In invirt-autoinstaller:

[invirt/packages/invirt-autoinstaller.git] / common / usr / lib / xen-tools / debian.d / 93-setup-grub

diff --git a/common/usr/lib/xen-tools/debian.d/93-setup-grub b/common/usr/lib/xen-tools/debian.d/93-setup-grub
index c6b6cb2..d3ba6fd 100755 (executable)
--- a/common/usr/lib/xen-tools/debian.d/93-setup-grub
+++ b/common/usr/lib/xen-tools/debian.d/93-setup-grub
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 #  This script sets up the ParaVM to use pygrub
 #
@@ -68,9 +68,31 @@ if [ "$(chroot ${prefix} lsb_release -is)" = "Ubuntu" ] && \
 fi
 
 #
-# Regenerate automagic kernels list
+# Since pv_ops kernels force block device names to xvda, xvdb, etc,
+# the default root value of root=/dev/hda won't actually help us.
 #
-chroot ${prefix} /usr/sbin/update-grub -y
+# To work around that, find a UUID for the swap and root partitions
+# and use that in the grub config (and also in /etc/fstab)
+#
+ROOT_DEV="$(perl -e 'print $ENV{"image-dev"}')"
+SWAP_DEV="$(perl -e 'print $ENV{"swap-dev"}')"
+ROOT_UUID="$(vol_id --uuid "$ROOT_DEV")"
+SWAP_UUID="$(vol_id --uuid "$SWAP_DEV")"
+for i in $(seq 1 "$NUMPARTITIONS"); do
+    var="PARTITION${i}"
+    case "$(echo ${!var} | cut -f1 -d:)" in
+        disk) ROOT_GUEST="$(echo ${!var} | cut -f8 -d:)";;
+        swap) SWAP_GUEST="$(echo ${!var} | cut -f8 -d:)";;
+    esac
+done
+sed -i -re "s%^(# *kopt=.*root=)[^ ]*%\1UUID=$ROOT_UUID%" ${prefix}/boot/grub/menu.lst
+sed -i -e "s%${ROOT_GUEST}%UUID=${ROOT_UUID}%" ${prefix}/etc/fstab
+sed -i -e "s%${SWAP_GUEST}%UUID=${SWAP_UUID}%" ${prefix}/etc/fstab
+
+#
+# Regenerate automagic kernels list, saving our changes
+#
+chroot ${prefix} env UCF_FORCE_CONFFOLD=1 /usr/sbin/update-grub -y
 
 #
 # Log our finish