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Thread: Grub 2 Not seeing OS's

  1. #21
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    Re: Grub 2 Not seeing OS's

    I think that I would WITHOUT REBOOTING until sure things were right, remove everything related to grub in synaptic.

    You must have an upgrade to 9.10 and there is some residue from grub-legacy that is screwing things up. If you have a custom file just copy it to some place safe like your desktop so you can just put it back.

    Then just install grub-common and grub-pc. When done, even though this was run when you installed, run both update-grub and grub-install /dev/sda.
    Dell 480 XPS 3G ram Quad Core 2.40GHz, Radeon HD 2400 PRO, Audigy1, 3x320G HDD, 320G External, Debian Testing for use, Debian Squeeze for secure use, Debian Sid for FUN

  2. #22
    Join Date
    Mar 2008
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    Ubuntu 11.04 Natty Narwhal

    Re: Grub 2 Not seeing OS's

    I removed everything GRUB releated. Then installed grub-common and grub-pc.

    when I ran sudo update-grub I got a something new.

    Code:
    Generating grub.cfg ...
    Found linux image: /boot/vmlinuz-2.6.31-14-generic
    Found initrd image: /boot/initrd.img-2.6.31-14-generic
    Found memtest86+ image: /boot/memtest86+.bin
    ls: cannot access /media/New: No such file or directory
    Found Windows 7 (loader) on /dev/sda3
    Found Windows Vista (loader) on /dev/sdb1
    done
    It did not show that SLAX was added when I ran sudo update-grub, but when I run grub-mkconfig it shows that SLAX was added.

    EDIT:

    I just ran sudo bash /home/patrick/Downloads/boot_info_script038.sh and got some different starting results.

    Code:
    ============================= Boot Info Summary: ==============================
    
     => Grub1.97 is installed in the MBR of /dev/sda and looks on the same drive 
        in partition #1 for /boot/grub.
     => Windows is installed in the MBR of /dev/sdb
     => Windows is installed in the MBR of /dev/sdc
    Last edited by Musick Man; December 5th, 2009 at 11:11 PM.

  3. #23
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    Re: Grub 2 Not seeing OS's

    Well, I just don't know. What is the deal with this grub .97 business?

    Does everything on your menu work?

    As far as Slax goes I have only run it as a live CD and really have no idea what the right entry would be.

    I assume, though, that it is on sda4. That means that the drive/partition definition should be "(hd0,4)".

    I am sure that you need to chainload it.
    Dell 480 XPS 3G ram Quad Core 2.40GHz, Radeon HD 2400 PRO, Audigy1, 3x320G HDD, 320G External, Debian Testing for use, Debian Squeeze for secure use, Debian Sid for FUN

  4. #24
    Join Date
    Mar 2008
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    Southern California, USA
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    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Grub 2 Not seeing OS's

    Yes, Everything else on my menu works.

    I have the hard drive setup as hd(0,4)

    Code:
    echo "Adding SLAX" >&2 
    cat << EOF
    menuentry "SLAX" {
            set root=(hd0,4)
            chainloader +1
    }
    EOF
    I will try booting it again and see what happens.

  5. #25
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    Re: Grub 2 Not seeing OS's

    That does not work I take it?
    Dell 480 XPS 3G ram Quad Core 2.40GHz, Radeon HD 2400 PRO, Audigy1, 3x320G HDD, 320G External, Debian Testing for use, Debian Squeeze for secure use, Debian Sid for FUN

  6. #26
    Join Date
    Mar 2008
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    Southern California, USA
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    Ubuntu 11.04 Natty Narwhal

    Re: Grub 2 Not seeing OS's

    Code:
    echo "Adding SLAX" >&2 
    cat << EOF
    menuentry "SLAX" {
            set root=(hd0,4)
            chainloader +1
    }
    EOF
    does not work. When I select it and press enter it says error: Invalid Signature Press any key to continue.

  7. #27
    Join Date
    Aug 2008
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    Re: Grub 2 Not seeing OS's

    You need to check the 2nd and 3rd links in the link in my sig. drs305 has done a great job and a lot of folks have posted how to boot to all sorts of OS'. Search the threads for Slax.
    Dell 480 XPS 3G ram Quad Core 2.40GHz, Radeon HD 2400 PRO, Audigy1, 3x320G HDD, 320G External, Debian Testing for use, Debian Squeeze for secure use, Debian Sid for FUN

  8. #28
    Join Date
    Jun 2009
    Location
    SW Forida
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    Hidden!
    Distro
    Kubuntu

    Re: Grub 2 Not seeing OS's

    To chainboot you have to have grub or some boot loader in the PBR of the slax partition. The script will set it if it is there although it sometimes does not correctly identify all PBR data.

    The script only shows slax as the label of that partition. What is really in that partition?
    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. #29
    Join Date
    Mar 2008
    Location
    Southern California, USA
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    52
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Grub 2 Not seeing OS's

    Well after looking at your posts, and doing some re-search, I have come to the conclusion that SLAX was made to only be a Live CD and was never intended to be used on the desktop.

    Thanks for all your help everyone that had some input. I am glad to know that there is a very smart group of people that is always eager to help.

    -Musick Man

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