wiki:Archive/FreeBSDOnEmbeddedDevice

Version 1 (modified by Rick van der Zwet, 15 years ago) ( diff )

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## Hack to find memory card and have partion entries re-read
# - No cards:
#   dd: /dev/da0: Device not configured
# - Inactive card:
#   dd: /dev/da4: Operation not permitted
# - Active card:
#   0+0 records in
#   0+0 records out
#   0 bytes transferred in 0.000018 secs (0 bytes/sec)

build# ls /dev/da? | xargs -I %%DA%% -n 1 dd if=/dev/zero of=%%DA%% count=0

Hack to _really_ all old partition information is detroyed build# dd if=/dev/zero of=/dev/da4 bs=1m count=1

build# fdisk -I /dev/da4 build# echo "a: * * 4.2BSD" | bsdlabel -R -B -m i386 /dev/da4s1 /dev/stdin build# newfs /dev/da4s1a build# mount /dev/da4s1a /mnt

build# mkdir -p /usr/data/8.0-RC2 build# cd /usr/data/8.0-RC2

build# mkdir kernels base manpages

build# cd base; echo 'mget *' | ftp -i ftp://ftp.nl.freebsd.org/pub/FreeBSD/releases/i386/8.0-RC2/base/ build# cd kernels; echo 'mget *' | ftp -i ftp://ftp.nl.freebsd.org/pub/FreeBSD/releases/i386/8.0-RC2/kernels/ build# cd manpages; echo 'mget *' | ftp -i ftp://ftp.nl.freebsd.org/pub/FreeBSD/releases/i386/8.0-RC2/manpages/

More sophisticated approach (rsync not in base) build# rsync -vaz ftp.nl.freebsd.org::FreeBSD/releases/i386/8.0-RC2/kernels .

build# setenv DESTDIR /mnt build# (cd base; sh install.sh)

To disable prompting build# (cd base; cat base.?? | tar --unlink -xpzf - -C $DESTDIR) build# (cd kernels; sh install.sh generic) build# (cd manpages; sh install.sh)

Activate right kernel build# rm -r /mnt/boot/kernel/ ; mv /mnt/boot/GENERIC/ /mnt/boot/kernel

Need resolving power at later stage inside chroot build# cp /etc/resolv.conf /mnt/etc/ build# chroot /mnt

Important: if you FAIL to chroot and continue you will now start destroying your build system

Need rw on first boot for ssh keys and such: chroot# echo "/dev/ad0s1a / ufs rw,noatime 0 0" > /etc/fstab On Soekris net4801 v1.33 Flash is secondary: chroot# echo "/dev/ad1s1a / ufs rw,noatime 0 0" > /etc/fstab

chroot# cat <<EOF > /boot/loader.conf
console=comconsole
autoboot_delay=3

hw.ata.ata_dma=0   # Soekris boot failure
EOF

Serial console boot only: chroot# echo "-h" > /boot.config

Enable serial console: chroot# sed '/ttyu0/ s/off/on /' /etc/ttys > /etc/ttys.new && mv /etc/ttys.new /etc/ttys Cosmetic: disable all vidconsoles as a soekris embedded device does not have any:

chroot# sed '/ttyv[0-7]/ s/on /off/g' /etc/ttys > /etc/ttys.new && mv /etc/ttys.new /etc/ttys

Accounting & access control chroot# echo "sshd_enable=YES" >> /etc/rc.conf chroot# passwd rootAdministive user (admin for example)

chroot# adduser -s /bin/csh -G wheel chroot# echo '%wheel ALL=(ALL) ALL' >> /usr/local/etc/sudoers

Networking chroot# echo "hostname=riff.vanderzwet.net" >> /etc/rc.conf

# Package installation using 7.2 kernel and 8.0-RC2 world is core dumping, postponing for later stage

# Make any other optional changes before first boot chroot# vi /etc/rc.conf

chroot# exit build# umount /mnt

Note: NOT READY YET: Insert card into embedded define and get yourself a prompt, using serial of ssh login.

Install the packages you like: node# pkg_add -r tinyproxy sudo vim-lite

node# echo "update_motd=NO" >> /etc/rc.conf

dnsmasq used for local network dns and dhcp: node# echo "dnsmasq_enable=YES" >> /etc/rc.conf

node# cat <<EOF > /usr/local/etc/dnsmasq.conf
interface=sis0

dhcp-range=192.168.42.100,192.168.42.200

domain=vanderzwet.net
EOF

node# echo "ntpd_enable=YES" >> /etc/rc.conf

node# cat <<EOF > /etc/ntp.conf
server 0.nl.pool.ntp.org
server 1.nl.pool.ntp.org
server 2.nl.pool.ntp.org

driftfile /var/db/ntp.drift
EOF

node# (sed '3,$ d' /etc/motd; echo "WWW: http://rickvanderzwet.nl" ) > /etc/motd.new; mv /etc/motd.new /etc/motd

node# echo "tmpmfs=YES" >> /etc/rc.conf Note: You could make /var completely read-only, but I hate the details like package management getting lost. Flash cards these days are cheap anyways

Make read-only node# echo "varmfs=YES" >> /etc/rc.conf node# sed '/1a/ s/rw/ro/' /etc/fstab > /etc/fstab.new; mv /etc/fstab.new /etc/fstab

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