diff options
Diffstat (limited to 'sys/boot/powerpc/boot1.chrp/generate-hfs.sh')
-rwxr-xr-x | sys/boot/powerpc/boot1.chrp/generate-hfs.sh | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/sys/boot/powerpc/boot1.chrp/generate-hfs.sh b/sys/boot/powerpc/boot1.chrp/generate-hfs.sh new file mode 100755 index 0000000..ab5694d --- /dev/null +++ b/sys/boot/powerpc/boot1.chrp/generate-hfs.sh @@ -0,0 +1,64 @@ +#!/bin/sh + +# This script generates the dummy HFS filesystem used for the PowerPC boot +# blocks. It uses hfsutils (emulators/hfsutils) to generate a template +# filesystem with the relevant interesting files. These are then found by +# grep, and the offsets written to a Makefile snippet. +# +# Because of licensing concerns, and because it is overkill, we do not +# distribute hfsutils as a build tool. If you need to regenerate the HFS +# template (e.g. because the boot block or the CHRP script have grown), +# you must install it from ports. + +# $FreeBSD$ + +HFS_SIZE=1600 #Size in 512-byte blocks of the produced image + +CHRPBOOT_SIZE=2k +BOOT1_SIZE=30k + +# Generate 800K HFS image +OUTPUT_FILE=hfs.tmpl + +dd if=/dev/zero of=$OUTPUT_FILE bs=512 count=$HFS_SIZE +hformat -l "FreeBSD Bootstrap" $OUTPUT_FILE +hmount $OUTPUT_FILE + +# Create and bless a directory for the boot loader +hmkdir ppc +hattrib -b ppc +hcd ppc + +# Make two dummy files for the the CHRP boot script and boot1 +echo 'Bootinfo START' | dd of=bootinfo.txt.tmp cbs=$CHRPBOOT_SIZE count=1 conv=block +echo 'Boot1 START' | dd of=boot1.elf.tmp cbs=$BOOT1_SIZE count=1 conv=block + +hcopy boot1.elf.tmp :boot1.elf +hcopy bootinfo.txt.tmp :bootinfo.txt +hattrib -c chrp -t tbxi bootinfo.txt +humount + +rm bootinfo.txt.tmp +rm boot1.elf.tmp + +# Locate the offsets of the two fake files +BOOTINFO_OFFSET=$(hd $OUTPUT_FILE | grep 'Bootinfo START' | cut -f 1 -d ' ') +BOOT1_OFFSET=$(hd $OUTPUT_FILE | grep 'Boot1 START' | cut -f 1 -d ' ') + +# Convert to numbers of blocks +BOOTINFO_OFFSET=$(echo 0x$BOOTINFO_OFFSET | awk '{printf("%x\n",$1/512);}') +BOOT1_OFFSET=$(echo 0x$BOOT1_OFFSET | awk '{printf("%x\n",$1/512);}') + +echo '# This file autogenerated by generate-hfs.sh - DO NOT EDIT' > Makefile.hfs +echo '# $FreeBSD$' >> Makefile.hfs +echo "BOOTINFO_OFFSET=0x$BOOTINFO_OFFSET" >> Makefile.hfs +echo "BOOT1_OFFSET=0x$BOOT1_OFFSET" >> Makefile.hfs + +bzip2 $OUTPUT_FILE +echo 'HFS template boot filesystem created by generate-hfs.sh' > $OUTPUT_FILE.bz2.uu +echo 'DO NOT EDIT' >> $OUTPUT_FILE.bz2.uu +echo '$FreeBSD$' >> $OUTPUT_FILE.bz2.uu + +uuencode $OUTPUT_FILE.bz2 $OUTPUT_FILE.bz2 >> $OUTPUT_FILE.bz2.uu +rm $OUTPUT_FILE.bz2 + |