systemvm: Fixes apache#2561 patching on XenServer

This fixes incorrect xenstore-read binary path, this failed systemvm
to be patched/started correctly on xenserver. The other fix is to keep
the xen-domU flag that may be returned by virt-what. This effect
won't change the cmdline being consumed as the mgmt server side (java)
code sets the boot args in both xenstore and as pv args. The systemvm's
/boot is ext2 that can be booted by PyGrub on both old and recent
XenServer versions.

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>

Author: rohityadavcloud

systemvm/debian/opt/cloud/bin/setup/cloud-early-config

@@ -71,16 +71,16 @@ config_guest() {
 
 get_boot_params() {
   case $HYPERVISOR in
-     xen-pv)
+     xen-pv|xen-domU)
           cat /proc/cmdline > $CMDLINE
           sed -i "s/%/ /g" $CMDLINE
           ;;
      xen-hvm)
-          if [ ! -f /usr/sbin/xenstore-read ]; then
+          if [ ! -f /usr/bin/xenstore-read ]; then
             log_it "ERROR: xentools not installed, cannot found xenstore-read" && exit 5
           fi
-          /usr/sbin/xenstore-read vm-data/cloudstack/init > /var/cache/cloud/cmdline
-          sed -i "s/%/ /g" /var/cache/cloud/cmdline
+          /usr/bin/xenstore-read vm-data/cloudstack/init > $CMDLINE
+          sed -i "s/%/ /g" $CMDLINE
           ;;
      kvm)
           VPORT=$(find /dev/virtio-ports -type l -name '*.vport' 2>/dev/null|head -1)

tools/appliance/systemvmtemplate/scripts/install_systemvm_packages.sh

@@ -86,9 +86,9 @@ function install_packages() {
   fi
 
   # Install xenserver guest utilities as debian repos don't have it
-  wget https://mirrors.kernel.org/ubuntu/pool/universe/x/xe-guest-utilities/xe-guest-utilities_7.4.0-0ubuntu1_amd64.deb
-  dpkg -i xe-guest-utilities_7.4.0-0ubuntu1_amd64.deb
-  rm -f xe-guest-utilities_7.4.0-0ubuntu1_amd64.deb
+  wget https://mirrors.kernel.org/ubuntu/pool/main/x/xe-guest-utilities/xe-guest-utilities_7.10.0-0ubuntu1_amd64.deb
+  dpkg -i xe-guest-utilities_7.10.0-0ubuntu1_amd64.deb
+  rm -f xe-guest-utilities_7.10.0-0ubuntu1_amd64.deb
 }
 
 return 2>/dev/null || install_packages