<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <STYLE type=text/css> </STYLE> <META content="text/html; charset=utf-8" http-equiv=Content-Type> <STYLE>BLOCKQUOTE{margin-Top: 0px; margin-Bottom: 0px; margin-Left: 2em}; OL, UL{margin-Top: 0px; margin-Bottom: 0px}; p{margin-Top:0em; margin-Bottom:0px; padding:0px;}; body{FONT-SIZE:12pt; FONT-FAMILY:宋体,serif;}; </STYLE> <META name=GENERATOR content="MSHTML 8.00.7600.16385"><BASE target=_blank></HEAD> <BODY style="LINE-HEIGHT: 1.3; BORDER-RIGHT-WIDTH: 0px; MARGIN: 12px; BORDER-TOP-WIDTH: 0px; BORDER-BOTTOM-WIDTH: 0px; BORDER-LEFT-WIDTH: 0px" marginheight="0" marginwidth="0"><STATIONERY> <DIV> <DIV><FONT color=#000000 size=3 face=宋体>Dear all.</FONT></DIV> <DIV>I use libvirt to attach a volume to xen's guest VM,but l got the following message:</DIV> <DIV> </DIV> <DIV>Attached device: /dev/sdb<BR>[Mon Jul 4 09:18:58 2011][006640][EUCAERROR ] libvirt: Requested operation is not valid: Xm driver only supports modifying persistent config (code=55)<BR>[Mon Jul 4 09:18:58 2011][006640][EUCAERROR ] AttachVolume() failed (err=-1) XML=<disk type='block'><driver name='phy'/><source dev='/dev/sdb'/><target dev='sdae'/></d<BR>isk><BR>[Mon Jul 4 09:18:58 2011][006640][EUCAERROR ] ERROR: doAttachVolume() failed error=1<BR>[Mon Jul 4 09:19:02 2011][006640][EUCADEBUG ] doDescribeResource() invoked<BR>[Mon Jul 4 09:19:02 2011][006640][EUCADEBUG ] doDescribeInstances() invoked</DIV> <DIV> </DIV> <DIV><FONT color=#000000 size=3 face=宋体> <DIV>any help will be greatly appreciated.</DIV> <DIV>Thank you in advance...</DIV> <DIV> </DIV></FONT></DIV> <DIV align=left><FONT color=#c0c0c0 size=2 face=Verdana>2011-07-05</FONT></DIV><FONT size=2 face=Verdana> <HR style="WIDTH: 122px; HEIGHT: 2px" id=SignNameHR align=left SIZE=2> <DIV><FONT color=#c0c0c0 size=2 face=Verdana><SPAN id=_FlashSignName>zhuxuegang</SPAN></FONT></DIV></FONT></DIV></STATIONERY></BODY></HTML>