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Thread: EFI booting hangs

  1. #21
    Join Date
    Jul 2010
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    Ubuntu 10.04 Lucid Lynx

    Re: EFI booting hangs

    So far, this conversation has touched on the bootloader that I use. Are there any kernel boot options/parameters that I might be able to use instead?

  2. #22
    Join Date
    May 2008
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    Ubuntu 22.04 Jammy Jellyfish

    Re: EFI booting hangs

    Quote Originally Posted by Melab View Post
    My installation is already on a portable USB, not an internal SSD/HDD, and I have attempted using rEFInd on it.
    I created the installation in VirtualBox and I verified that it also works on my laptop.
    This is new information.
    Quote Originally Posted by Melab View Post
    How does it know what the target root device is? Or which initramfs to use?
    rEFInd will boot the kernel of a UEFI installation on an external usb device.
    You simply have to choose the correct disk.

    If the UEFI firmware, PC hardware and the installed OS are in good order, then it will boot.

  3. #23
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    Jul 2010
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    Ubuntu 10.04 Lucid Lynx

    Re: EFI booting hangs

    Quote Originally Posted by tea for one View Post
    This is new information.

    rEFInd will boot the kernel of a UEFI installation on an external usb device.
    You simply have to choose the correct disk.

    If the UEFI firmware, PC hardware and the installed OS are in good order, then it will boot.
    Okay, so that is how it would work. But, as I've said, I have tried rEFInd before and I get the exact same result as with GRUB​.
    Last edited by Melab; February 19th, 2024 at 09:20 PM.

  4. #24
    Join Date
    May 2008
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    Ubuntu 22.04 Jammy Jellyfish

    Re: EFI booting hangs

    Quote Originally Posted by Melab View Post
    Okay, so that is how it would work. But, as I've said, I have tried rEFInd before and I get the exact same result as with GRUB​.
    Previously, you mentioned that you can boot this external installation in Legacy (BIOS) mode on your Fit-PC3.
    Can you boot the OS in BIOS mode and supply a boot-repair report?
    More info https://help.ubuntu.com/community/Boot-Repair - 2nd option using your installed system.

    It may provide a clue...............?

  5. #25
    Join Date
    Jul 2010
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    Ubuntu 10.04 Lucid Lynx

    Re: EFI booting hangs

    Quote Originally Posted by tea for one View Post
    Previously, you mentioned that you can boot this external installation in Legacy (BIOS) mode on your Fit-PC3.
    Can you boot the OS in BIOS mode and supply a boot-repair report?
    More info https://help.ubuntu.com/community/Boot-Repair - 2nd option using your installed system.

    It may provide a clue...............?
    Is this on/in the installer environment? What exactly does it do or report on? How would running this in BIOS mode even help when I'm trying to get EFI mode to work?

    If this is in the installer environment, then I'll try it. But, I really think trying different kernel boot options/parameters might be the way to go instead. Do you know any that might work/help?
    Last edited by Melab; February 19th, 2024 at 10:21 PM.

  6. #26
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    Jul 2010
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    Ubuntu 10.04 Lucid Lynx

    Re: EFI booting hangs

    I added the following boot options to the kernel command line and booted Linux on my fit-PC3 in EFI mode:
    Code:
    earlyprintk ignore_loglevel initcall_debug earlycon=efifb
    For the first time, I am seeing output from Linux. The kernel console output stopped with these last two lines:
    Code:
    [    8.352123] printk: console [tty0] enabled
    [    8.412484] printk: bootconsole [efifb0] disabled
    Does anyone know why this is?

  7. #27
    Join Date
    Jul 2010
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    Ubuntu 10.04 Lucid Lynx

    Re: EFI booting hangs

    Are there any boot options that might fix this?

  8. #28
    Join Date
    Mar 2011
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    Hidden!
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    Ubuntu 22.04 Jammy Jellyfish

    Re: EFI booting hangs

    Has anybody suggested installing efibootmgr and running in terminal?

  9. #29
    Join Date
    Jul 2010
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    Re: EFI booting hangs

    Quote Originally Posted by dragonfly41 View Post
    Has anybody suggested installing efibootmgr and running in terminal?
    Doing that presupposes that I have successfully booted Linux in EFI mode.

  10. #30
    Join Date
    Jul 2010
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    Ubuntu 10.04 Lucid Lynx

    Re: EFI booting hangs

    Quote Originally Posted by tea for one View Post
    Previously, you mentioned that you can boot this external installation in Legacy (BIOS) mode on your Fit-PC3.
    Can you boot the OS in BIOS mode and supply a boot-repair report?
    More info https://help.ubuntu.com/community/Boot-Repair - 2nd option using your installed system.

    It may provide a clue...............?
    What would this report if I run it in BIOS mode?

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