Author: benno Date: Tue Apr 17 22:33:41 2018 New Revision: 332661 URL: https://svnweb.freebsd.org/changeset/base/332661
Log: Generate hybrid ISO images for amd64. This keeps the existing El Torito entries for BIOS and UEFI boot code and adds a GPT in the ISO image's System Area containing boot code for BIOS that will load /boot/loader from the ISO filesystem and execute it. We then use etdump to find the EFI System Partition image in the El Torito catalog and add an entry to the GPT that allows EFI to find it. Reviewed by: gjb, imp Sponsored by: iXsystems, Inc. Differential Revision: https://reviews.freebsd.org/D15051 Modified: head/release/amd64/mkisoimages.sh Modified: head/release/amd64/mkisoimages.sh ============================================================================== --- head/release/amd64/mkisoimages.sh Tue Apr 17 22:30:00 2018 (r332660) +++ head/release/amd64/mkisoimages.sh Tue Apr 17 22:33:41 2018 (r332661) @@ -38,7 +38,7 @@ if [ "$1" = "-b" ]; then umount efi rmdir efi mdconfig -d -u $device - bootable="-o bootimage=i386;efiboot.img -o no-emul-boot -o platformid=efi $bootable" + bootable="$bootable -o bootimage=i386;efiboot.img -o no-emul-boot -o platformid=efi" shift else @@ -58,3 +58,29 @@ echo "/dev/iso9660/$LABEL / cd9660 ro 0 0" > "$1/etc/f makefs -t cd9660 $bootable -o rockridge -o label="$LABEL" -o publisher="$publisher" "$NAME" "$@" rm -f "$1/etc/fstab" rm -f efiboot.img + +if [ "$bootable" != "" ]; then + # Look for the EFI System Partition image we dropped in the ISO image. + for entry in `etdump --format shell $NAME`; do + eval $entry + if [ "$et_platform" = "efi" ]; then + espstart=`expr $et_lba \* 2048` + espsize=`expr $et_sectors \* 512` + espparam="-p efi::$espsize:$espstart" + break + fi + done + + # Create a GPT image containing the partitions we need for hybrid boot. + imgsize=`stat -f %z $NAME` + mkimg -s gpt \ + --capacity $imgsize \ + -b $4/boot/pmbr \ + $espparam \ + -p freebsd-boot:=$4/boot/isoboot \ + -o hybrid.img + + # Drop the PMBR, GPT, and boot code into the System Area of the ISO. + dd if=hybrid.img of=$NAME bs=32k count=1 conv=notrunc + rm -f hybrid.img +fi _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
