I'm trying to do an offline upgrade of ubuntu without using cdrom.
I tried somne of options listed in the below links :
The issue I'm facing is that when i boot from a "live" usb of ubuntu 13.10, GUI does not provide an option upgrade existing installation of ubuntu 13.04.
When mounting the Ubuntu Live ISO inside existing Ubuntu installation and adding it to the software sources list, I'm able to update individual package, but not the entire release.
Specifically, when I go offline and try the do-release upgrade from Terminal, it is not able to find any updates to OS.
Can you please guide me to upgrade 13.04 to 13.10 from the mounted iso ?
My PC already has windows 7 and Windows 8 installed. It loads off the Windows 7 bootloader and is linked to grub by using Easy BCD.