Difference between revisions of "Netbsd install"

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{{warning|If you use this process, all data on the Kurobox will be lost. Make a backup of your data.}}
{{warning|If you use this process, all data on the Kurobox will be lost. Make a backup of your data.}}

Latest revision as of 20:32, 15 July 2007

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If you use this process, all data on the Kurobox will be lost. Make a backup of your data.


Overview of the installation process

First, you have to install a working GNU/Linux-distribution. I prefer a Debian installation, and will use that in this guide, but you can probably do the same with Gentoo or any other installation. We use this GNU/Linux installation to set up a working NetBSD installation on a memory stick (USB stick). From this stick we can bootstrap NetBSD by partitioning/disklabeling and copying the installation. Finally, we boot into the NetBSD installation on the harddisk.

You keep your GNU/Linux-system on your Kurobox. This is required in order to boot NetBSD.


  • A Kurobox HG (this will probably work on a regular Kurobox as well, but I did not test it. If you do, please update this page).
  • A PC to connect to the Kurobox. This can be a GNU/Linux, *BSD, Windows, Mac OS X system, anything that has a network connection, ssh and telnet.
  • An HDD in your Kurobox that is sufficiently large (a few GB should suffice).
  • A memory stick of at least 256 MB.
  • A little bit NetBSD knowledge could come in handy but it is not required.

Installing Debian GNU/Linux

Follow the steps on this page, with a few minor comments:

  • I only created a 1GB partition on /dev/hda1, but this should not matter much.
  • You probably don't need a swap partition (/dev/hda2) if you are not going to use your GNU/Linux-installation much.
  • Do not create a /dev/hda3-partition. We let NetBSD's fdisk do this.
  • I upgraded to Debian Etch but this is not necessary if you are not going to use your GNU/Linux-installation much. The Debian installation page is for Woody (3.0). This distribution is no longer supported by Debian, you should upgrade to Sarge (3.1) and then to Etch (4.0) if you are going to use Debian on a regular basis in order to get the latest security updates.
  • Do not install U-boot, keep Linux 2.4.17 or 2.4.20. (You can probably compile the module for other versions of Linux 2.4.x as well, not sure about Linux 2.6)

Installing NetBSD on your memory stick

Fetch the following files from the Internet:

Install the bunzip2-utility:
apt-get install bzip2
Make a directory for your NetBSD-stuff:
mkdir /root/netbsd ; cd /root/netbsd
FTP / SCP the above files to your Kurobox and place them in /root/netbsd
Unpack the kernel:
bunzip2 netbsd.GENERIC3.20060417.bin.bz2
Unpack the NetBSD 3.0-installation:
bunzip2 256M_BSD3.img.bz2
Unpack the Linux 2.4-modules:
bunzip nbloader_v2.20060225.tar.bz2
Make the startup-script executable:
chmod a+x netbsd_load
Determine which module to use:
ln -s nbloader_v2/binary/`uname -r`/nbloader_v2.o nbloader_v2.o
Insert your USB-stick into the Kurobox. The device will probably be /dev/sda. You can check this:
dmesg | tail
Your USB-stick will be wiped with the next command!! Copy NetBSD to the USB-stick:
dd if=256_BSD3.img of=/dev/sda bs=1M
Start NetBSD from your USB-stick:
./netbsd_load usb
If you have a DHCP-server on your network, the Kurobox will get an IP from your DHCP-server. Otherwise, it falls back to either (Kurobox) or (Kurobox HG). Determine the IP-address that your Kurobox got.
Telnet into your box (replace with your Kurobox's IP). The user is 'bsduser', no password needed.

Congratulations, you have now successfully run NetBSD.

Note: when I was doing this, a power outage in my town made my USB-stick unreadable. You have to shutdown your box with the 'halt' command (rebooting into Debian can be done with the 'reboot' command).

Installing NetBSD on your Kurobox's HDD

Next, we are going to install NetBSD on your Kurobox's hard disk drive. I assume you have booted into NetBSD.

Create a partition for NetBSD (wd0 is your first drive. This is called "hda" in Linux.)
fdisk -u wd0

Press Enter
Disk: /dev/rwd0d
NetBSD disklabel disk geometry:
cylinders: 620181, heads: 16, sectors/track: 63 (1008 sectors/cylinder)
total sectors: 625142448
BIOS disk geometry:
cylinders: 1024, heads: 255, sectors/track: 63 (16065 sectors/cylinder)
total sectors: 625142448
Do you want to change our idea of what BIOS thinks? [n]
Enter the partition you want to use for NetBSD (if you have no swap, this is 1, otherwise, as in my case, 2):
Partition table:
0: Linux native (sysid 131)
    start 63, size 2056257 (1004 MB, Cyls 0-128)
1: Linux swap or Prime or Solaris (sysid 130)
    start 2056320, size 1060290 (518 MB, Cyls 128-194)
2: NetBSD (sysid 169)
    start 3116610, size 622020735 (303721 MB, Cyls 194-38913)
Which partition do you want to change?: [none] 2
Enter 169 (the NetBSD partition type):
The data for partition 2 is:
NetBSD (sysid 169)
   start 3116610, size 622020735 (303721 MB, Cyls 194-38913)
sysid: [0..255 default: 169]
The defaults for the location of your partition are usually fine, but double check them. Finally press 'y' on:
Should we write new partition table? [n]
The NetBSD partitioning system works a little bit different from that of GNU/Linux or Windows. We now have to 'disklabel' the wd0-disk:
disklabel -i -I wd0
Create a 1GB NetBSD-"subpartition" on 'g':
partition> g
Select 4.2BSD
Filesystem type [?] [none]: 4.2BSD
Choose the partition to start after your swap-partition (which NetBSD does not detect and displays as 'unknown')
Start offset ('x' to start after partition 'x'): f
Choose 1024M:
Partition size ('$' for all remaining): 1024M
Write the new disklabel to the disk
partition> W
partition> Q
Create a new filesystem on /dev/wd0g:
newfs /dev/wd0g
Mount this filesystem:
mount /dev/wd0g /mnt
Copy over the NetBSD-installation from the USB-stick to the HDD:
cd /mnt
dump 0af - / | restore rf -
Edit /mnt/etc/fstab. Make sure the first line, first column is "/dev/wd0g" and NOT something else, or your system will not boot. Edit this with:
vi etc/fstab
Reboot into Debian:

We have installed NetBSD on your Kurobox. You can remove your USB-stick.

You can now boot into NetBSD with:
cd /root/netbsd
./netbsd_load hdd
You can telnet into your box again using the same IP as before!

Using an encrypted filesystem

To be written.