

[sandyd]

Hi,

Yeah i can ping 8.8.8.8

Adam

Can you post the output of

cat /etc/resolv.conf

Depending on your config, there are two things it can show.

Either, it will say it is managed by resolvconf, .etc .etc

In that case, add the line

dns-nameservers 8.8.8.8 8.8.4.4

to your main network interface in /etc/network/interfaces


If you are using DHCP and the file does have nameservers, but are incorrect, then this is a issue you should take up with the DHCP server that serves your network

Otherwise, if the file is blank, or has the wrong nameservers and you are using static interfaces, run

echo "nameserver 8.8.8.8" > /etc/resolv.conf
echo "nameserver 8.8.4.4" >> /etc/resolv.conf

[muttsnutman]

Can you post the output of

cat /etc/resolv.conf

Depending on your config, there are two things it can show.

Either, it will say it is managed by resolvconf, .etc .etc

In that case, add the line

dns-nameservers 8.8.8.8 8.8.4.4

to your main network interface in /etc/network/interfaces


If you are using DHCP and the file does have nameservers, but are incorrect, then this is a issue you should take up with the DHCP server that serves your network

Otherwise, if the file is blank, or has the wrong nameservers and you are using static interfaces, run

echo "nameserver 8.8.8.8" > /etc/resolv.conf
echo "nameserver 8.8.8.8" >> /etc/resolv.conf

Probably should be :

echo "nameserver 8.8.8.8" > /etc/resolv.conf
echo "nameserver 8.8.4.4" >> /etc/resolv.conf

to concatenate the second nameserver line... there is no point in entering the same nameserver address twice.

NickB