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Thread: Grub Error : Selected disk does not exist

  1. #1
    Join Date
    May 2008
    Posts
    181

    Grub Error : Selected disk does not exist

    Hello,

    I have Ubuntu 4.10 successfully installed on my Samsung SATA hard disk. GRUB is also thing and good boots.

    Unfortunately, I can not start Ubuntu, it comes the message: Error 21: Selected disk does not exist

    GRUB knows my S-ATA Samsung hard drive (when installing from CD, it was detected).
    My two ATA133 disks
    provides GRUB without problems, however.

    What can I do? Does GRUB (yet) no S-ATA HDs?

    Does anyone have advice?

    Thank you

  2. #2
    Join Date
    May 2008
    Posts
    209

    Re: Grub Error : Selected disk does not exist

    I'm not sure, but i think that grub counts disks, not controlers.

    Have you tried

    Code:
    rootnoverify (hd1,0)

  3. #3
    Join Date
    Dec 2007
    Posts
    280

    Re: Grub Error : Selected disk does not exist

    Hi,

    Note that "Partition table entries are not in disk order"

    while in fdisk, go to "x extra functionality (experts only)" and then "f fix partition order"

  4. #4
    Join Date
    May 2008
    Posts
    335

    Re: Grub Error : Selected disk does not exist

    Try rootnoverify instead of root. But it does seem like a strange error; does the disk show up in BIOS properly? Linux will bypass BIOS, but grub alone can't do that.

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