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evbarm.conf revision 1.15.4.1 
      1 # $NetBSD: evbarm.conf,v 1.15.4.1 2014/11/27 11:23:04 martin Exp $
      2 # evbarm shared config
      3 #
      4 image=$HOME/${board}.img
      5 
      6 specialdirs="/kern /proc"
      7 MACHINE=evbarm
      8 
      9 swap=256
     10 extra=8		# spare space
     11 boot=112
     12 init=8
     13 ffsoffset=$(( (${init} + ${boot} + ${swap}) / 2 ))m
     14 
     15 size=0		# autocompute
     16 msdosid=12
     17 
     18 mkdir -p ${mnt}/boot
     19 
     20 make_label_evbarm() {
     21 	# compute all sizes in terms of sectors
     22 	local totalsize=$(( ${newsize} * 1024 * 2 / 512 ))
     23 
     24 	local swapsize=$(( ${swap} * 1024 ))
     25 	local bootsize=$(( ${boot} * 1024 ))
     26 
     27 	local bootoffset=$(( ${init} * 1024 ))
     28 	local swapoffset=$(( ${bootoffset} + ${bootsize} ))
     29 
     30 	local asize=$(( ${totalsize} - ${swapsize} - ${bootsize} - ${bootoffset} ))
     31 	local aoffset=$(( ${swapoffset} + ${swapsize} ))
     32 
     33 	local bps=512
     34 	local spt=32
     35 	local tpc=64
     36 	local spc=2048
     37 	local cylinders=$(( ${totalsize} / ${spc} ))
     38 
     39 	cat << EOF
     40 type: SCSI
     41 disk: STORAGE DEVICE
     42 label: fictitious
     43 flags: removable
     44 bytes/sector: ${bps}
     45 sectors/track: ${spt}
     46 tracks/cylinder: ${tpc}
     47 sectors/cylinder: ${spc}
     48 cylinders: ${cylinders}
     49 total sectors: ${totalsize}
     50 rpm: 3600
     51 interleave: 1
     52 trackskew: 0
     53 cylinderskew: 0
     54 headswitch: 0           # microseconds
     55 track-to-track seek: 0  # microseconds
     56 drivedata: 0 
     57 
     58 8 partitions:
     59 #     size         offset        fstype [fsize bsize cpg/sgs]
     60  a:   ${asize}     ${aoffset}    4.2BSD  ${fsize} ${bsize} 0  # 
     61  b:   ${swapsize}  ${swapoffset} swap                         #
     62  c:   ${totalsize} 0             unused      0     0          #
     63  d:   ${totalsize} 0             unused      0     0          #
     64  e:   ${bootsize}  ${bootoffset} MSDOS                        #
     65 EOF
     66 }
     67 
     68 make_fstab_evbarm_normal() {
     69 	cat > ${mnt}/etc/fstab << EOF
     70 # NetBSD /etc/fstab
     71 # See /usr/share/examples/fstab/ for more examples.
     72 /dev/ld0a	/		ffs	rw	1 1
     73 /dev/ld0b	none		swap	sw	0 0
     74 /dev/ld0e	/boot		msdos	rw	1 1
     75 kernfs		/kern		kernfs	rw
     76 ptyfs		/dev/pts	ptyfs	rw
     77 procfs		/proc		procfs	rw
     78 EOF
     79 }
     80 
     81 # From Richard Neswold's:
     82 # http://rich-tbp.blogspot.com/2013/03/netbsd-on-rpi-minimizing-disk-writes.html
     83 # Also for the postfix stuff below
     84 make_fstab_evbarm_minwrites() {
     85 	cat > ${mnt}/etc/fstab << EOF
     86 # NetBSD /etc/fstab
     87 # See /usr/share/examples/fstab/ for more examples.
     88 /dev/ld0a	/			ffs	rw,log,noatime,nodevmtime 1 1
     89 /dev/ld0b	none			swap	sw			  0 0
     90 /dev/ld0e	/boot			msdos	rw			  1 1
     91 kernfs		/kern			kernfs	rw
     92 ptyfs		/dev/pts		ptyfs	rw
     93 procfs		/proc			procfs	rw
     94 tmpfs		/tmp			tmpfs	rw,-s32M
     95 tmpfs		/var/log		tmpfs	rw,union,-s32M
     96 tmpfs		/var/run		tmpfs	rw,union,-s1M
     97 tmpfs		/var/mail		tmpfs	rw,union,-s10M
     98 tmpfs		/var/spool/postfix	tmpfs	rw,union,-s20M
     99 tmpfs		/var/db/postfix		tmpfs	rw,union,-s1M
    100 tmpfs		/var/chroot		tmpfs	rw,union,-s10M
    101 EOF
    102 }
    103 
    104 make_fstab_evbarm() {
    105 	if $minwrites; then
    106 		make_fstab_evbarm_minwrites
    107 	else
    108 		make_fstab_evbarm_normal
    109 	fi
    110 }
    111 
    112 customize_evbarm() {
    113 	cp ${release}/etc/rc.conf ${mnt}/etc/rc.conf
    114 	if $minwrites; then
    115 		mkdir ${mnt}/etc/postfix
    116 		(umask 022
    117 		sed -e 's/fifo/unix/' < ${release}/etc/postfix/master.cf > \
    118 		    ${mnt}/etc/postfix/master.cf)
    119 	fi
    120 	cat >> ${mnt}/etc/rc.conf << EOF
    121 rc_configured=YES
    122 hostname=${board}
    123 sshd=YES
    124 dhcpcd=YES
    125 EOF
    126 	if [ ! -f ${release}/dev/MAKEDEV ]; then
    127 		echo ${PROG}: Missing ${release}/dev/MAKEDEV 1>&2
    128 		exit 1
    129 	fi
    130 	echo "${bar} running MAKEDEV ${bar}"
    131 	${HOST_SH} ${release}/dev/MAKEDEV -s all | sed -e 's:^\./:\./dev/:' \
    132 	    >> "$tmp/selected_sets"
    133 
    134 	echo "${bar} creating directories ${bar}"
    135 	mkdir ${mnt}/proc ${mnt}/kern
    136 }
    137