release/scripts/doFS.sh

   1 #!/bin/sh
   2 #
   3 # $FreeBSD$
   4 #
   5
   6 set -ex
   7
   8 export BLOCKSIZE=512
   9
  10 DISKLABEL=$1; shift
  11 MACHINE=${1:+"-m $1"}; shift
  12 FSIMG=$1; shift
  13 RD=$1 ; shift
  14 MNT=$1 ; shift
  15 FSSIZE=$1 ; shift
  16 FSPROTO=$1 ; shift
  17 FSINODE=$1 ; shift
  18 FSLABEL=$1 ; shift
  19
  20 #
  21 # If we've been told to, compute the required file system size
  22 # and average inode size automatically.
  23 #
  24 if [ ${FSSIZE} -eq 0 -a ${FSLABEL} = "auto" ]; then
  25         roundup() echo $((($1+$2-1)-($1+$2-1)%$2))
  26         nf=$(find ${FSPROTO} |wc -l)
  27         sk=$(du -sk ${FSPROTO} |cut -f1)
  28         FSINODE=$(roundup $(($sk*1024/$nf)) ${FSINODE})
  29         FSSIZE=$(roundup $(($sk*12/10)) 1024)
  30 fi
  31
  32 dofs_vn () {
  33         if [ "x$VNDEVICE" = "x" ] ; then
  34                 VNDEVICE=vn0
  35         fi
  36         u=`expr $VNDEVICE : 'vn\([0-9]*\)' || true`
  37         VNDEVICE=vnn$u
  38
  39         rm -f /dev/*vnn*
  40         mknod /dev/rvnn${u} c 43 `expr 65538 + $u '*' 8`
  41         mknod /dev/rvnn${u}c c 43 `expr 2 + $u '*' 8`
  42         mknod /dev/vnn${u} b 15 `expr 65538 + $u '*' 8`
  43         mknod /dev/vnn${u}c b 15 `expr 2 + $u '*' 8`
  44
  45         umount /dev/${VNDEVICE} 2>/dev/null || true
  46         umount ${MNT} 2>/dev/null || true
  47         vnconfig -u /dev/r${VNDEVICE} 2>/dev/null || true
  48
  49         vnconfig -s labels -c /dev/r${VNDEVICE} ${FSIMG}
  50
  51         trap "umount ${MNT}; vnconfig -u /dev/r${VNDEVICE}; rm -f /dev/*vnn*" EXIT
  52
  53         disklabel -w ${BOOT} ${VNDEVICE} ${FSLABEL}
  54         newfs -i ${FSINODE} -o space -m 0 /dev/r${VNDEVICE}c
  55
  56         mount /dev/${VNDEVICE}c ${MNT}
  57 }
  58
  59 dofs_md () {
  60         if [ "x${MDDEVICE}" != "x" ] ; then
  61                 umount /dev/${MDDEVICE} 2>/dev/null || true
  62                 umount ${MNT} 2>/dev/null || true
  63                 mdconfig -d -u ${MDDEVICE} 2>/dev/null || true
  64         fi
  65
  66         MDDEVICE=`mdconfig -a -t vnode -f ${FSIMG}`
  67         if [ ! -c /dev/${MDDEVICE} ] ; then
  68                 echo "No /dev/$MDDEVICE" 1>&2
  69                 exit 1
  70         fi
  71
  72         trap "umount ${MNT}; mdconfig -d -u ${MDDEVICE}" EXIT
  73
  74         if [ "x${DISKLABEL}" != "x" ] ; then
  75                 ${DISKLABEL} ${MACHINE} -w ${BOOT} ${MDDEVICE} ${FSLABEL}
  76         fi
  77         newfs -O1 -b 4096 -f 512 -i ${FSINODE} -o space -m 0 /dev/${MDDEVICE}
  78         mount /dev/${MDDEVICE} ${MNT}
  79 }
  80
  81 rm -f ${FSIMG}
  82 dd of=${FSIMG} if=/dev/zero count=${FSSIZE} bs=1k 2>/dev/null
  83
  84 #
  85 # We don't have any bootblocks on ia64. Note that -B implies -r,
  86 # so we have to specifically specify -r when we don't have -B.
  87 # bsdlabel fails otherwise.
  88 #
  89 case `uname -r` in
  90 4.*)
  91         if [ -f "${RD}/trees/base/boot/boot1" ]; then
  92                 BOOT="-B -b ${RD}/trees/base/boot/boot1"
  93                 if [ -f "${RD}/trees/base/boot/boot2" ]; then
  94                         BOOT="${BOOT} -s ${RD}/trees/base/boot/boot2"
  95                 fi
  96         else
  97                 BOOT="-r"
  98         fi
  99         dofs_vn
 100         ;;
 101 *)
 102         if [ -f "${RD}/trees/base/boot/boot" ]; then
 103                 BOOT="-B -b ${RD}/trees/base/boot/boot"
 104         else
 105                 BOOT="-r"
 106         fi
 107         dofs_md
 108         ;;
 109 esac
 110
 111 if [ -d ${FSPROTO} ]; then
 112         (set -e && cd ${FSPROTO} && find . -print | cpio -dump ${MNT})
 113 else
 114         cp -p ${FSPROTO} ${MNT}
 115 fi
 116
 117 df -ki ${MNT}
 118
 119 set `df -ki ${MNT} | tail -1`
 120
 121 echo "*** File system is ${FSSIZE} K, $4 left"
 122 echo "***     ${FSINODE} bytes/inode, $7 left"