NetBSD

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Revision as of 19:30, 3 February 2009 by Chris2 (talk | contribs) (chris2's gentle guide to installing NetBSD in a prgmr DomU)

so, NetBSD-stable doesn't support PAE or AMD64, and non-PAE Xen systems are hard to come by these days. (understandably... 4GB isn't much these days.) to run on most Xen systems, you need a i386-PAE kernel or a AMD64 (x86_64 in linux nomenclature. Same thing as the AMD64 arch in NetBSD)

NetBSD-current supports both AMD64 (as a Dom0 and DomU) and i386 PAE (DomU only) This will be an overview of how to set that up (specifically on prgmr.com systems, but it should work with any provider that gives you pygrub or pvgrub or the like.)

ftp://mirror.planetunix.net/pub/NetBSD-daily/HEAD/200809050002Z/amd64/binary/kernel/netbsd-XEN3_DOMU.gz

ftp://mirror.planetunix.net/pub/NetBSD-daily/HEAD/200809050002Z/amd64/binary/kernel/netbsd-INSTALL_XEN3_DOMU.gz

in the DomU, w/ prgmr.com PyGrub,



title NetBSD install
        root (hd0,0)
        kernel /boot/netbsd-INSTALL_XEN3_DOMU

title NetBSD run
        root (hd0,0)
        kernel /boot/netbsd-XEN3_DOMU root=xbd1a


boot the XenU, select the 'NetBSD install' pygrub option

in the install install onto xbd1 (xbd0 being /boot)

choose ftp for the install media

you will need to change the base directory to something like pub/NetBSD/NetBSD-daily/HEAD/200809050002Z

go through the regular install. reboot, and boot into the netbsd kernel in pygrub Once it is up, you probably want to append ,softdep to the options field in /etc/fstab


Once you are booted into the NetBSD domU if you want to change the grub menu options, execute

mount_ext2fs /dev/xbd0d /mnt

and you can edit grub/menu.lst and change the kernel. (Note, grub will continue to load off that xbd0d partition; this is because of the way the prgmr.com system is setup. other providers may be different)

for the Dom0: http://www.netbsd.org/ports/xen/howto.html#netbsd-dom0

install current

(if disk is slow, look into softdep)


untar pkgsrc install pkgsrc/emulators/netbsd32_compat40 install pkgsrc/sysutils/xentools33 and xenkernel33

mkdir -p /xen/kernels
cp /usr/pkg/xen3-kernel/xen.gz /xen/kernels/xen-3.3.gz
cd /xen/kernels
wget ftp://mirror.planetunix.net/pub/NetBSD/NetBSD-daily/HEAD/200809050002Z/amd64/binary/kernel/netbsd-XEN3_DOM0.gz
gunzip netbsd-XEN3_DOM0.gz

now pkg_add -f ftp://ftp.netbsd.org/pub/NetBSD/packages/4.0/i386/sysutils/grub-0.97nb8.tgz


install grub

# grub --no-floppy

grub> root (hd0,a)
 Filesystem type is ffs, partition type 0xa9

grub> setup (hd0)

install menu.lst

must explicitly state console=tty0 if you are using a vga console

/etc/ifconfig.bridge0 file with:

create
!brconfig $int add ex0 up

or otherwise create the bridge on boot



chris2's gentle guide to installing NetBSD in a prgmr DomU (January 2009)

Installing NetBSD as DomU is easy, but not trivial.

Boot your preconfigured system, jot down its IP address:

eth0      Link encap:Ethernet
          inet addr:64.62.205.XXX  Bcast:64.62.205.255  Mask:255.255.255.192

On stables, shutdown the instance.

On stables, create instance, in Grub, boot "Centos Rescue".

Wait for DHCP to time out.

Setup IP with

ifconfig eth0 up 64.62.205.XXX/26
route add -net 0.0.0.0 gw 64.62.205.193 eth0

Partition /dev/xvda, create a 63mb ext2 partition as partition 1, make a directory boot/, wget and extract there (stable versions should be similar):

/pub/NetBSD-daily/netbsd-5/200901220000Z/amd64/binary/kernel/netbsd-INSTALL_XEN3_DOMU.gz
/pub/NetBSD-daily/netbsd-5/200901220000Z/amd64/binary/kernel/netbsd-XEN3_DOMU.gz

(or newer)

Create a file boot/grub/menu.lst with this content:

timeout 5

title NetBSD run
        root (hd0,0)
        kernel /boot/netbsd-XEN3_DOMU

title NetBSD install
        root (hd0,0)
        kernel /boot/netbsd-INSTALL_XEN3_DOMU

Shutdown again.

Create instance. Boot first grub item, then pick "NetBSD install".

Install onto xbd0(!).

IMPORTANT: Change disklabel such that xbd0a starts after 64mb. Add a disklabel for the /boot partition, so you can update the kernels and adjust the menu.lst later. (You can find out its sectors by using fdisk /dev/xbd0).

Install by FTP, setup networking by the noted data. Adjust the FTP paths to the snapshot you use.

Reboot, now with "NetBSD run".

Congratulations!

19:30, 3 February 2009 (UTC)