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-rw-r--r--nova/virt/libvirt/driver.py10
1 files changed, 8 insertions, 2 deletions
diff --git a/nova/virt/libvirt/driver.py b/nova/virt/libvirt/driver.py
index dc1ab3936..97ee4bb70 100644
--- a/nova/virt/libvirt/driver.py
+++ b/nova/virt/libvirt/driver.py
@@ -1805,6 +1805,12 @@ class LibvirtDriver(driver.ComputeDriver):
guest.os_kernel = os.path.join(CONF.instances_path,
instance['name'],
"kernel.rescue")
+ if CONF.libvirt_type == "xen":
+ guest.os_cmdline = "ro"
+ else:
+ guest.os_cmdline = ("root=%s console=ttyS0" %
+ (root_device_name or "/dev/vda",))
+
if rescue.get('ramdisk_id'):
guest.os_initrd = os.path.join(CONF.instances_path,
instance['name'],
@@ -1816,8 +1822,8 @@ class LibvirtDriver(driver.ComputeDriver):
if CONF.libvirt_type == "xen":
guest.os_cmdline = "ro"
else:
- guest.os_cmdline = "root=%s console=ttyS0" % (
- root_device_name or "/dev/vda",)
+ guest.os_cmdline = ("root=%s console=ttyS0" %
+ (root_device_name or "/dev/vda",))
if instance['ramdisk_id']:
guest.os_initrd = os.path.join(CONF.instances_path,
instance['name'],