GrubHowto/BootFloppy - Community Ubuntu Documentation - The Diigo Meta page

• 29 May 09
  

  H.C. Chen

  Howto make a GRUB boot floppy

  linux ubuntu boot floppy document official

  • mount /dev/fd0 /media/floppy
    mkdir /media/floppy/boot
    mkdir /media/floppy/boot/grub
    cd /boot/grub
    cp stage1 stage2 /media/floppy/boot/grub

    • 

      H.C. Chen on 2009-05-29

      When I tird to do these by Ubuntu 'My computer' or xfe I failed (and without correct error messages!). Only the root terminal can do these.
  • then start GRUB in interactive mode by typing grub

    • 

      H.C. Chen on 2009-05-29

      In root terminal, key in command 'grub'.
  • 2 more annotations...
  • • device (fd0) /dev/fd0
      root (fd0)
      setup (fd0)
      quit

      • 

        H.C. Chen on 2009-05-29

        I have problem here. 'root (fd0' replies an error says 'unknown partition table signature'. That means the program doesn't know this is a floppy. Try to get help from http://ubuntuforums.org/archive/index.php/t-401455.html
      • 

        H.C. Chen on 2009-05-29

        Retry key in the command 'root (fd0)' again, ... the problem gone !!
      • 3 more sticky notes...
      • • 

          H.C. Chen on 2009-05-29

          after the 'quit' , I mount the floppy back and check ... no new file were added. I only seen /boot/grub/stage1 stage2
        • 

          H.C. Chen on 2009-05-29

          This floppy is really bootable !! It boot up to GRUB command prompt very quickly. I didn't do the above step that copys /boot/grub/menu.lst and device.map. I did it then and the floppy really boot to my Ubuntu 904 from HDD after all although it boots from floppy at first.
        • 

          H.C. Chen on 2009-05-29

          so, this diskette is suitable for http://a.nnotate.com/docs/2009-05-27/sBK2v0yg/index.html#note34 study
    • dd if=/dev/hda of=/media/floppy/boot.mbr bs=512 count=1

      • 

        H.C. Chen on 2009-05-29

        in my case, there's no /dev/hda thus error occured that said so. According to /boot/grub/device.map I got the correct device path /dev/sba and it really works. This command line demos how to save HDD MBR to a file by standard dd command.

Public Stiky Notes

• 
  H.C. Chen on 2009-05-29
  When I tird to do these by Ubuntu 'My computer' or xfe I failed (and without correct error messages!). Only the root terminal can do these.
• 
  H.C. Chen on 2009-05-29
  In root terminal, key in command 'grub'.
• 
  H.C. Chen on 2009-05-29
  so, this diskette is suitable for http://a.nnotate.com/docs/2009-05-27/sBK2v0yg/index.html#note34 study
• 
  H.C. Chen on 2009-05-29
  This floppy is really bootable !! It boot up to GRUB command prompt very quickly. I didn't do the above step that copys /boot/grub/menu.lst and device.map. I did it then and the floppy really boot to my Ubuntu 904 from HDD after all although it boots from floppy at first.
• 
  H.C. Chen on 2009-05-29
  after the 'quit' , I mount the floppy back and check ... no new file were added. I only seen /boot/grub/stage1 stage2
• 
  H.C. Chen on 2009-05-29
  Retry key in the command 'root (fd0)' again, ... the problem gone !!
• 
  H.C. Chen on 2009-05-29
  I have problem here. 'root (fd0' replies an error says 'unknown partition table signature'. That means the program doesn't know this is a floppy. Try to get help from http://ubuntuforums.org/archive/index.php/t-401455.html
• 
  H.C. Chen on 2009-05-29
  in my case, there's no /dev/hda thus error occured that said so. According to /boot/grub/device.map I got the correct device path /dev/sba and it really works. This command line demos how to save HDD MBR to a file by standard dd command.

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