xref: /src/distrib/utils/embedded/conf/evbarm.conf

# $NetBSD: evbarm.conf,v 1.12 2013/07/05 15:45:17 matt Exp $
# evbarm shared config
#
image=$HOME/${board}.img

specialdirs="/kern /proc"

swap=256
extra=8		# spare space
boot=112
init=8

size=0		# autocompute
msdosid=12

make_label_evbarm() {
	# compute all sizes in terms of sectors
	local totalsize=$(( ${newsize} * 1024 * 2 / 512 ))

	local swapsize=$(( ${swap} * 1024 ))
	local bootsize=$(( ${boot} * 1024 ))

	local bootoffset=$(( ${init} * 1024 ))
	local swapoffset=$(( ${bootoffset} + ${bootsize} ))

	local asize=$(( ${totalsize} - ${swapsize} - ${bootsize} - ${bootoffset} ))
	local aoffset=$(( ${swapoffset} + ${swapsize} ))

	local bps=512
	local spt=32
	local tpc=64
	local spc=2048
	local cylinders=$(( ${totalsize} / ${spc} ))

	cat << EOF
type: SCSI
disk: STORAGE DEVICE
label: fictitious
flags: removable
bytes/sector: ${bps}
sectors/track: ${spt}
tracks/cylinder: ${tpc}
sectors/cylinder: ${spc}
cylinders: ${cylinders}
total sectors: ${totalsize}
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0           # microseconds
track-to-track seek: 0  # microseconds
drivedata: 0 

8 partitions:
#     size         offset        fstype [fsize bsize cpg/sgs]
 a:   ${asize}     ${aoffset}    4.2BSD  ${fsize} ${bsize} 0  # 
 b:   ${swapsize}  ${swapoffset} swap                         #
 c:   ${totalsize} 0             unused      0     0          #
 d:   ${totalsize} 0             unused      0     0          #
 e:   ${bootsize}  ${bootoffset} MSDOS                        #
EOF
}

make_fstab_evbarm_normal() {
	cat > ${mnt}/etc/fstab << EOF
# NetBSD /etc/fstab
# See /usr/share/examples/fstab/ for more examples.
/dev/ld0a	/		ffs	rw,log	1 1
/dev/ld0b	none		swap	sw	0 0
/dev/ld0e	/boot		msdos	rw	1 1
kernfs		/kern		kernfs	rw
ptyfs		/dev/pts	ptyfs	rw
procfs		/proc		procfs	rw
EOF
}

# From Richard Neswold's:
# http://rich-tbp.blogspot.com/2013/03/netbsd-on-rpi-minimizing-disk-writes.html
# Also for the postfix stuff below
make_fstab_evbarm_minwrites() {
	cat > ${mnt}/etc/fstab << EOF
# NetBSD /etc/fstab
# See /usr/share/examples/fstab/ for more examples.
/dev/ld0a	/			ffs	rw,log,noatime,nodevmtime 1 1
/dev/ld0b	none			swap	sw			  0 0
/dev/ld0e	/boot			msdos	rw			  1 1
kernfs		/kern			kernfs	rw
ptyfs		/dev/pts		ptyfs	rw
procfs		/proc			procfs	rw
tmpfs		/tmp			tmpfs	rw,-s32M
tmpfs		/var/log		tmpfs	rw,union,-s32M
tmpfs		/var/run		tmpfs	rw,union,-s1M
tmpfs		/var/mail		tmpfs	rw,union,-s10M
tmpfs		/var/spool/postfix	tmpfs	rw,union,-s20M
tmpfs		/var/db/postfix		tmpfs	rw,union,-s1M
tmpfs		/var/chroot		tmpfs	rw,union,-s10M
EOF
}

make_fstab_evbarm() {
	if $minwrites; then
		make_fstab_evbarm_minwrites
	else
		make_fstab_evbarm_normal
	fi
}

customize_evbarm() {
	cp ${release}/etc/rc.conf ${mnt}/etc/rc.conf
	if $minwrites; then
		mkdir ${mnt}/etc/postfix
		(umask 022
		sed -e 's/fifo/unix/' < ${release}/etc/postfix/master.cf > \
		    ${mnt}/etc/postfix/master.cf)
	fi
	cat >> ${mnt}/etc/rc.conf << EOF
rc_configured=YES
hostname=${board}
sshd=YES
dhcpcd=YES
EOF
	if [ ! -f ${release}/dev/MAKEDEV ]; then
		echo ${PROG}: Missing ${release}/dev/MAKEDEV 1>&2
		exit 1
	fi
	echo "${bar} running MAKEDEV ${bar}"
	(cd ${mnt}/dev && ${HOST_SH} ${release}/dev/MAKEDEV all)

	echo "${bar} creating directories ${bar}"
	mkdir ${mnt}/proc ${mnt}/kern
}