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Thread: Grub2 iso boot - how to load iso's grub menu entry.

  1. #1
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    May 2013
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    Grub2 iso boot - how to load iso's grub menu entry.

    Following this guide: https://help.ubuntu.com/community/Grub2/ISOBoot I have usb with multiple isos. One of isos is ubuntu iso. Now I would like to invoke ubuntu iso, see ubuntu iso's it's own menu entry and run it's memtest86+. It's available if I will burn the iso on the CD but how to achieve this if iso is loaded by GRUB2?

    As a workaround I put memtest86+bin in isos folder and put menuentry for it:
    Code:
    menuentry "Memory test (memtest86+ 4.20)" {
        linux16 /boot/isos/memtest86+-4.20.bin
    }
    Another example would be to reach parted magic menu: http://partedmagic.com/doku.php?id=screenshots
    Such solution would bring much more flexibility.

    I guess it's not possible? But maybe I can create additional menu entry to reach i.e. ubuntu's memtest?
    Last edited by darekch; May 25th, 2013 at 03:07 PM.

  2. #2
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    Apr 2011
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    Ubuntu 12.04 Precise Pangolin

    Re: Grub2 iso boot - how to load iso's grub menu entry.

    You could look into trying to chainload into the iso's bootloader, which would then give you the iso's boot options.
    Don't know if it's even possible, but worth looking into.

    Anyway, what's wrong with the memtest already provided in the grub that's loading?
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  3. #3
    Join Date
    Nov 2011
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    Re: Grub2 iso boot - how to load iso's grub menu entry.

    Quote Originally Posted by darekch View Post
    Following this guide: https://help.ubuntu.com/community/Grub2/ISOBoot I have usb with multiple isos. One of isos is ubuntu iso. Now I would like to invoke ubuntu iso, see ubuntu iso's it's own menu entry and run it's memtest86+. It's available if I will burn the iso on the CD but how to achieve this if iso is loaded by GRUB2?

    As a workaround I put memtest86+bin in isos folder and put menuentry for it:
    Code:
    menuentry "Memory test (memtest86+ 4.20)" {
        linux16 /boot/isos/memtest86+-4.20.bin
    }
    Another example would be to reach parted magic menu: http://partedmagic.com/doku.php?id=screenshots
    Such solution would bring much more flexibility.

    I guess it's not possible? But maybe I can create additional menu entry to reach i.e. ubuntu's memtest?
    The 'grub-n-iso' method works unless you have Windows 8 and UEFI.

    See my posts in this thread

    http://ubuntuforums.org/showthread.php?t=2146967&page=2

    Browsing the internet you can find the command lines needed for many iso files except the Ubuntu files (but I think it is hard or impossible with some of them, for example the Ubuntu alternate iso files).

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