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Thread: Grub install question

  1. #1
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    Default Grub install question

    I tried last time to install grub and failed.

    But first the details. I have two drives, one with Windows the other
    with openSUSE.
    In grub i got all the information correct. It discovered the partition
    and said ok.
    But after booting, it showed me always (after several time) a windows
    bootscreeen.
    How that happend? Did i do anything wrong or did Windows just prevent
    that. I had used the usual grub steps (find,root,setup,quit).
    But by installing all new (windows and linux) grub is there just fine. I
    don't get it. Where is my error?

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  2. #2
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    Smile Re: Grub install question

    Quote Originally Posted by JoergJaeger View Post
    I tried last time to install grub and failed.

    But first the details. I have two drives, one with Windows the other
    with openSUSE.
    In grub i got all the information correct. It discovered the partition
    and said ok.
    But after booting, it showed me always (after several time) a windows
    bootscreeen.
    How that happend? Did i do anything wrong or did Windows just prevent
    that. I had used the usual grub steps (find,root,setup,quit).
    But by installing all new (windows and linux) grub is there just fine. I
    don't get it. Where is my error?

    --

    Windows, supports nearly all software, hardware, and viruses.
    Linux Counter: 548299 https://linuxcounter.net/
    If I had Windows installed on /dev/sda and openSUSE installed on /dev/sdb and I wanted to boot from openSUSE and select openSUSE or Windows from the Grub OS selection menu, I would have to do several things to make that work:

    1. Select /dev/sdb as my boot device in the PC BIOS.
    2. Install openSUSE onto /dev/sdb, making sure ALL (Grub, / root, /home & SWAP all on /dev/sdb) of openSUSE was installed there.
    3. In the openSUSE install section, before I allowed the installation to begin, make sure that /dev/sdb is listed first before /dev/sda other wise the Grub menu and device.map fies will not be constructed properly.

    When you install openSUSE and the boot target is Not the first drive, you must make sure the install knows how it will be when it boots the openSUSE hard disk. This can not be guesed when you boot from a CD or DVD first.

    Thank You,
    My Blog: https://forums.opensuse.org/blogs/jdmcdaniel3/

    Software efficiency halves every 18 months, thus compensating for Moore's Law

    Its James again from Austin, Texas

  3. #3
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    Default Re: Grub install question

    On 07.02.2012 18:26, jdmcdaniel3 wrote:
    >
    > JoergJaeger;2438388 Wrote:
    >> I tried last time to install grub and failed.
    >>
    >> But first the details. I have two drives, one with Windows the other
    >> with openSUSE.
    >> In grub i got all the information correct. It discovered the partition
    >> and said ok.
    >> But after booting, it showed me always (after several time) a windows
    >> bootscreeen.
    >> How that happend? Did i do anything wrong or did Windows just prevent
    >> that. I had used the usual grub steps (find,root,setup,quit).
    >> But by installing all new (windows and linux) grub is there just fine.
    >> I
    >> don't get it. Where is my error?
    >>
    >> --
    >>
    >> Windows, supports nearly all software, hardware, and viruses.
    >> Linux Counter: 548299 https://linuxcounter.net/

    >
    > If I had Windows installed on /dev/sda and openSUSE installed on
    > /dev/sdb and I wanted to boot from openSUSE and select openSUSE or
    > Windows from the Grub OS selection menu, I would have to do several
    > things to make that work:
    >
    > 1. Select /dev/sdb as my boot device in the PC BIOS.
    > 2. Install openSUSE onto /dev/sdb, making sure ALL (Grub, / root, /home
    > & SWAP all on /dev/sdb) of openSUSE was installed there.
    > 3. In the openSUSE install section, before I allowed the installation
    > to begin, make sure that /dev/sdb is listed first before /dev/sda other
    > wise the Grub menu and device.map fies will not be constructed properly.
    >
    > When you install openSUSE and the boot target is Not the first drive,
    > you must make sure the install knows how it will be when it boots the
    > openSUSE hard disk. This can not be guesed when you boot from a CD or
    > DVD first.
    >
    > Thank You,
    >
    >

    Mm.. well what i did was that i had my linux and windows transfered via
    clonezilla to the harddrives.
    In theory that should work, but the problem was the bootmanager.
    I did not do point 1, but i did check the devices via fdisk.
    The point is what i am asking, that grub can be installed regardless. Right?

