- build appliance as initramfs image with the help of mkinitrd

OBS-URL: https://build.opensuse.org/package/show/Virtualization/libguestfs?expand=0&rev=27

libguestfs.changes

@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Aug 29 19:40:04 CEST 2012 - ohering@suse.de
+
+- build appliance as initramfs image with the help of mkinitrd
+
 -------------------------------------------------------------------
 Wed Aug 29 17:26:45 CEST 2012 - ohering@suse.de
 

libguestfs.mkinitrd.boot.sh

@@ -0,0 +1,77 @@
+#!/bin/bash
+#%stage: block
+#%modules: dm-mod virtio_blk virtio_console virtio_net virtio_pci virtio_scsi
+#%programs: guestfsd lvm mdadm lsmod ip date cat
+#
+
+# from libguestfs-1.19.34/appliance/init:
+
+# Scan for MDs.
+mdadm -As --auto=yes --run
+
+# Scan for LVM.
+modprobe dm_mod ||:
+
+lvm vgscan --ignorelockingfailure
+lvm vgchange -ay --ignorelockingfailure
+
+# Improve virtio-blk performance (RHBZ#509383).
+for f in /sys/block/vd*/queue/rotational; do echo 1 > $f; done
+
+# These are useful when debugging.
+if grep -sq guestfs_verbose=1 /proc/cmdline; then
+    ls -lR /dev
+    cat /proc/mounts
+    lvm pvs
+    lvm vgs
+    lvm lvs
+    ip a
+    ip r
+    lsmod
+    #hwclock -r
+    date
+    #ping -n -v -c 5 10.0.2.2
+    #ping -n -v -c 5 10.0.2.4
+
+    echo -n "uptime: "; cat /proc/uptime
+fi
+
+if ! grep -sq guestfs_rescue=1 /proc/cmdline; then
+  # Run the daemon under valgrind if ./configure --enable-valgrind-daemon
+  vg_channel=/dev/virtio-ports/org.libguestfs.valgrind
+  if [ -w $vg_channel ]; then
+    if [ -r /etc/guestfsd.suppressions ]; then
+      suppressions="--suppressions=/etc/guestfsd.suppressions"
+    fi
+    exec 3>$vg_channel
+    vg="valgrind --leak-check=full --log-fd=3 --error-exitcode=119 --max-stackframe=8388608 --child-silent-after-fork=yes $suppressions"
+    echo "enabling valgrind: $vg"
+  fi
+
+  # The host will kill qemu abruptly if guestfsd shuts down normally
+  $vg guestfsd
+
+  # Otherwise we try to clean up gracefully. For example, this ensures that a
+  # core dump generated by the guest daemon will be written to disk.
+else
+  # Use appliance in rescue mode, also used by the virt-rescue command.
+  eval $(grep -Eo 'TERM=[^[:space:]]+' /proc/cmdline)
+  PS1='><rescue> '
+  export TERM PS1
+  echo
+  echo "------------------------------------------------------------"
+  echo
+  echo "Welcome to virt-rescue, the libguestfs rescue shell."
+  echo
+  echo "Note: The contents of / are the rescue appliance."
+  echo "You have to mount the guest's partitions under /sysroot"
+  echo "before you can examine them."
+  echo
+  bash -i
+  echo
+  echo "virt-rescue: Syncing the disk now before exiting ..."
+  echo
+fi
+
+echo s > /proc/sysrq-trigger
+echo o > /proc/sysrq-trigger

libguestfs.mkinitrd.setup.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+#%stage: block
+#

libguestfs.spec

@@ -35,6 +35,9 @@
 Name:           libguestfs
 ExclusiveArch:  %ix86 x86_64
 Requires: kvm >= 1.1
+%if %{?sles_version}0 > 0
+BuildRequires:  sles-release
+%endif
 %if %suse_version >= 1140
 BuildRequires:  augeas-devel
 %endif
@@ -47,12 +50,16 @@ BuildRequires:  gcc-c++
 BuildRequires:  genisoimage
 BuildRequires:  gperf
 BuildRequires:  hivex-devel
+BuildRequires:  kernel-default
 BuildRequires:  kvm >= 1.1
+BuildRequires:  lvm2
 %if %suse_version >= 1220
 BuildRequires:  libconfig-devel
 %endif
 BuildRequires:  libtool
 BuildRequires:  libvirt-devel
+BuildRequires:  mdadm
+BuildRequires:  mkinitrd
 BuildRequires:  ncurses-devel
 BuildRequires:  pcre-devel
 BuildRequires:  pkg-config
@@ -131,6 +138,8 @@ Patch100:       libguestfs.perl.install_vendor.patch
 Patch101:       libguestfs.perl.no-rpath.patch
 Source0:        %{name}-%{version}.tar.gz
 Source1:        guestfs.tar.xz
+Source10:       libguestfs.mkinitrd.boot.sh
+Source11:       libguestfs.mkinitrd.setup.sh
 Recommends:     %{name}-data
 
 %description
@@ -308,10 +317,39 @@ make %{?jobs:-j%jobs}
 %makeinstall
 find $RPM_BUILD_ROOT \( -name "*.pod" -o -name ".packlist" \) -print0 | xargs -0 --no-run-if-empty rm -fv
 rm -f $RPM_BUILD_ROOT/%{_libdir}/*.{l,}a
-xz -cd %{S:1} | tar -C $RPM_BUILD_ROOT/%{_libdir} -xvf -
+#xz -cd %{S:1} | tar -C $RPM_BUILD_ROOT/%{_libdir} -xvf -
 touch %{name}.lang
 %find_lang %{name}
 #
+rm -rf mkinitrd
+cp -av /lib/mkinitrd .
+for bad in \
+	setup-dm.sh \
+	setup-storage.sh
+do
+	rm mkinitrd/scripts/${bad}
+done
+cp -avL %{S:10} mkinitrd/scripts/boot-guestfs.sh
+cp -avL %{S:11} mkinitrd/scripts/setup-guestfs.sh
+chmod 755 mkinitrd/scripts/*guestfs.sh
+/sbin/mkinitrd_setup  \
+	-s $PWD/mkinitrd/scripts \
+	-i $PWD/mkinitrd
+mkdir mkinitrd/boot_tmp
+kver=`/sbin/get_kernel_version /boot/vmlinuz`
+cp -avL /boot/vmlinuz /boot/System.map-${kver} mkinitrd/boot_tmp
+env PATH=${RPM_BUILD_ROOT}/usr/bin:${RPM_BUILD_ROOT}/usr/sbin:${PATH} \
+/sbin/mkinitrd \
+	-l $PWD/mkinitrd \
+	-k vmlinuz \
+	-i initrd \
+	-b $PWD/mkinitrd/boot_tmp \
+	-m 'dm-mod loop' \
+	-B
+#
+mkdir -vp $RPM_BUILD_ROOT%{_libdir}/guestfs
+cp -avL mkinitrd/boot_tmp/initrd  $RPM_BUILD_ROOT%{_libdir}/guestfs/initramfs.`arch`.img
+cp -avL mkinitrd/boot_tmp/vmlinuz $RPM_BUILD_ROOT%{_libdir}/guestfs/vmlinuz.`arch`
 
 %clean
 rm -rf $RPM_BUILD_ROOT