Author: imp
Date: Fri Dec 15 06:34:11 2017
New Revision: 326873
URL: https://svnweb.freebsd.org/changeset/base/326873
Log:
Script that knows how to put boot blocks onto a device. Eventually,
this will be installed into /usr/sbin, but for now it's just used for
the boot loader regression script. It's still a bit green, and likely
will get edge cases wrong still. It's also x86 centric at the moment,
but will be enhanced shortly for u-boot, CHRP PowerPC and other
methods.
Sponsored by: Netflix
Added:
head/tools/boot/install-boot.sh (contents, props changed)
Added: head/tools/boot/install-boot.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/tools/boot/install-boot.sh Fri Dec 15 06:34:11 2017
(r326873)
@@ -0,0 +1,128 @@
+#!/bin/sh
+
+# $FreeBSD$
+
+#
+# Installs/updates the necessary boot blocks for the desired boot environment
+#
+# Lightly tested.. Intended to be installed, but until it matures, it will just
+# be a boot tool for regression testing.
+
+# insert code here to guess what you have -- yikes!
+
+die() {
+ echo $*
+ exit 1
+}
+
+find-part() {
+ dev=$1
+ part=$2
+
+ gpart show $dev | tail +2 | awk '$4 == "'$part'" { print $3; }'
+}
+
+boot_nogeli_gpt_zfs_legacy() {
+ dev=$1
+ dst=$2
+
+ idx=$(find-part $dev "freebsd-boot")
+ if [ -z "$idx" ] ; then
+ die "No freebsd-boot partition found"
+ fi
+ gpart bootcode -b ${gpt0} -p ${gpt2} -i $idx $dev
+ exit 0
+}
+
+boot_nogeli_gpt_ufs_legacy() {
+ dev=$1
+ dst=$2
+
+ idx=$(find-part $dev "freebsd-boot")
+ if [ -z "$idx" ] ; then
+ die "No freebsd-boot partition found"
+ fi
+ gpart bootcode -b ${gpt0} -p ${gpt2} -i $idx $dev
+ exit 0
+}
+
+boot_nogeli_mbr_zfs_legacy() {
+ dev=$1
+ dst=$2
+
+ # search to find the BSD slice
+ s=$(findpart $dev "freebsd-zfs")
+ if [ -z "$s" ] ; then
+ die "No freebsd-zfs slice found"
+ fi
+ # search to find the freebsd-zfs partition within the slice
+ # Or just assume it is 'a' because it has to be since it fails otherwise
+ dd if=${dst}/boot/zfsboot of=/tmp/zfsboot1 count=1
+ gpart bootcode -b /tmp/zfsboo1 ${dev}s${s} # Put boot1 into the start of
part
+ sysctl kern.geom.debugflags=0x10
+ dd if=${dst}/boot/zfsboot iseek=1 seek=1024 # Put boot2 into ZFS
boot slot
+ sysctl kern.geom.debugflags=0x0
+
+ exit 0
+}
+
+boot_nogeli_mbr_ufs_legacy() {
+ dev=$1
+ dst=$2
+
+ gpart bootcode -b ${mbr0} ${dev}
+ s=$(findpart $dev "freebsd-ufs")
+ if [ -z "$s" ] ; then
+ die "No freebsd-zfs slice found"
+ fi
+ gpart bootcode -p ${mbr2} ${dev}s${s}
+ exit 0
+}
+
+DESTDIR=/
+
+# Note: we really don't support geli boot in this script yet.
+geli=nogeli
+
+while getopts "b:d:f:g:o:s:" opt; do
+ case "$opt" in
+ b)
+ bios=${OPTARG}
+ ;;
+ d)
+ DESTDIR=${OPTARG}
+ ;;
+ f)
+ fs=${OPTARG}
+ ;;
+ g)
+ case ${OPTARG} in
+ [Yy][Ee][Ss]|geli) geli=geli ;;
+ *) geli=nogeli ;;
+ esac
+ ;;
+ o)
+ opts=${OPTARG}
+ ;;
+ s)
+ scheme=${OPTARG}
+ ;;
+ esac
+done
+
+shift $((OPTIND-1))
+dev=$1
+
+# For gpt, we need to install pmbr as the primary boot loader
+# it knows about
+gpt0=${DESTDIR}/boot/pmbr
+gpt2=${DESTDIR}/boot/gptboot
+gptzfs2=${DESTDIR}/boot/gptzfsboot
+
+# For MBR, we have lots of choices, but select boot0
+mbr0=${DESTDIR}/boot/boot0
+mbr2=${DESTDIR}/boot/boot
+
+# sanity check here
+
+eval boot_${geli}_${scheme}_${fs}_${bios} $dev $DESTDIR $opts || echo
"Unsupported boot env: ${geli}-${scheme}-${fs}-${bios}"
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