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Thread: Installed Ubuntu - now can't boot from USB or CD

  1. #1
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    Installed Ubuntu - now can't boot from USB or CD

    My laptop (Fujitsu Lifebook AH532) came with Windows 8, which I then upgraded to 8.1. I have now installed Ubuntu 14.04, completely replacing Windows. After I installed I realised I'd forgotten to setup a separate /home partition. So I want to follow the instructions at https://help.ubuntu.com/community/Pa...ng/Home/Moving

    So I got out my Sysrescue CD (which has gparted on it) ready to boot from that, but I can't. Although after each restart the screen shows "F2 for Setup" "F12 for Boot Menu" pressing those keys causes a beep and nothing else. I can get into the UEFI BIOS setup by choosing "System Setup" from the Grub menu. However, although I move the CD drive and USB at the top of the boot priority list this does not work. The laptop still goes straight into Grub. And when I try restarting again and I look at the boot priority list again, Ubuntu is back at the top above CD and USB (yes I had pressed F10 to save and exit).

    How can I restore the ability to boot from CD or USB?

  2. #2
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    Re: Installed Ubuntu - now can't boot from USB or CD

    New Windows 8 systems are UEFI boot with gpt partitioning, but have settings to boot in CSM mode.
    CSM - UEFI Compatibility Support Module (CSM), which emulates a BIOS mode

    The Windows & Ubuntu installers will boot in either mode which you select from the UEFI boot menu. Often UEFI is clearly shown, but BIOS mode is just the name of the flash drive.

    Not sure if Sysrescue is UEFI capabile or not. You may have to switch system around to boot it. But if your install is UEFI that could create more issues.
    Better just to use the flash drive or DVD you used to install Ubuntu as it has gparted on the installer. You can create the new partition from that.

    Is drive gpt or MBR(msdos)?
    If MBR you have the 4 partition limit, but if gpt all partition are primarily and you have a soft (user can change to even more) limit of only 128 partitions.
    Ubuntu can boot from gpt with BIOS mode or UEFI mode if correct supporting partitions are on drive. With UEFI you must have efi partition and with BIOS you must have bios_grub partition. I now partition all new drives with gpt and include both. Neither are really large and efi partition should be at beginning of drive and that would be difficult to add later when drive has lots of data.


    GPT Advantages (older but still valid) see post#2 by srs5694:
    http://ubuntuforums.org/showthread.php?t=1457901
    https://wiki.archlinux.org/index.php...antages_of_GPT
    UEFI Advantages
    http://askubuntu.com/questions/44696...y-vs-uefi-help
    UEFI boot install & repair info - Regularly Updated :
    https://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  3. #3
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    Re: Installed Ubuntu - now can't boot from USB or CD

    Thank you for your quick reply.

    I can't boot from any CD or USB stick. Including the one that I used to install Ubuntu.

    I cannot access the UEFI boot menu to select USB or CD. But I could before installing Ubuntu.

    The drive is GPT.

  4. #4
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    Re: Installed Ubuntu - now can't boot from USB or CD

    You may have left UEFI fast boot or quick boot on.
    Some are able to boot from a total cold boot. Turn off power, remove battery, hold power switch for 10 sec or so to remove any left over power. Then see if you can press correct key to get into UEFI and be sure to first turn off fast boot setting. And see it then you can choose to boot USB flash drive again.

    Some systems require password to turn off UEFI
    Fujitsu lifebook ah512. Secure boot options blocked in bios - UEFI password required
    http://ubuntuforums.org/showthread.php?t=2171114
    Fujitsu Lifebook A512 [SOLVED] Dualboot pre-installed win 8.1 and Ubuntu 14.04.1
    http://ubuntuforums.org/showthread.php?t=2254442
    UEFI boot install & repair info - Regularly Updated :
    https://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  5. #5
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    Re: Installed Ubuntu - now can't boot from USB or CD

    I tried the cold boot idea. It didn't help.

    I can get into the UEFI BIOS settings through selecting the System Settings option in GRUB. I checked and Fast Boot is disabled. I also tried again changing the boot priorities so that USB and CD Rom come before Ubuntu. This doesn't work. It still boots straight into GRUB. When I select System Settings and go into the UEFI BIOS settings again, it has not saved the boot priorities. Ubuntu is back at the top again.

  6. #6
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    Re: Installed Ubuntu - now can't boot from USB or CD

    Does one time boot key work?
    Most systems have another key that just gives the boot options often f10 or f12 but varies by brand, check manual if not sure.
    UEFI boot install & repair info - Regularly Updated :
    https://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  7. #7
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    Re: Installed Ubuntu - now can't boot from USB or CD

    Yes it does have a key for boot options. That's the point. As I mentioned at the beginning of the thread, the startup screen shows "F2 for Setup" "F12 for Boot Menu". But when I press F12 there is a beep but nothing else. Then the GRUB menu appears. (Pressing F2 does nothing either - I can get into the UEFI BIOS setup but that's only because GRUB offers System Setup as one of the options.)

    Incidentally I have managed to boot from a USB stick - however this was only achieved by going into the UEFI BIOS setup (through GRUB as mentioned above) and disabling Ubuntu in the boot menu options. Then I was able to boot from USB. However I would consider this is only a workaround, not a solution, because after using the USB and restarting, Ubuntu will not boot from the hard drive. I then had to boot from USB into a Live version of Ubuntu and run Boot-Repair. Now I can boot from the hard drive again, but I'm back to not being able to boot from USB or CD!

  8. #8
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    Re: Installed Ubuntu - now can't boot from USB or CD

    Did you set a password (never lose that) as posted by several others in the links in post #4 above?
    UEFI boot install & repair info - Regularly Updated :
    https://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  9. #9
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    Re: Installed Ubuntu - now can't boot from USB or CD

    Sorry, I don't understand what you mean. Set a password?

    If you mean do I need a password to enter to the UEFI BIOS setting then the answer is yes. I have set the password. And when I enter the UEFI BIOS using the GRUB menu entry "System Settings" I am using the password.

  10. #10
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    Re: Installed Ubuntu - now can't boot from USB or CD

    Is there some other setting on fast UEFI boot or similar name?

    My motherboard has a fast boot and normal boot for both warm reboot and cold boot. And then it has a delay setting for fast boot so you can get into UEFI, I set mine to 3 sec.
    But every vendor has done UEFI differently. And if links to the couple of users with Fugitsu above do not mention how they did it, cannot help much more.
    UEFI boot install & repair info - Regularly Updated :
    https://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

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