Já jsem řešil podobný problém (absence vypalovačky) pomocí návodu na
https://help.ubuntu.com/community/Installation/FromLinux , konkrétně
The benefits of installing without external media are that it can save you time if you are already familiar with the process, and you get a very usable system upon booting into the installer because it is running from a hard drive rather than a CD.
Step 1. Use gparted to create a new primary partition and format it to ext3. You need slightly more than 700MB of free space on it. 750MB should be sufficient. Let's say the name of the partition is /dev/sda1. If your new ubuntu install is going to coexist with your old system, you might find it convenient to create space for your new system as well at this point using gparted.
Step 2. Copy CD contents over to the new partition using the command
mkdir /tmp/install_cd
sudo mount disk-image.iso -o loop /tmp/install_cd
sudo mkdir /mnt/installer
sudo mount /dev/sda1 /mnt/installer
sudo cp -r /tmp/install_cd/* /mnt/installer
sudo cp -r /tmp/install_cd/.disk /mnt/installer
sudo umount /tmp/install_cd
Replace the name of the iso to whatever you downloaded and /dev/sda1 with whatever your new partition is.
Step 3. Edit your grub configuration file (typically /etc/grub.conf or /boot/grub/menu.lst) to boot from the new partition by adding the lines
title installer
root (hd0,0)
kernel /casper/vmlinuz boot=casper root=/dev/ram ramdisk_size=1048576 rw
initrd /casper/initrd.gz
The first line after the title tells grub which partition contains the installer. hd0 stands for "first hard disk," and the 0 following it standards for first partition. You will need to change this if your installer partition is different from /dev/sda1. sdaN becomes (hd0, N-1), sdbN becomes (hd1,N-1) and so on. As you can see, grub starts counting from 0, which can be confusing.
Step 4. Reboot, and choose "installer" from the grub boot menu, and continue as if you were installing from CD.
Dnes mám pro jistotu nachystán starší HDD (30), na něm grub a disk je rozdělen na několik partitions (U7.10, K7.10, U8.04, K8.04, OpenSUSE 10.3,11.0beta), a pokud někdo známý chce nainstalovat ubuntu, ochotně přijdu s diskem, zapojím (případně zedituji pořadí disku v grubu) a nainstaluji mu co chce a navíc je to i rychlejší než z CD...
A pokud si chci nějakou distribuci jen na chvilku vyzkoušet, tzv. osahat, tak pak nepotřebuju doma skladovat další a další CD.
V podstatě je to použitelné pro jakékoli boot cd, akorat je treba znat cesty k vmlinuz a initrd.gz
Téma: Instalace vyžaduje CD-ROM [vyřešeno] (Přečteno 4517 krát)