1#!/bin/sh 2# 3# $FreeBSD$ 4# 5# 6# Common functions for virtual machine image build scripts. 7# 8 9scriptdir=$(dirname $(realpath $0)) 10. ${scriptdir}/../../tools/boot/install-boot.sh 11 12export PATH="/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin" 13trap "cleanup" INT QUIT TRAP ABRT TERM 14 15# Platform-specific large-scale setup 16# Most platforms use GPT, so put that as default, then special cases 17PARTSCHEME=gpt 18ROOTLABEL="gpt" 19case "${TARGET}:${TARGET_ARCH}" in 20 powerpc:powerpc*) 21 PARTSCHEME=mbr 22 ROOTLABEL="ufs" 23 NOSWAP=yes # Can't label swap partition with MBR, so no swap 24 ;; 25esac 26 27err() { 28 printf "${@}\n" 29 cleanup 30 return 1 31} 32 33cleanup() { 34 if [ -c "${DESTDIR}/dev/null" ]; then 35 umount_loop ${DESTDIR}/dev 2>/dev/null 36 fi 37 38 return 0 39} 40 41vm_create_base() { 42 43 mkdir -p ${DESTDIR} 44 45 return 0 46} 47 48vm_copy_base() { 49 # Defunct 50} 51 52vm_install_base() { 53 # Installs the FreeBSD userland/kernel to the virtual machine disk. 54 55 cd ${WORLDDIR} && \ 56 make DESTDIR=${DESTDIR} \ 57 installworld installkernel distribution || \ 58 err "\n\nCannot install the base system to ${DESTDIR}." 59 60 # Bootstrap etcupdate(8) and mergemaster(8) databases. 61 mkdir -p ${DESTDIR}/var/db/etcupdate 62 etcupdate extract -B \ 63 -M "TARGET=${TARGET} TARGET_ARCH=${TARGET_ARCH}" \ 64 -s ${WORLDDIR} -d ${DESTDIR}/var/db/etcupdate 65 sh ${WORLDDIR}/release/scripts/mm-mtree.sh -m ${WORLDDIR} \ 66 -F "TARGET=${TARGET} TARGET_ARCH=${TARGET_ARCH}" \ 67 -D ${DESTDIR} 68 69 echo '# Custom /etc/fstab for FreeBSD VM images' \ 70 > ${DESTDIR}/etc/fstab 71 if [ "${VMFS}" != zfs ]; then 72 echo "/dev/${ROOTLABEL}/rootfs / ${VMFS} rw 1 1" \ 73 >> ${DESTDIR}/etc/fstab 74 fi 75 if [ -z "${NOSWAP}" ]; then 76 echo '/dev/gpt/swapfs none swap sw 0 0' \ 77 >> ${DESTDIR}/etc/fstab 78 fi 79 80 local hostname 81 hostname="$(echo $(uname -o) | tr '[:upper:]' '[:lower:]')" 82 echo "hostname=\"${hostname}\"" >> ${DESTDIR}/etc/rc.conf 83 if [ "${VMFS}" = zfs ]; then 84 echo "zfs_enable=\"YES\"" >> ${DESTDIR}/etc/rc.conf 85 echo "zpool_reguid=\"zroot\"" >> ${DESTDIR}/etc/rc.conf 86 echo "zpool_upgrade=\"zroot\"" >> ${DESTDIR}/etc/rc.conf 87 fi 88 89 if ! [ -z "${QEMUSTATIC}" ]; then 90 export EMULATOR=/qemu 91 cp ${QEMUSTATIC} ${DESTDIR}/${EMULATOR} 92 fi 93 94 mkdir -p ${DESTDIR}/dev 95 mount -t devfs devfs ${DESTDIR}/dev 96 chroot ${DESTDIR} ${EMULATOR} /usr/bin/newaliases 97 chroot ${DESTDIR} ${EMULATOR} /bin/sh /etc/rc.d/ldconfig forcestart 98 umount_loop ${DESTDIR}/dev 99 100 cp /etc/resolv.conf ${DESTDIR}/etc/resolv.conf 101 102 if [ "${VMFS}" = zfs ]; then 103 echo "kern.geom.label.disk_ident.enable=0" >> ${DESTDIR}/boot/loader.conf 104 echo "zfs_load=YES" >> ${DESTDIR}/boot/loader.conf 105 fi 106 107 return 0 108} 109 110vm_extra_install_base() { 111 # Prototype. When overridden, runs extra post-installworld commands 112 # as needed, based on the target virtual machine image or cloud 113 # provider image target. 