Ttgjyuk

I'm running Ubuntu 12.04 Server (guest machine) on VirtualBox having Windows 7 as host machine.
I tried to get updates through sudo apt-get update command but i end-up with the following error codes :-

Err http://in.archive.ubuntu.com precise Release.gpg
 Temporary failure resolving 'in.archive.ubuntu.com'
Err http://security.ubuntu.com precise-security Release.gpg
 Temporary failure resolving 'security.ubuntu.com'
Err http://in.archive.ubuntu.com precise-updates Release.gpg
 Temporary failure resolving 'in.archive.ubuntu.com'
Err http://in.archive.ubuntu.com precise-backports Release.gpg
 Temporary failure resolving 'in.archive.ubuntu.com'
Reading package lists... Done
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise/Release.gpg
 Temporary failure resolving 'in.archive.ubuntu.com'

W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise-updates/Release.gpg
 Temporary failure resolving 'in.archive.ubuntu.com'

W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/precise-backports/Release.gpg
 Temporary failure resolving 'in.archive.ubuntu.com'

W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/precise-security/Release.gpg
 Temporary failure resolving 'security.ubuntu.com'

W: Some index files failed to download. They have been ignored, or old ones used instead.

I also tried the following things :-

1) Deleted the Virtual VM & installed it again.

2) Changed Network Adapter right from Host-Only to Briged.

3) I used sudo apt-get autoremove/remove/clean commands which i get known while googling for the answer.

4) Editing the /etc/apt/sources.list file.

Please help me out because i want to do the updates & upgrades first before starting the other server things !!

Thanks in advance

It seems that you can`t able to access Ubuntu archives (in.archive.ubuntu.com). May be you are not connected to the Internet. Change the VirtualBox network adapter to NAT mode. Then try again. NAT enables the Guest OS to access the Internet.

Your issue is that something between your VM and the 'outside' (that is, outside your computer) is blocking connections to the internet.

You said you're using a Windows 7 host, and VirtualBox.

Some steps to check:

1. Make absolutely certain that your VM is set to either Bridged Mode (and linked to an actively-connected network adapter) or NAT.


2. Check your Windows firewall settings - check to see if the VirtualBox application is permitted to connect to the network on both Public and Private networks (this covers the Windows "Public", "Work", and "Home" network classes).


3. Specifically tell Windows to permit outbound connections from the VirtualBox applications and parts.

After step 3, check if the connection works going outbound - pinging 8.8.8.8 or trying a dig on google.com.