The installer may be booted using boot files placed on an existing hard drive partition, either launched from another operating system or by invoking a boot loader directly from the BIOS. On modern UEFI systems, the kernel may be booted directly from the UEFI partition without the need of a boot loader.
A full, «pure network» installation can be achieved using this technique. This avoids all hassles of removable media, like finding and burning CD/DVD images.
This section explains how to add to or even replace an existing linux installation using GRUB.
At boot time, GRUB supports loading in memory not only the kernel, but also a disk image. This RAM disk can be used as the root file-system by the kernel.
Copy the following files from the Debian archives to a convenient location on your hard drive, for instance to /boot/newinstall/
.
vmlinuz
(файл ядра)
initrd.gz
(образ ramdisk)
Если вы намереваетесь использовать жёсткий диск только для загрузки, а затем выполнять установку по сети, то вы должны скачать файл netboot/debian-installer/amd64/initrd.gz и соответствующее ему ядро netboot/debian-installer/amd64/linux. Это позволит вам переразметить жёсткий диск с которого вы загрузились, хотя вы должны делать это осторожно.
Alternatively, if you intend to keep an existing partition on the hard drive unchanged during the install, you can download the hd-media/initrd.gz file and its kernel hd-media/vmlinuz, as well as copy an installation image to the hard drive (make sure the file is named ending in .iso
). The installer can then boot from the hard drive and install from the installation image, without needing the network.
Настройте системный загрузчик следуя указаниям Раздел 5.1.3, «Booting from Linux using GRUB».