114 115 return 0 116} 117 118vm_extra_enable_services() { 119 if [ ! -z "${VM_RC_LIST}" ]; then 120 for _rcvar in ${VM_RC_LIST}; do 121 echo ${_rcvar}_enable="YES" >> ${DESTDIR}/etc/rc.conf 122 done 123 fi 124 125 if [ -z "${VMCONFIG}" -o -c "${VMCONFIG}" ]; then 126 echo 'ifconfig_DEFAULT="DHCP inet6 accept_rtadv"' >> \ 127 ${DESTDIR}/etc/rc.conf 128 # Expand the filesystem to fill the disk. 129 echo 'growfs_enable="YES"' >> ${DESTDIR}/etc/rc.conf 130 touch ${DESTDIR}/firstboot 131 fi 132 133 return 0 134} 135 136vm_extra_install_packages() { 137 if [ -z "${VM_EXTRA_PACKAGES}" ]; then 138 return 0 139 fi 140 mkdir -p ${DESTDIR}/dev 141 mount -t devfs devfs ${DESTDIR}/dev 142 chroot ${DESTDIR} ${EMULATOR} env ASSUME_ALWAYS_YES=yes \ 143 /usr/sbin/pkg bootstrap -y 144 for p in ${VM_EXTRA_PACKAGES}; do 145 chroot ${DESTDIR} ${EMULATOR} env ASSUME_ALWAYS_YES=yes \ 146 /usr/sbin/pkg install -y ${p} 147 done 148 umount_loop ${DESTDIR}/dev 149 150 return 0 151} 152 153vm_extra_install_ports() { 154 # Prototype. When overridden, installs additional ports within the 155 # virtual machine environment. 156 157 return 0 158} 159 160vm_extra_pre_umount() { 161 # Prototype. When overridden, performs additional tasks within the 162 # virtual machine environment prior to unmounting the filesystem. 163 # Note: When overriding this function, removing resolv.conf in the 164 # disk image must be included. 165 166 if ! [ -z "${QEMUSTATIC}" ]; then 167 rm -f ${DESTDIR}/${EMULATOR} 168 fi 169 rm -f ${DESTDIR}/etc/resolv.conf 170 return 0 171} 172 173vm_extra_pkg_rmcache() { 174 if [ -e ${DESTDIR}/usr/local/sbin/pkg ]; then 175 chroot ${DESTDIR} ${EMULATOR} env ASSUME_ALWAYS_YES=yes \ 176 /usr/local/sbin/pkg clean -y -a 177 fi 178 179 return 0 180} 181 182buildfs() { 183 local md tmppool 184 185 case "${VMFS}" in 186 ufs) 187 makefs ${MAKEFSARGS} -o label=rootfs -o version=2 -o softupdates=1 \ 188 ${VMBASE} ${DESTDIR} 189 ;; 190 zfs) 191 makefs -t zfs ${MAKEFSARGS} \ 192 -o poolname=zroot -o bootfs=zroot/ROOT/default -o rootpath=/ \ 193 -o fs=zroot\;mountpoint=none \ 194 -o fs=zroot/ROOT\;mountpoint=none \ 195 -o fs=zroot/ROOT/default\;mountpoint=/ \ 196 -o fs=zroot/tmp\;mountpoint=/tmp\;exec=on\;setuid=off \ 197 -o fs=zroot/usr\;mountpoint=/usr\;canmount=off \ 198 -o fs=zroot/usr/home \ 199 -o fs=zroot/usr/ports\;setuid=off \ 200 -o fs=zroot/usr/src \ 201 -o fs=zroot/usr/obj \ 202 -o fs=zroot/var\;mountpoint=/var\;canmount=off \ 203 -o fs=zroot/var/audit\;setuid=off\;exec=off \ 204 -o fs=zroot/var/log\;setuid=off\;exec=off \ 205 -o fs=zroot/var/mail\;atime=on \ 206 -o fs=zroot/var/tmp\;setuid=off \ 207 ${VMBASE} ${DESTDIR} 208 ;; 209 *) 210 echo "Unexpected VMFS value '${VMFS}'" 211 exit 1 212 ;; 213 esac 214} 215 216umount_loop() { 217 DIR=$1 218 i=0 219 sync 220 while ! umount ${DIR}; do 221 i=$(( $i + 1 )) 222 if [ $i -ge 10 ]; then 223 # This should never happen. But, it has happened. 