Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

How can I (re)install Ubuntu from within Ubuntu?

I am running Ubuntu 12.04, and I have a Ubuntu 13.04 on a USB drive.

I want to format my hard drive and install Ubuntu 13.04. I don't have a CD, and my computer won't boot from USB.

share|improve this question
You can use GRUB like in my answer here:… – gronostaj Jul 1 '13 at 10:47

From AskUbuntu:

To upgrade from Ubuntu 12.10 on a desktop system:

  • Open Software Sources.
  • Switch to the Updates tab and set Notify me of a new Ubuntu version to For any new version.
  • Press Alt+F2 and type in "update-manager -d" (without the quotes) into the command box.
  • Update Manager should open up and tell you: New distribution release '13.04' is available.
  • Click Upgrade and follow the on-screen instructions.

No need for USB device. However, if you don't have internet connection it won't work.

share|improve this answer
Does that allow me to format, or is that just an upgrade? – Petah Jul 1 '13 at 10:23
I am not sure, but it makes sense that it will ask you if you want to format. Actually I have dual-boot laptop with Ubuntu 12.04, so I will check this now. – matan129 Jul 1 '13 at 10:26
Also, have you tried changing the boot order via the boot menu? it should let you boot from USB. – matan129 Jul 1 '13 at 10:35
Yea I tried changing the boot order, there was a "Removable Media" option, but it didn't work. – Petah Jul 1 '13 at 12:22
Can you determine your motherboard model and write it here? By the way, Ubuntu Upgrade doesn't have the option of formatting, I've checked. – matan129 Jul 1 '13 at 12:28

You won't be able to do a format and install without booting from some external device.

share|improve this answer
Can I not make Ubuntu boot from the USB? or Grub maybe? – Petah Jul 1 '13 at 10:23
Booting from USB will be a bios option in your PC, it won't be anything to do with the operating system you're trying to boot into. – Simkill Jul 1 '13 at 10:36

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.