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evbarm.conf revision 1.12 
      1 # $NetBSD: evbarm.conf,v 1.12 2013/07/05 15:45:17 matt Exp $
      2 # evbarm shared config
      3 #
      4 image=$HOME/${board}.img
      5 
      6 specialdirs="/kern /proc"
      7 
      8 swap=256
      9 extra=8		# spare space
     10 boot=112
     11 init=8
     12 
     13 size=0		# autocompute
     14 msdosid=12
     15 
     16 make_label_evbarm() {
     17 	# compute all sizes in terms of sectors
     18 	local totalsize=$(( ${newsize} * 1024 * 2 / 512 ))
     19 
     20 	local swapsize=$(( ${swap} * 1024 ))
     21 	local bootsize=$(( ${boot} * 1024 ))
     22 
     23 	local bootoffset=$(( ${init} * 1024 ))
     24 	local swapoffset=$(( ${bootoffset} + ${bootsize} ))
     25 
     26 	local asize=$(( ${totalsize} - ${swapsize} - ${bootsize} - ${bootoffset} ))
     27 	local aoffset=$(( ${swapoffset} + ${swapsize} ))
     28 
     29 	local bps=512
     30 	local spt=32
     31 	local tpc=64
     32 	local spc=2048
     33 	local cylinders=$(( ${totalsize} / ${spc} ))
     34 
     35 	cat << EOF
     36 type: SCSI
     37 disk: STORAGE DEVICE
     38 label: fictitious
     39 flags: removable
     40 bytes/sector: ${bps}
     41 sectors/track: ${spt}
     42 tracks/cylinder: ${tpc}
     43 sectors/cylinder: ${spc}
     44 cylinders: ${cylinders}
     45 total sectors: ${totalsize}
     46 rpm: 3600
     47 interleave: 1
     48 trackskew: 0
     49 cylinderskew: 0
     50 headswitch: 0           # microseconds
     51 track-to-track seek: 0  # microseconds
     52 drivedata: 0 
     53 
     54 8 partitions:
     55 #     size         offset        fstype [fsize bsize cpg/sgs]
     56  a:   ${asize}     ${aoffset}    4.2BSD  ${fsize} ${bsize} 0  # 
     57  b:   ${swapsize}  ${swapoffset} swap                         #
     58  c:   ${totalsize} 0             unused      0     0          #
     59  d:   ${totalsize} 0             unused      0     0          #
     60  e:   ${bootsize}  ${bootoffset} MSDOS                        #
     61 EOF
     62 }
     63 
     64 make_fstab_evbarm_normal() {
     65 	cat > ${mnt}/etc/fstab << EOF
     66 # NetBSD /etc/fstab
     67 # See /usr/share/examples/fstab/ for more examples.
     68 /dev/ld0a	/		ffs	rw,log	1 1
     69 /dev/ld0b	none		swap	sw	0 0
     70 /dev/ld0e	/boot		msdos	rw	1 1
     71 kernfs		/kern		kernfs	rw
     72 ptyfs		/dev/pts	ptyfs	rw
     73 procfs		/proc		procfs	rw
     74 EOF
     75 }
     76 
     77 # From Richard Neswold's:
     78 # http://rich-tbp.blogspot.com/2013/03/netbsd-on-rpi-minimizing-disk-writes.html
     79 # Also for the postfix stuff below
     80 make_fstab_evbarm_minwrites() {
     81 	cat > ${mnt}/etc/fstab << EOF
     82 # NetBSD /etc/fstab
     83 # See /usr/share/examples/fstab/ for more examples.
     84 /dev/ld0a	/			ffs	rw,log,noatime,nodevmtime 1 1
     85 /dev/ld0b	none			swap	sw			  0 0
     86 /dev/ld0e	/boot			msdos	rw			  1 1
     87 kernfs		/kern			kernfs	rw
     88 ptyfs		/dev/pts		ptyfs	rw
     89 procfs		/proc			procfs	rw
     90 tmpfs		/tmp			tmpfs	rw,-s32M
     91 tmpfs		/var/log		tmpfs	rw,union,-s32M
     92 tmpfs		/var/run		tmpfs	rw,union,-s1M
     93 tmpfs		/var/mail		tmpfs	rw,union,-s10M
     94 tmpfs		/var/spool/postfix	tmpfs	rw,union,-s20M
     95 tmpfs		/var/db/postfix		tmpfs	rw,union,-s1M
     96 tmpfs		/var/chroot		tmpfs	rw,union,-s10M
     97 EOF
     98 }
     99 
    100 make_fstab_evbarm() {
    101 	if $minwrites; then
    102 		make_fstab_evbarm_minwrites
    103 	else
    104 		make_fstab_evbarm_normal
    105 	fi
    106 }
    107 
    108 customize_evbarm() {
    109 	cp ${release}/etc/rc.conf ${mnt}/etc/rc.conf
    110 	if $minwrites; then
    111 		mkdir ${mnt}/etc/postfix
    112 		(umask 022
    113 		sed -e 's/fifo/unix/' < ${release}/etc/postfix/master.cf > \
    114 		    ${mnt}/etc/postfix/master.cf)
    115 	fi
    116 	cat >> ${mnt}/etc/rc.conf << EOF
    117 rc_configured=YES
    118 hostname=${board}
    119 sshd=YES
    120 dhcpcd=YES
    121 EOF
    122 	if [ ! -f ${release}/dev/MAKEDEV ]; then
    123 		echo ${PROG}: Missing ${release}/dev/MAKEDEV 1>&2
    124 		exit 1
    125 	fi
    126 	echo "${bar} running MAKEDEV ${bar}"
    127 	(cd ${mnt}/dev && ${HOST_SH} ${release}/dev/MAKEDEV all)
    128 
    129 	echo "${bar} creating directories ${bar}"
    130 	mkdir ${mnt}/proc ${mnt}/kern
    131 }
    132