224 echo "Cannot umount(8) ${DIR}" 225 echo "Something has gone horribly wrong." 226 return 1 227 fi 228 sleep 1 229 done 230 231 return 0 232} 233 234vm_create_disk() { 235 local BOOTFILES BOOTPARTSOFFSET FSPARTTYPE X86GPTBOOTFILE 236 237 if [ -z "${NOSWAP}" ]; then 238 SWAPOPT="-p freebsd-swap/swapfs::${SWAPSIZE}" 239 fi 240 241 if [ -n "${VM_BOOTPARTSOFFSET}" ]; then 242 BOOTPARTSOFFSET=":${VM_BOOTPARTSOFFSET}" 243 fi 244 245 case "${VMFS}" in 246 ufs) 247 FSPARTTYPE=freebsd-ufs 248 X86GPTBOOTFILE=i386/gptboot/gptboot 249 ;; 250 zfs) 251 FSPARTTYPE=freebsd-zfs 252 X86GPTBOOTFILE=i386/gptzfsboot/gptzfsboot 253 ;; 254 *) 255 echo "Unexpected VMFS value '${VMFS}'" 256 return 1 257 ;; 258 esac 259 260 echo "Creating image... Please wait." 261 echo 262 263 BOOTFILES="$(env TARGET=${TARGET} TARGET_ARCH=${TARGET_ARCH} \ 264 WITH_UNIFIED_OBJDIR=yes \ 265 make -C ${WORLDDIR}/stand -V .OBJDIR)" 266 BOOTFILES="$(realpath ${BOOTFILES})" 267 MAKEFSARGS="-s ${VMSIZE}" 268 269 case "${TARGET}:${TARGET_ARCH}" in 270 amd64:amd64 | i386:i386) 271 ESP=yes 272 BOOTPARTS="-b ${BOOTFILES}/i386/pmbr/pmbr \ 273 -p freebsd-boot/bootfs:=${BOOTFILES}/${X86GPTBOOTFILE}${BOOTPARTSOFFSET}" 274 ROOTFSPART="-p ${FSPARTTYPE}/rootfs:=${VMBASE}" 275 MAKEFSARGS="$MAKEFSARGS -B little" 276 ;; 277 arm64:aarch64 | riscv:riscv64*) 278 ESP=yes 279 BOOTPARTS= 280 ROOTFSPART="-p ${FSPARTTYPE}/rootfs:=${VMBASE}" 281 MAKEFSARGS="$MAKEFSARGS -B little" 282 ;; 283 powerpc:powerpc*) 284 ESP=no 285 BOOTPARTS="-p prepboot:=${BOOTFILES}/powerpc/boot1.chrp/boot1.elf -a 1" 286 ROOTFSPART="-p freebsd:=${VMBASE}" 287 if [ ${TARGET_ARCH} = powerpc64le ]; then 288 MAKEFSARGS="$MAKEFSARGS -B little" 289 else 290 MAKEFSARGS="$MAKEFSARGS -B big" 291 fi 292 ;; 293 *) 294 echo "vmimage.subr: unsupported target '${TARGET}:${TARGET_ARCH}'" >&2 295 exit 1 296 ;; 297 esac 298 299 if [ ${ESP} = "yes" ]; then 300 # Create an ESP 301 espfilename=$(mktemp /tmp/efiboot.XXXXXX) 302 make_esp_file ${espfilename} ${fat32min} ${BOOTFILES}/efi/loader_lua/loader_lua.efi 303 BOOTPARTS="${BOOTPARTS} -p efi/efiesp:=${espfilename}" 304 305 # Add this to fstab 306 mkdir -p ${DESTDIR}/boot/efi 307 echo "/dev/${ROOTLABEL}/efiesp /boot/efi msdosfs rw 2 2" \ 308 >> ${DESTDIR}/etc/fstab 309 fi 310 311 echo "Building filesystem... Please wait." 312 buildfs 313 314 echo "Building final disk image... Please wait." 315 mkimg -s ${PARTSCHEME} -f ${VMFORMAT} \ 316 ${BOOTPARTS} \ 317 ${SWAPOPT} \ 318 ${ROOTFSPART} \ 319 -o ${VMIMAGE} 320 321 if [ ${ESP} = "yes" ]; then 322 rm ${espfilename} 323 fi 324 325 return 0 326} 327 328vm_extra_create_disk() { 329 330 return 0 331} 332 333