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[Xen-devel] Windows HVM guest disk is not write-protected with 'r' option


  • To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Stephen Quintero" <stephen@xxxxxxxxx>
  • Date: Tue, 29 Jul 2008 16:42:44 -0700
  • Delivery-date: Tue, 29 Jul 2008 16:43:06 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Acjx1Mx9mGhaiqfATsC/cpcIoW4B7A==
  • Thread-topic: Windows HVM guest disk is not write-protected with 'r' option

Hello,

Using a Windows 2003 guest with second disk device in the xm config file:

disk=[
     'phy:/dev/md4,ioemu:hda,w',
     'phy:/dev/md5,ioemu:hdb,r'
     ]

the second disk is not actually write protected under Windows.  You can, for 
example, mount the NTFS volume and create/delete files.

It seems mdadm/nbd should not allow this.

I am using Xen 3.2.1 and would appreciate any comment on this issue.

Thank you,

Stephen Quintero


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