xref: /netbsd/distrib/alpha/README.files (revision bf9ec67e)
1$NetBSD: README.files,v 1.13 1999/09/20 08:18:31 ross Exp $
2
3	   Tape, CD, Disk, and Netboot Images
4	   ----- --- ----- --- ------- ------
5
6This release or snapshot contains three installation image types,
7the first, for floppies, is split into a multiple volume set.
8
9	installation/floppy/disk1of2
10	installation/floppy/disk2of2
11
12	installation/diskimage/cdhdtape
13
14	installation/instkernel/netbsd.gz
15
16All three boot images load the same installation kernel into memory
17and then make no further use of the source media. The general idea
18is to load a kernel with a pre-initialized memory filesystem of
19utilities and an installation program.
20
21The floppy image set uses two floppies to load the install kernel.
22The cdhdtape image can be written to a CD, hard drive, or tape and
23then booted from the SRM console. The kernel image can be netbooted
24or loaded off the root directory of an existing installation.
25
26Note:	The netboot loader can load the netbsd.gz file directly; it
27	is not necessary to ungzip this kernel first.
28
29To copy the boot images to a magnetic disk under unix, the dd(1)
30command can be used:
31
32Floppy:
33	dd if=disk1of2 of=/dev/rfd0a bs=18k
34	(change floppies)
35	dd if=disk2of2 of=/dev/rfd0a bs=18k
36
37You can write the image to a hard drive too:
38
39	dd bs=18k if=cdhdtape of=/dev/rsd1c
40	dd bs=18k if=cdhdtape of=/dev/rsd1d (NetBSD/i386)
41
42For a tape, it is important to use a block size of 512, so:
43
44	dd bs=512 if=cdhdtape of=/dev/erst0	(NetBSD)
45	dd bs=512 if=cdhdtape of=/dev/rmt0h	(Digital Unix)
46
47Note that the bits on the installation media are only used when
48initially loaded. They can be written to a hard drive, loaded, and
49then overwritten during the installation with no conflict, or
50alternatively, the boot CD or tape can be removed and replaced with
51one containing the installation sets.
52
53The install notes from this directory subtree are present on the
54installation file system.
55