    --

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  4. #4
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    Default Re: Grub install question

    Most complications arise with 2 HD's because users actually get mixed up about boot order. Not only that (in my experience) the installer also gets mixed up. So you have to trawl through the bootloader settings at install to make sure it's all correct.
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  5. #5

    Default Re: Grub install question

    2 HDs are still OK, because everyone - including user, BIOS, mainboard, SATA controller, kernel - still agree about which is the first one and which is the last one. Tertium non datur! The fun begins with 3 HDs or more ...

  6. #6
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    Cool Re: Grub install question

    Quote Originally Posted by please_try_again View Post
    2 HDs are still OK, because everyone - including user, BIOS, mainboard, SATA controller, kernel - still agree about which is the first one and which is the last one. Tertium non datur! The fun begins with 3 HDs or more ...



    Real men can handle seven or more hard drives I have found. But of course its not the number of hard drives that count, but the number of partitions contained within, right?

    Thank You,
    My Blog: https://forums.opensuse.org/blogs/jdmcdaniel3/

    Software efficiency halves every 18 months, thus compensating for Moore's Law

    Its James again from Austin, Texas

  7. #7
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    Default Re: Grub install question

    On 07.02.2012 20:56, caf4926 wrote:
    >
    > Most complications arise with 2 HD's because users actually get mixed up
    > about boot order. Not only that (in my experience) the installer also
    > gets mixed up. So you have to trawl through the bootloader settings at
    > install to make sure it's all correct.
    >
    >


    I assume i mixed it up somehow. It drove me almost crazy because i was
    so certain that i was right and the computer wrong.
    Or that MS is more evil than i thought.
    Anyway, i hope i don't have to do it again but i am getting better with
    grub now to the point that i even remember the commands now.

    --

    Windows, supports nearly all software, hardware, and viruses.
    Linux Counter: 548299 https://linuxcounter.net/

  8. #8
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    Default Re: Grub install question

    Quote Originally Posted by JoergJaeger View Post
    On 07.02.2012 20:56, caf4926 wrote:
    >
    > Most complications arise with 2 HD's because users actually get mixed up
    > about boot order. Not only that (in my experience) the installer also
    > gets mixed up. So you have to trawl through the bootloader settings at
    > install to make sure it's all correct.
    >
    >


    I assume i mixed it up somehow. It drove me almost crazy because i was
    so certain that i was right and the computer wrong.
    Or that MS is more evil than i thought.
    Anyway, i hope i don't have to do it again but i am getting better with
    grub now to the point that i even remember the commands now.

    --

    Windows, supports nearly all software, hardware, and viruses.
    Linux Counter: 548299 https://linuxcounter.net/
    So, what is your situation now with booting openSUSE? Did you understand what was said about booting openSUSE from a second hard drive? Do you have any other questions to ask?

    Thank You,
    My Blog: https://forums.opensuse.org/blogs/jdmcdaniel3/

    Software efficiency halves every 18 months, thus compensating for Moore's Law

    Its James again from Austin, Texas

  9. #9

    Default Re: Grub install question

    Quote Originally Posted by jdmcdaniel3 View Post
    But of course its not the number of hard drives that count, but the number of partitions contained within, right?
    you're kidding.
    The number of partitions is irrelevant actually. 2 hard disks with 60 partitions are easier to manage than 6 hard disks with 1 or 2 partitions. When Grub doesn't find the partition, most of the time, that's because it looks on the wrong disk.

  10. #10
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    Default Re: Grub install question

    Quote Originally Posted by please_try_again View Post
    you're kidding.
    The number of partitions is irrelevant actually. 2 hard disks with 60 partitions are easier to manage than 6 hard disks with 1 or 2 partitions. When Grub doesn't find the partition, most of the time, that's because it looks on the wrong disk.
    Me kidding? What would give you that idea? (and hello tonight please_try_again)

    Thank You,
    My Blog: https://forums.opensuse.org/blogs/jdmcdaniel3/

    Software efficiency halves every 18 months, thus compensating for Moore's Law

    Its James again from Austin, Texas

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