Bootable FreeBSD 6.1-BETA4 on USB-Flash-Drive

Source:  
http://groups.google.com/group/lucky.freebsd.questions/msg/5c759b1c87376b22
  
  
  
  
  
  Grossmann Martin
   
  
  
  
  
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  2006年3月31日, 下午1時44分
  
  
  
  
  
  
  
  
  新聞群組： lucky.freebsd.questions
  寄件者： "Grossmann Martin"
  日期： Fri, 31 Mar 2006 20:44:08 +0200
  當地時間： 2006年3月31日(星期五) 下午1時44分
  主旨： bootable FreeBSD on USB-Flash-Drive [SOLUTION]
  
  
  
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  a little success story with freebsd and a tiny usb stick:
[tried with FreeBSD 6.1-BETA4 install-cd and a kingston 256MB
usb-flash-drive]

prepare yourself to work on the command-line ;-)
- attach the usb-stick to the server
- boot the freebsd installation cd-rom
- go to the "fixit" shell
- CHECK YOUR DMESG WHAT DEVICE YOUR USB STICK ACTUALLY IS!!! (here /dev/da0)

create the future "/"-filesystem on your usb-drive:

wipe everything on the usb-drive:
# dd if=/dev/zero of=/dev/da0 bs=1m
create a new partition table on it with a default slice 1 and make it
bootable
# fdisk -BI /dev/da0
label it for booting freebsd:
# bsdlabel -wB /dev/da0s1
you'll have to edit the disklabel (sometimes you'll have to: # export
EDITOR=/mnt2/usr/bin/vi):
# bsdlabel -e /dev/da0s1
... and change partition a from "unused" to "4.2BSD" as partition type
create the future "/" a.k.a. root-filesystem on it:
# newfs -m 0 -o space /dev/da0s1a

mount the filesystem for installation:
# mount /dev/da0s1a /mnt

install freebsd on /mnt:
# export DESTDIR=/mnt
# cd /dist/
# for i in base manpages catpages
# do
#   cd $i; echo y|./install.sh; cd ..;
# done

go to the kernels directory and install a kernel of your choice:
[default is GENERIC kernel; change to "smp" for smp-machines]
# rmdir /mnt/boot/kernel
# cd kernels;

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