UbuntuHelp:Installation/FromCDwithBootFloppy

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https://help.ubuntu.com/community/Installation/FromCDwithBootFloppy

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This explains how use a DOS boot floppy to install from a USB-connected CD/DVD drive, when the PC BIOS does not support booting from USB devices.

This has been tested with Ubuntu 6.06 LTS Server, but may be adaptable to other versions.

Requirements

• A floppy drive
• A USB-connected CD or DVD drive
• Ubuntu installation CD (6.06 LTS Server is know to work)
• MS-DOS or Windows 95/98 boot disk with MSCDEX.EXE
• Cypress DUSE USB drivers
• linld 0.97

Preparation

• Copy DUSE.EXE and DUSELDR.COM from the DUSE package, and LINLD.EXE (sometimes LINLD097.EXE) to the boot floppy.
• Examine the isolinux.cfg file in the isolinux directory of the Ubuntu CD to determine the necessary parameters for linld.

For example:

LABEL install
menu label ^Install to the hard disk
kernel /install/vmlinuz
append  preseed/file=/cdrom/preseed/ubuntu-server.seed initrd=/install/initrd.gz ramdisk_size=16384 root=/dev/ram rw quiet --

• Create a text file on your boot floppy, perhaps called options.txt, and paste in the all the parameters except the kernel and initrd.

For example:

preseed/file=/cdrom/preseed/ubuntu-server.seed ramdisk_size=16384 root=/dev/ram rw quiet --

• Make a note of the name and location of the kernel and initrd files if different from above.

Installation

On the target computer:

• Connect and power up the USB CD/DVD drive and insert the Ubuntu installation CD.
• Boot using the boot floppy.
• Load the DUSE driver

A:\> duseldr a:\duse.exe

The USB drive should be detected at this stage, otherwise refer to the DUSE documentation for further options.

• Load the CDROM extensions

A:\> MSCDEX /D:USBCDROM  /S  /M:15 /V 

Check that the CD is now readable using dir d:

• Bootstrap the Ubuntu installer from the installation CD using linld

A:\> linld097 image=d:\install\vmlinuz initrd=d:\install\initrd.gz [email protected]

Ubuntu should boot from the CD and the installer should start automatically.

Alternatives

• It should be possible to use FreeDOS instead of MS-DOS
• It should be possible to use some versions of loadlin.exe instead of linld.exe