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evbarm.conf revision 1.15.4.2 
      1 # $NetBSD: evbarm.conf,v 1.15.4.2 2015/01/28 11:27:03 martin Exp $
      2 # evbarm shared config
      3 #
      4 image=$HOME/${board}.img
      5 
      6 MACHINE=evbarm
      7 
      8 swap=256
      9 extra=8		# spare space
     10 boot=112
     11 init=8
     12 ffsoffset=$(( (${init} + ${boot} + ${swap}) / 2 ))m
     13 
     14 size=0		# autocompute
     15 msdosid=12
     16 
     17 mkdir -p ${mnt}/boot
     18 
     19 make_label_evbarm() {
     20 	# compute all sizes in terms of sectors
     21 	local totalsize=$(( ${newsize} * 1024 * 2 / 512 ))
     22 
     23 	local swapsize=$(( ${swap} * 1024 ))
     24 	local bootsize=$(( ${boot} * 1024 ))
     25 
     26 	local bootoffset=$(( ${init} * 1024 ))
     27 	local swapoffset=$(( ${bootoffset} + ${bootsize} ))
     28 
     29 	local asize=$(( ${totalsize} - ${swapsize} - ${bootsize} - ${bootoffset} ))
     30 	local aoffset=$(( ${swapoffset} + ${swapsize} ))
     31 
     32 	local bps=512
     33 	local spt=32
     34 	local tpc=64
     35 	local spc=2048
     36 	local cylinders=$(( ${totalsize} / ${spc} ))
     37 
     38 	cat << EOF
     39 type: SCSI
     40 disk: STORAGE DEVICE
     41 label: fictitious
     42 flags: removable
     43 bytes/sector: ${bps}
     44 sectors/track: ${spt}
     45 tracks/cylinder: ${tpc}
     46 sectors/cylinder: ${spc}
     47 cylinders: ${cylinders}
     48 total sectors: ${totalsize}
     49 rpm: 3600
     50 interleave: 1
     51 trackskew: 0
     52 cylinderskew: 0
     53 headswitch: 0           # microseconds
     54 track-to-track seek: 0  # microseconds
     55 drivedata: 0 
     56 
     57 8 partitions:
     58 #     size         offset        fstype [fsize bsize cpg/sgs]
     59  a:   ${asize}     ${aoffset}    4.2BSD  ${fsize} ${bsize} 0  # 
     60  b:   ${swapsize}  ${swapoffset} swap                         #
     61  c:   ${totalsize} 0             unused      0     0          #
     62  d:   ${totalsize} 0             unused      0     0          #
     63  e:   ${bootsize}  ${bootoffset} MSDOS                        #
     64 EOF
     65 }
     66 
     67 make_fstab_evbarm_normal() {
     68 	cat > ${mnt}/etc/fstab << EOF
     69 # NetBSD /etc/fstab
     70 # See /usr/share/examples/fstab/ for more examples.
     71 /dev/ld0a	/		ffs	rw	1 1
     72 /dev/ld0b	none		swap	sw	0 0
     73 /dev/ld0e	/boot		msdos	rw	1 1
     74 kernfs		/kern		kernfs	rw
     75 ptyfs		/dev/pts	ptyfs	rw
     76 procfs		/proc		procfs	rw
     77 EOF
     78 }
     79 
     80 # From Richard Neswold's:
     81 # http://rich-tbp.blogspot.com/2013/03/netbsd-on-rpi-minimizing-disk-writes.html
     82 # Also for the postfix stuff below
     83 make_fstab_evbarm_minwrites() {
     84 	cat > ${mnt}/etc/fstab << EOF
     85 # NetBSD /etc/fstab
     86 # See /usr/share/examples/fstab/ for more examples.
     87 /dev/ld0a	/			ffs	rw,log,noatime,nodevmtime 1 1
     88 /dev/ld0b	none			swap	sw			  0 0
     89 /dev/ld0e	/boot			msdos	rw			  1 1
     90 kernfs		/kern			kernfs	rw
     91 ptyfs		/dev/pts		ptyfs	rw
     92 procfs		/proc			procfs	rw
     93 tmpfs		/tmp			tmpfs	rw,-s32M
     94 tmpfs		/var/log		tmpfs	rw,union,-s32M
     95 tmpfs		/var/run		tmpfs	rw,union,-s1M
     96 tmpfs		/var/mail		tmpfs	rw,union,-s10M
     97 tmpfs		/var/spool/postfix	tmpfs	rw,union,-s20M
     98 tmpfs		/var/db/postfix		tmpfs	rw,union,-s1M
     99 tmpfs		/var/chroot		tmpfs	rw,union,-s10M
    100 EOF
    101 }
    102 
    103 make_fstab_evbarm() {
    104 	if $minwrites; then
    105 		make_fstab_evbarm_minwrites
    106 	else
    107 		make_fstab_evbarm_normal
    108 	fi
    109 	echo "./etc/fstab type=file uname=root gname=wheel mode=0644" \
    110 	    >> "$tmp/selected_sets"
    111 }
    112 
    113 customize_evbarm() {
    114 	cp ${release}/etc/rc.conf ${mnt}/etc/rc.conf
    115 	if $minwrites; then
    116 		mkdir ${mnt}/etc/postfix
    117 		(umask 022
    118 		sed -e 's/fifo/unix/' < ${release}/etc/postfix/master.cf > \
    119 		    ${mnt}/etc/postfix/master.cf)
    120 	fi
    121 	cat >> ${mnt}/etc/rc.conf << EOF
    122 rc_configured=YES
    123 hostname=${board}
    124 sshd=YES
    125 dhcpcd=YES
    126 EOF
    127 	if [ ! -f ${release}/dev/MAKEDEV ]; then
    128 		echo ${PROG}: Missing ${release}/dev/MAKEDEV 1>&2
    129 		exit 1
    130 	fi
    131 	echo "${bar} running MAKEDEV ${bar}"
    132 	${HOST_SH} ${release}/dev/MAKEDEV -s all | sed -e 's:^\./:\./dev/:' \
    133 	    >> "$tmp/selected_sets"
    134 
    135 	echo "${bar} fixing up permissions"
    136 	echo "./boot type=dir uname=root gname=wheel mode=0755" \
    137 	    >> "$tmp/selected_sets"
    138 }
    139