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x86.conf revision 1.2 
      1 # $NetBSD: x86.conf,v 1.2 2014/03/31 17:05:03 christos Exp $
      2 # x86 shared config
      3 #
      4 image=$HOME/${board}.img
      5 
      6 specialdirs="/kern /proc"
      7 
      8 swap=256
      9 extra=8		# spare space
     10 
     11 size=0		# autocompute
     12 netbsdid=169
     13 
     14 ffsoffset=$((63 * 512))
     15 
     16 make_label_x86() {
     17 	# compute all sizes in terms of sectors
     18 	local totalsize=$(( ${newsize} * 1024 * 2 / 512 ))
     19 
     20 	local swapsize=$(( ${swap} * 1024 ))
     21 
     22 	local aoffset=63
     23 	local asize=$(( ${totalsize} - ${swapsize} - ${aoffset} ))
     24 
     25 	local swapoffset=$(( ${aoffset} + ${asize} ))
     26 
     27 	local bps=512
     28 	local spt=32
     29 	local tpc=64
     30 	local spc=2048
     31 	local cylinders=$(( ${totalsize} / ${spc} ))
     32 
     33 	cat << EOF
     34 type: SCSI
     35 disk: STORAGE DEVICE
     36 label: fictitious
     37 flags: removable
     38 bytes/sector: ${bps}
     39 sectors/track: ${spt}
     40 tracks/cylinder: ${tpc}
     41 sectors/cylinder: ${spc}
     42 cylinders: ${cylinders}
     43 total sectors: ${totalsize}
     44 rpm: 3600
     45 interleave: 1
     46 trackskew: 0
     47 cylinderskew: 0
     48 headswitch: 0           # microseconds
     49 track-to-track seek: 0  # microseconds
     50 drivedata: 0 
     51 
     52 8 partitions:
     53 #     size         offset        fstype [fsize bsize cpg/sgs]
     54  a:   ${asize}     ${aoffset}    4.2BSD  ${fsize} ${bsize} 0  # 
     55  b:   ${swapsize}  ${swapoffset} swap                         #
     56  c:   ${totalsize} 0             unused      0     0          #
     57  d:   ${totalsize} 0             unused      0     0          #
     58 EOF
     59 }
     60 
     61 make_fstab_x86_normal() {
     62 	cat > ${mnt}/etc/fstab << EOF
     63 # NetBSD /etc/fstab
     64 # See /usr/share/examples/fstab/ for more examples.
     65 /dev/sd0a	/		ffs	rw,log	1 1
     66 /dev/sd0b	none		swap	sw	0 0
     67 kernfs		/kern		kernfs	rw
     68 ptyfs		/dev/pts	ptyfs	rw
     69 procfs		/proc		procfs	rw
     70 EOF
     71 }
     72 
     73 # From Richard Neswold's:
     74 # http://rich-tbp.blogspot.com/2013/03/netbsd-on-rpi-minimizing-disk-writes.html
     75 # Also for the postfix stuff below
     76 make_fstab_x86_minwrites() {
     77 	cat > ${mnt}/etc/fstab << EOF
     78 # NetBSD /etc/fstab
     79 # See /usr/share/examples/fstab/ for more examples.
     80 /dev/sd0a	/			ffs	rw,log,noatime,nodevmtime 1 1
     81 /dev/sd0b	none			swap	sw			  0 0
     82 kernfs		/kern			kernfs	rw
     83 ptyfs		/dev/pts		ptyfs	rw
     84 procfs		/proc			procfs	rw
     85 tmpfs		/tmp			tmpfs	rw,-s32M
     86 tmpfs		/var/log		tmpfs	rw,union,-s32M
     87 tmpfs		/var/run		tmpfs	rw,union,-s1M
     88 tmpfs		/var/mail		tmpfs	rw,union,-s10M
     89 tmpfs		/var/spool/postfix	tmpfs	rw,union,-s20M
     90 tmpfs		/var/db/postfix		tmpfs	rw,union,-s1M
     91 tmpfs		/var/chroot		tmpfs	rw,union,-s10M
     92 EOF
     93 }
     94 
     95 make_fstab_x86() {
     96 	if $minwrites; then
     97 		make_fstab_x86_minwrites
     98 	else
     99 		make_fstab_x86_normal
    100 	fi
    101 }
    102 
    103 customize_x86() {
    104 	cp ${release}/etc/rc.conf ${mnt}/etc/rc.conf
    105 	if $minwrites; then
    106 		mkdir ${mnt}/etc/postfix
    107 		(umask 022
    108 		sed -e 's/fifo/unix/' < ${release}/etc/postfix/master.cf > \
    109 		    ${mnt}/etc/postfix/master.cf)
    110 	fi
    111 	cat >> ${mnt}/etc/rc.conf << EOF
    112 rc_configured=YES
    113 hostname=${board}
    114 sshd=YES
    115 dhcpcd=YES
    116 EOF
    117 	if [ ! -f ${release}/dev/MAKEDEV ]; then
    118 		echo ${PROG}: Missing ${release}/dev/MAKEDEV 1>&2
    119 		exit 1
    120 	fi
    121 	echo "${bar} running MAKEDEV ${bar}"
    122 	${HOST_SH} ${release}/dev/MAKEDEV -s all | sed -e 's:^\./:\./dev/:' \
    123 	    >> "$tmp/selected_sets"
    124 
    125 	echo "${bar} creating directories ${bar}"
    126 	mkdir ${mnt}/proc ${mnt}/kern
    127 }
    128