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Lilo: ide ok but scsi not supported by BIOS. How to boot? - Linux Setup, Configuration & Administration

Hi! I have a n old motherboard with a IDE disk with Windows on it. Then I have a SCSI interface without boot BIOS (system can't boot from scsi). I installed Linux on a SCSI disk attached to it. Booting Linux from floppy is ok. Booting Windows from IDE is ok. Installing LILO on /dev/hda (MBR of the IDE disk) turns an error at boot time: L 01 01 01 01 The 'L 01 01 ..." error code means Lilo can't access the disk. I guess it can't access the SCSI disk. How do I let Lilo interact with it ...

  1. #1

    Default Lilo: ide ok but scsi not supported by BIOS. How to boot?

    Hi!

    I have a n old motherboard with a IDE disk with Windows on it.
    Then I have a SCSI interface without boot BIOS (system can't boot from
    scsi). I installed Linux on a SCSI disk attached to it.

    Booting Linux from floppy is ok. Booting Windows from IDE is ok.
    Installing LILO on /dev/hda (MBR of the IDE disk) turns an error at
    boot time: L 01 01 01 01

    The 'L 01 01 ..." error code means Lilo can't access the disk. I guess
    it can't access the SCSI disk.

    How do I let Lilo interact with it at boot time?


    lilo.conf is:
    -----------------------------------
    prompt
    timeout=50
    default = Linux
    boot = /dev/hda
    map = /boot/map
    installa = /boot/boot.b
    message = /boot/message
    linear

    image = /boot/vmlinuz-2.4.20-8
    label = Linux
    initrd = /boot/initrd-2.4.20-8.img
    read-only
    root = /dev/sda2

    other = /dev/hda1
    label = Windows
    -----------------------------------


    Any hints? Do I have any chance to let LILO start Windows or Linux
    installing it on the MBR of the IDE disk? How does Lilo knows how to
    handle with the scsi disk? Does it do it without any modification or
    special configuration?

    thank you.

    Roberto Guest

  2. #2

    Default Re: Lilo: ide ok but scsi not supported by BIOS. How to boot?

    Roberto wrote:
     

    .... more likely disk geometry mismatch, usu indicative of
    an older bios and trying to gain access beyond 1024 cylinders.
    you DID mention you have an "old motherboard". please provide
    complete hardware specs of machine, including partition
    information
    ..
    --
    /// Michael J. Tobler: motorcyclist, surfer, skydiver, \\\
    \\\ and author: "Inside Linux", "C++ HowTo", "C++ Unleashed" ///
    Truth is the most valuable thing we have -- so let
    us economize it. - Mark Twain

    mjt Guest

  3. #3

    Default Re: Lilo: ide ok but scsi not supported by BIOS. How to boot?

    > I have a n old motherboard with a IDE disk with Windows on it. Then I 

    The BIOS doesn't see the SCSI disk at all?
     

    First I'd try to add:

    disk=/dev/hda
    bios=0x80
    disk=/dev/sda
    bios=0x81

    If that fails, create a small boot partition on the ide disk.

    Eric
    Eric Guest

  4. #4

    Default Re: Lilo: ide ok but scsi not supported by BIOS. How to boot?

    If the SCSI disk does not have BIOS support, then NOTHING needed at boot time
    may be placed on that disk. You will absolutely need a /boot partition on
    /dev/hda with all of the kernel & lilo files: /boot/map, /boot/vmlinuz*, and
    /boot/initrd*.

    For earlier versions of lilo you'll also need: /boot/boot*.b, /boot/chain.b, &
    /boot/mbr.b, Optional files like bitmaps & message files must be there too.

    The boot loader needs I/O drivers, and the BIOS provides this support. With
    no BIOS support for the SCSI drive, it is unusable for any boot files. Best
    insurance against using it is the following line in lilo.conf:

    disk=/dev/sda inaccessible

    With this line, any use of a file on the SCSI disk will produce a fatal error
    at install-time; i.e., when you run /sbin/lilo.

    --John



    On Fri, 10 Oct 2003 12:20:55 +0200, Roberto <net> wrote:
     

    JohnInSD Guest

  5. #5

    Default Re: Lilo: ide ok but scsi not supported by BIOS. How to boot?

    On Fri, 10 Oct 2003 15:15:48 GMT, JohnInSD At san DOT rr dot COM
    <com> wrote:
     

    You are absolutely right. The more I think of a simplified solution
    involving no changes on /dev/hda the more I get conviced that there is
    not a magical way :-)

    I copied the entire content of /boot from /dev/sda1 to a newly created
    /dev/hda2, I modified /etc/fstab, run Lilo and now it works!

    Thank you.

     

    Roberto Guest

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