From d837ac398492cc2f6683cb8e2cbb80475ba232d5 Mon Sep 17 00:00:00 2001

From: Harald Hoyer <harald@redhat.com>

Date: Sat, 9 Mar 2013 15:09:55 +0100

Subject: [PATCH] add /lib/kernel/install.d/51-dracut-rescue.install

Upon installation of a kernel, check if a rescue image is already

available and if not, create a non-hostonly generic initramfs image with

the rescue module added.

---

 51-dracut-rescue.install | 73 ++++++++++++++++++++++++++++++++++++++++++++++++

 Makefile                 |  1 +

 dracut.spec              |  1 +

 3 files changed, 75 insertions(+)

 create mode 100755 51-dracut-rescue.install

diff --git a/51-dracut-rescue.install b/51-dracut-rescue.install

new file mode 100755

index 0000000..844e578

--- /dev/null

+++ b/51-dracut-rescue.install

@@ -0,0 +1,73 @@

+#!/bin/sh

+# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-

+# ex: ts=8 sw=4 sts=4 et filetype=sh

+

+export LANG=C

+

+COMMAND="$1"

+KERNEL_VERSION="$2"

+BOOT_DIR_ABS="$3"

+BOOT_DIR="${3#/boot}"

+

+[[ -f /etc/os-release ]] && . /etc/os-release

+[[ -f /etc/machine-id ]] && read MACHINE_ID < /etc/machine-id

+if [[ -f /etc/kernel/cmdline ]]; then

+    readarray -t BOOT_OPTIONS < /etc/kernel/cmdline

+fi

+if ! [[ "${BOOT_OPTIONS[@]}" ]]; then

+    readarray -t BOOT_OPTIONS < /proc/cmdline

+fi

+if ! [[ $BOOT_OPTIONS ]]; then

+    exit 1

+fi

+

+LOADER_ENTRY="/boot/loader/entries/${MACHINE_ID}-00-${KERNEL_VERSION}-rescue.conf"

+

+ret=0

+

+case "$COMMAND" in

+    add)

+        for i in "/boot/loader/entries/${MACHINE_ID}-00-"*"-rescue.conf"; do

+            [[ -f $i ]] && exit 0

+        done

+

+	dracut --no-hostonly  -a "rescue" "$3"/initrd-rescue "$2"

+        ((ret+=$?))

+

+        {

+            echo "title      $PRETTY_NAME - Rescue Image"

+            echo "version    $KERNEL_VERSION"

+            echo "machine-id $MACHINE_ID"

+            echo "options    ${BOOT_OPTIONS[@]} rd.auto=1"

+            echo "linux      $BOOT_DIR/linux"

+            echo "initrd     $BOOT_DIR/initrd-rescue"

+        } > $LOADER_ENTRY

+        ((ret+=$?))

+

+        if (( $ret == 0 )); then

+            command -v yumdb &>/dev/null && \

+                yumdb set installonly keep kernel-$KERNEL_VERSION >/dev/null

+        fi

+

+        ;;

+

+    remove)

+        [[ -f $LOADER_ENTRY ]] || exit 0

+

+        rm -f "$LOADER_ENTRY" "$3"/initrd-rescue

+

+        if command -v yumdb &>/dev/null; then

+            if [[ $(yumdb get installonly kernel-$KERNEL_VERSION 2>/dev/null) == *installonly\ \=\ keep* ]]; then

+                yumdb del installonly kernel-$KERNEL_VERSION >/dev/null

+            fi

+        fi

+        ;;

+

+    *)

+        usage

+        ret=1;;

+esac

+

+((ret+=$?))

+

+exit $ret

diff --git a/Makefile b/Makefile

index 7546ac6..a11689c 100644

--- a/Makefile

+++ b/Makefile

@@ -118,6 +118,7 @@ endif

 	fi

 	mkdir -p $(DESTDIR)${prefix}/lib/kernel/install.d

 	install -m 0755 50-dracut.install $(DESTDIR)${prefix}/lib/kernel/install.d/50-dracut.install

+	install -m 0755 51-dracut-rescue.install $(DESTDIR)${prefix}/lib/kernel/install.d/51-dracut-rescue.install

 dracut-version.sh:

 	@echo "DRACUT_VERSION=$(VERSION)-$(GITVERSION)" > dracut-version.sh

diff --git a/dracut.spec b/dracut.spec

index 707e66a..6d30e57 100644

--- a/dracut.spec

+++ b/dracut.spec

@@ -338,6 +338,7 @@ rm -rf $RPM_BUILD_ROOT

 %endif

 %if 0%{?fedora} || 0%{?rhel} > 6

 %{_prefix}/lib/kernel/install.d/50-dracut.install

+%{_prefix}/lib/kernel/install.d/51-dracut-rescue.install

 %endif

 %files network