SOME FAILURES ON INSTALLING UBUNTU 14.04 OR 15.04 USING USB ISO INSTALLER

There are some possibility of failures that will be encountered during the installation of Ubuntu Server using USB iso installer.

First,

If we are facing some failures on installing Ubuntu 14.04 or 15.04 using USB ISO installer, eg. at "Configure the package manager" step.

Don't skipp this step, you will facing some errors latter (eg. Miss some components of Ubuntu operating system).

The solutions:

1. Bypass this step, just go to next step:
   "Install the GRUB boot loader on a hard disk" first.
    
   
2. Wait until installation finished.
   Becarefull, don't select "Continue". Select "Go Back"

3. Repeat the failed step before.
   
   
   Beginning from: "Configure the package manager", then process will automatically going to next step, "Select and Install Software"

4. Finish The Installation
   Installation is complete.

This post based my experience, the problem solving may be different according to the problems that arises.

Note:
Another refference

1. ERROR INSTALL UBUNTU SERVER/ DESKTOP 14.04/ 15.04 FROM USB STICK - MOUNTING CDROM | SOLVED
2. CHANGE INSTALLED GRUB ON USB MOVE TO HARDDISK