Select the Choose A Mirror Of The Ubuntu Archive option from the expanded Main Menu. It should allow you to set up a connection to the mirror of your choice. Before you continue, review the list of available mirrors at https:/ / wiki.ubuntu.com/Mirrors. Generally, a mirror geographically close to you is best, but the wiki does not include other relevant information such as the connection speed between the mirror and the Internet. (For my own system, since I'm geographically close to the kernel.org mirrors, and they're pretty fast, I often select http://mirrors.kernel.org/ubuntu/.)
NOTE The standard mirror associated with each nation might not be best for everyone in that country; for example, when I tried to trace the route to the supposedly US-based Ubuntu mirror (us.archive.ubuntu.com), it connected me to a mirror in the UK. For more information on selecting a repository, see Chapter 8.
After selecting the noted option, take the following steps:
1. Select a protocol for file downloads; the Ubuntu installer supports access to mirrors via HTTP or FTP. Make a selection and press enter to continue.
2. A default mirror is associated with each country on the list. However, if you have a custom mirror, scroll to the top of the list and select Enter Information Manually. Make your choice and press enter to continue.
3. If you've selected Enter Information Manually, specify the URL to the hostname of the desired Ubuntu Archive Mirror. (Since the protocol was selected in step 1, I just enter the plain URL, without any directories-that's mirrors.kernel.org.) Type in the desired mirror and press tab to highlight Continue. Press enter to continue.
4. Enter the directory of the desired mirror with the Ubuntu repository files. In most cases, it's / ubuntu/, and that directory is normally entered by default. If in doubt, check the URL for yourself in an appropriate browser. Type in the desired entry, and press enter to continue.
5. Enter any required proxy server information—if a proxy this server regulates access from your network, enter the required information in the format (http://[[user][:pass]@]host[:pass]/), where pass = password, host = hostname of proxy server, and port is the port number of the proxy server, if it's something other than the default, 3128:.
If no proxy server regulates access from your network to the Internet, leave this entry blank. Make any required proxy server access information and press enter to continue.
When these steps are successful, information is downloaded from the selected mirror. Be aware, this process may take several minutes and depends on the speed of the Internet connection. You're then returned to the expanded Main Menu.
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