Two ways are discussed here
English please, and no colors
export LANG=C export LC_MESSAGES=C alias ll='ls -alkF' echo 'syn off' >> ~/.vimrc apt update apt install -y man-db manpages mlocate
Freaking Ubuntu — it mounts the swap space if it finds one
swapon -s swapoff -a
And proceed
source=http://ftp.fr.netbsd.org/pub/NetBSD/NetBSD-8.0/amd64/ #source=http://ftp.fr.netbsd.org/pub/NetBSD-daily/netbsd-8/201903100010Z/amd64 wget $source/binary/kernel/netbsd-GENERIC.gz wget $source/binary/kernel/netbsd-INSTALL.gz zcat netbsd-INSTALL.gz > netbsd wget $source/binary/sets/base.tgz #wget $source/binary/sets/base.tar.xz mkdir base/ tar xzphf base.tgz -C base/ #tar xJphf base.tar.xz -C base/ ls -lF base/usr/mdec/mbr ls -lF base/usr/mdec/bootxx_ext2fs ls -lF base/usr/mdec/boot
Watch for possible errors
apt install -y binutils strings base/usr/mdec/mbr strings base/usr/mdec/bootxx_ext2fs strings base/usr/mdec/boot
Start clean
mount | grep sda #umount /mnt/dev/ #umount /mnt/ #dd if=/dev/zero of=/dev/sda bs=1M count=1
THIS WILL ERASE THE PARTITION TABLE AS WELL (512 bytes)
dd if=base/usr/mdec/mbr | hexdump -vC dd if=base/usr/mdec/mbr of=/dev/sda #dd if=base/usr/mdec/mbr of=/dev/sda bs=1 count=440
Not sure we really need to force sector 63
#fdisk -c=dos -u /dev/sda #o #n p 1 63 +25G #t a9 #a cfdisk /dev/sda 25G a9 BOOTABLE
TODO try with Linux instead of a9 and lilo (netbsd mbr wants a9)
build the filesystem without -r 0 as largefiles is available now
mkfs.ext2 -O^dir_index /dev/sda1 tune2fs -l /dev/sda1 | grep features:
gives
ext_attr resize_inode dir_index filetype sparse_super large_file
mount /dev/sda1 /mnt cp base/usr/mdec/boot /mnt/ cp netbsd-GENERIC.gz netbsd-INSTALL.gz netbsd /mnt/ umount /mnt
everything is almost zeroes so far in sectors 0,1,2-11
dd if=/dev/sda1 count=13 skip=0 | hexdump -C | less
backup the first sectors of the partition
dd if=/dev/sda1 of=sda1.13sec.bkp count=13 ls -lF sda1.13sec.bkp # 6656 bytes
WRITE
dd if=base/usr/mdec/bootxx_ext2fs of=/dev/sda1 #DO NOT #fsck.ext2 -y /dev/sda1 #ext2fs_open2: Bad magic number in super-block #fsck.ext2: Superblock invalid, trying backup blocks...
check and compare against the 13 blocks long pbr+bootxx
dd if=/dev/sda1 count=1 skip=0 | hexdump -vC dd if=/dev/sda1 count=1 skip=1 | hexdump -vC dd if=/dev/sda1 count=11 skip=2 | hexdump -vC | less dd if=base/usr/mdec/bootxx_ext2fs count=1 skip=0 | hexdump -vC dd if=base/usr/mdec/bootxx_ext2fs count=1 skip=1 | hexdump -vC dd if=base/usr/mdec/bootxx_ext2fs count=11 skip=2 | hexdump -vC | less
FOUND PROBLEM. that part has been wiped by fsck.ext2
#hexdump -vC base/usr/mdec/bootxx_ext2fs | less #dd if=/dev/sda1 count=13 | hexdump -vC | less mount /dev/sda1 /mnt diff base/usr/mdec/boot /mnt/boot diff netbsd-GENERIC.gz /mnt/netbsd-GENERIC.gz diff netbsd.gz /mnt/netbsd.gz diff MD5 /mnt/MD5 diff netbsd /mnt/netbsd umount /mnt
FAIL – Got this (no boot prompt)
NetBSD MBR boot Error no magic
==> this string is from base/usr/mdec/bootxx_ext2fs meaning that we cannot reach the secondary bootstrap so far.
apt install -y lilo mount /dev/sda1 /mnt ls -lF /mnt/ mkdir /mnt/etc
LILO’s required /boot/ folder conflicts with the NetBSD /boot secondary boot strap file. This is why we define map and backup.
vi /mnt/etc/lilo.conf
lba32
boot = /dev/sda
root = /dev/sda1
prompt
timeout = 30
vga = normal
compact
map=/bootalt/map
backup=/bootalt
other=/dev/sda1
label=netbsd
mkdir /mnt/dev/
mount -o bind /dev /mnt/dev
mkdir /mnt/bootalt/
lilo -V # 24.2
lilo -r /mnt
#lilo -P ignore -r /mnt
FAIL – Got the LILO boot prompt (boot:). It then says
Loading netbsd Error no magic
cd ~/ sync mount | grep sda umount /mnt/dev umount /mnt
and finally SWITCH TO NORMAL MODE
NetBSD MBR boot Error no slice
==> needs a9/netbsd DOS partition, not 83/linux
When running lilo
Fatal: creat /boot/boot.0800: Not a directory
==> cannot use both netbsd boot file and required boot/ folder.
Fatal: raid_setup: stat("/dev/sda")
==> /mnt/dev not binded
Fatal: First sector of /dev/sda1 doesn't have a valid boot signature strings base/usr/mdec/mbr
==> bootxx not applied