How to get Ubuntu installed, when my laptop restarts without installing?

Question

I'm trying to install Ubuntu from USB flash. So I boot from it and the install begins. It works until it ask me which type of instillation I want.

I choose alongside with Windows 7 and then it the computer restarts and Windows 7 runs without Ubuntu being installed! I tried this installation several times and every time I get the same problem. How can I fix this problem and get Ubuntu to install?

Solution 1

i know this post is quit a long time ago, but i had the same problem & is now solved; By responsing, i am just hoping someoneelse might find it useful in the future.

1st thing about "I choose alongside with Windows 7 and then it the computer restarts and Windows 7 runs without Ubuntu being installed" : u need to do a partition manually, i am not too sure why (doing with EFI/BIOS issues?), but after that the install worked out fine.

i hope that will do for your computer; but mine had a lot of problems after this duelling with the UEFI/ legacy BIOS, which took me another 4 weeks to dual-boot (somehow my BIOS doesn't allow BIOS boot); if u have the same problem, pls check the following links:

https://help.ubuntu.com/community/UEFI#Setup_the_BIOS_in_EFI_or_Legacy_mode

https://help.ubuntu.com/community/BootPartition

Solution 2

This resembles two common problems.

If it restarted soon after you told it to install alongside:

Then you are probably using bad installation media. There are two causes:

1. Corrupted ISO image.
2. Bad write to the USB flash drive (or, if you had been using a CD/DVD, bad burn).

First, check the MD5SUM on the ISO image to see if it's corrupted. If it is, download it again (and test that, too).

If it's not corrupted, boot from the USB flash drive, press a key when you see the keyboard and person icon appear at the bottom of the screen, and select Check disc for defects. (See also this video.) This applies equally for CD/DVD and USB media. That should reveal if the write is bad.

If it is bad, write it again (and test it again). If it's still bad, make sure you're writing it correctly. If you are, and it's still not working, try writing it with a different technique. If you're creating the live USB in Windows, there are two common techniques, so you can try whichever one you're not currently using:

• Universal USB Installer
• UNetbootin

If the installation went on for a while and then it restarted:

In this case, it's still worth checking the installation media, but it's more likely Ubuntu did install successfully, but that the GRUB2 boot loader was not properly installed to the Master Boot Record. To fix that problem, use any of the methods listed in:

• How can I repair grub? (How to get Ubuntu back after installing Windows?)
  (That applies even though your problem is not due to a recent Windows installation.)
• Ubuntu help wiki section on reinstalling GRUB2 to fix a broken system.

If neither works:

Then more information is needed. Please boot from the USB flash drive, open a Terminal (Ctrl+Alt+T), and run:

sudo parted -l

Then edit your question (or, for readers other than the creator of this question, make a new question) to include the complete and exact text from the Terminal (you can copy it to the clipboard in the live USB system, access Ask Ubuntu, and paste it in, then format it with the <$> tool in the Ask Ubuntu editing toolbar).

Comments

[Eliah Kagan]

@adil That actually does not guarantee the ISO and write are okay, because (1) different data from the disk may be used to install on different computers, and (2) the USB flash drive's contents can become corrupted even after it is written. However, can you provide more information? How long did the installation go after you told to install alongside other operating systems, before it rebooted?

[Adil Elsaeed]

ok i will try Check disc for defects and post the result

[Adil Elsaeed]

i follow the step on the video but there is no "Check disc for defects."

[Eliah Kagan]

@adil That's very strange. What do you see? Do you get a menu at all? Are you pressing a key when the keyboard and person icons appear at the bottom of the screen?

[Eliah Kagan]

@adil Are you still experiencing this problem? If so, can you you say what you did see?