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Thread: EFI booting hangs

  1. #11
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    Re: EFI booting hangs

    Quote Originally Posted by MAFoElffen View Post
    Fit-PC's Support has two different instructions for booting UEFI USB install disks on their machines, based on if their PC has either AMI or Phoenix BIOS...

    Basically for both, they recommend that the USB installer be created using Rufus, with a GPT partition table... Here's where the differences are:
    Wait, what? I already have an installation. The problem is that it won't boot Linux (or it doesn't seem to boot it) in EFI mode.
    Last edited by Melab; February 18th, 2024 at 03:19 AM.

  2. #12
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    Re: EFI booting hangs

    Quote Originally Posted by Melab View Post
    I like EFI.
    Me too

    As you can use a portable rEFInd to access an EFI shell, have you tried to boot the kernel directly (i.e. avoiding grub)?
    There should be an icon for this choice.
    For an installed system, something like - "boot\vmlinuz-6.2.0-35-generic from 30 GiB ext4 volume"

    Your UEFI firmware being the second latest, is the latest still available?

  3. #13
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    Re: EFI booting hangs

    Quote Originally Posted by tea for one View Post
    As you can use a portable rEFInd to access an EFI shell, have you tried to boot the kernel directly (i.e. avoiding grub)?
    No, because the shell does not have the facilities for booting Linux with an initramfs and boot options.

    Quote Originally Posted by tea for one View Post
    There should be an icon for this choice.
    For an installed system, something like - "boot\vmlinuz-6.2.0-35-generic from 30 GiB ext4 volume"
    I don't know if you are talking about rEFInd or the EFI shell now. If you are talking about rEFInd, then doesn't that require configuration instead of it dynamically building a list of bootable Linux targets? If you are talking about rEFInd, then as I already mentioned, I've already tried using it to boot Linux with a pre-configured pairing of kernel, initramfs, and boot options.

    Quote Originally Posted by tea for one View Post
    Your UEFI firmware being the second latest, is the latest still available?
    Yes, but I do not want to update it until I find out how I can create a backup of the UEFI/BIOS SPI flash contents from within Linux (I do not have a flash connector and I do not want to take apart my fit-PC3).

  4. #14
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    Re: EFI booting hangs

    Most systems update from within UEFI as UEFI is designed to read FAT32 partitions.
    Often 3 ways, from Windows, from a USB flash drive or from a FAT32 partition on your internal drive.
    Many newer mainstream systems also now can be updated from Linux with fwupdate.

    It looks like for Linux, you can use a flash drive.
    https://fit-pc.com/wiki/index.php?ti...e_view_desktop
    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. #15
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    Re: EFI booting hangs

    Quote Originally Posted by Melab View Post
    I don't know if you are talking about rEFInd or the EFI shell now.
    I was referring to using rEFInd on a portable USB device.
    Assuming that your installed Ubuntu OS is built correctly with an ESP, rEFInd has an option to boot the kernel without any "pre-configuration"
    The screenshot attached displays the option.
    Attached Images Attached Images

  6. #16
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    Re: EFI booting hangs

    Quote Originally Posted by Melab View Post
    I have a fit-PC3 on which I am trying to boot Linux in EFI mode. The problem is that the booting process (or maybe it's just the graphics) hangs right when GRUB2 says that it is loading the initrd. It doesn't matter if it's an already-setup Ubuntu installation,
    The text above is from post no.1.
    As you cannot boot in EFI mode, did you make this "already-setup installation" on a different PC?
    Swapping Ubuntu disks between PCs is often successful if there is no esoteric hardware involved.

  7. #17
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    Re: EFI booting hangs

    You have some other issue.

    I have used a grub BIOS boot stanza on old HDD to boot my UEFI install on external SSD.

    So once grub had started loading boot stanza you have booted grub in UEFI mode.
    Then it really does not matter if UEFI or BIOS as you load kernel & drivers to finish boot.
    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.

  8. #18
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    Re: EFI booting hangs

    Quote Originally Posted by oldfred View Post
    Most systems update from within UEFI as UEFI is designed to read FAT32 partitions.
    Often 3 ways, from Windows, from a USB flash drive or from a FAT32 partition on your internal drive.
    Many newer mainstream systems also now can be updated from Linux with fwupdate.

    It looks like for Linux, you can use a flash drive.
    https://fit-pc.com/wiki/index.php?ti...e_view_desktop
    I don't want to attempt an update of the firmware until I have created a backup of the current flash chip contents and until I feel confident enough to update it without problems.

    Also, that is NOT my PC.

  9. #19
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    Re: EFI booting hangs

    Quote Originally Posted by tea for one View Post
    I was referring to using rEFInd on a portable USB device.
    Assuming that your installed Ubuntu OS is built correctly with an ESP, rEFInd has an option to boot the kernel without any "pre-configuration"
    The screenshot attached displays the option.
    How does it know what the target root device is? Or which initramfs to use?

    My installation is already on a portable USB, not an internal SSD/HDD, and I have attempted using rEFInd on it.

    Quote Originally Posted by tea for one View Post
    The text above is from post no.1.
    As you cannot boot in EFI mode, did you make this "already-setup installation" on a different PC?
    Swapping Ubuntu disks between PCs is often successful if there is no esoteric hardware involved.
    I created the installation in VirtualBox and I verified that it also works on my laptop.

  10. #20
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    Re: EFI booting hangs

    Quote Originally Posted by oldfred View Post
    You have some other issue.

    I have used a grub BIOS boot stanza on old HDD to boot my UEFI install on external SSD.

    So once grub had started loading boot stanza you have booted grub in UEFI mode.
    Then it really does not matter if UEFI or BIOS as you load kernel & drivers to finish boot.
    No, I think the issue is with EFI booting because, as I've said, it works in BIOS mode.

    I don't know what you mean by a "BIOS boot stanza". Could you clarify? To my understanding, a boot target either runs in UEFI mode or BIOS mode, and you can't switch modes while the computer is running. But, that isn't likely to solve it because this problem isn't limited to when I use GRUB to try to boot Linux. The same result happens when I try to use rEFInd as the bootloader, too.
    Last edited by Melab; February 19th, 2024 at 10:23 PM.

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