# $NetBSD: x86.conf,v 1.10 2021/07/06 11:49:36 jmcneill Exp $
# x86 shared config
#

image=$HOME/${board}.img
MACHINE=${board}
kernel=$src/sys/arch/${board}/compile/GENERIC/netbsd
bootfile=$release/usr/mdec/boot

extra=8		# spare space
size=0		# autocompute
netbsdid=169
init=63
ffsoffset=${init}b

make_label() {
	# compute all sizes in terms of sectors
	local totalsize=$(( ${size} / 512 ))

	local aoffset=${init}
	local asize=$(( ${totalsize} - ${aoffset} ))

	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  # 
 c:   ${totalsize} 0             unused      0     0          #
 d:   ${totalsize} 0             unused      0     0          #
EOF
}

make_fstab_normal() {
	cat > ${mnt}/etc/fstab << EOF
# NetBSD /etc/fstab
# See /usr/share/examples/fstab/ for more examples.
/dev/${rootdev}0a	/		ffs	rw,log	1 1
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_minwrites() {
	cat > ${mnt}/etc/fstab << EOF
# NetBSD /etc/fstab
# See /usr/share/examples/fstab/ for more examples.
/dev/${rootdev}0a	/			ffs	rw,log,noatime,nodevmtime 1 1
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() {
	if $minwrites; then
		make_fstab_minwrites
	else
		make_fstab_normal
	fi
	echo "./etc/fstab type=file uname=root gname=wheel mode=0755" \
	    >> "$tmp/selected_sets"

	echo "./proc type=dir uname=root gname=wheel mode=0755" \
	    >> "$tmp/selected_sets"
}

customize() {
	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
wscons=YES
devpubd=YES
EOF
	echo "./etc/rc.conf type=file uname=root gname=wheel mode=0644" \
	    >> "$tmp/selected_sets"

	if [ ! -f ${release}/dev/MAKEDEV ]; then
		echo ${PROG}: Missing ${release}/dev/MAKEDEV 1>&2
		exit 1
	fi
	echo "${bar} running MAKEDEV ${bar}"
	${HOST_SH} ${release}/dev/MAKEDEV -s all | sed -e 's:^\./:\./dev/:' \
	    >> "$tmp/selected_sets"
}

populate() {
	if [ ! -f ${kernel} ]; then
		echo ${PROG}: Missing ${kernel} 1>&2
		exit 1
	fi

	echo "${bar} installing kernel ${bar}"
	cp ${kernel} ${mnt}/netbsd
	if [ ! -f ${bootfile} ]; then
		echo ${PROG}: Missing ${bootfile} 1>&2
		exit 1
	fi
	cp ${bootfile} ${mnt}/boot ||
	    fail "copy of ${bootfile} to ${mnt}/boot failed"

	echo "./netbsd type=file uname=root gname=wheel mode=0755" \
	    >> "$tmp/selected_sets"
	echo "./boot type=file uname=root gname=wheel mode=0444" \
	    >> "$tmp/selected_sets"
}