Re: [Libguestfs] question about backing file path of a qcow2 image
On Thu, Sep 12, 2013 at 10:46:12AM +0800, bigclouds wrote:
thanks . now i know qcow2 only store relative path.
look at my error message, 6a3256bb-b247-4fb5-9f75-8ffa7151eeda i a symlink to a LV. it
is the backing_file of several images(LV)..
i have no idea of the reason of the error.
# virt-win-reg 6a3256bb-b247-4fb5-9f75-8ffa7151eeda 'HKLM\SOFTWARE\Microsoft\Windows
NT\CurrentVersion' 'Productname'
hivex: /tmp/libguestfsIdLWuF/0-software: trailing garbage at end of file (at 0x86e000,
after 2088 pages)
hivex_open: Operation not supported at /usr/bin/virt-win-reg line 259.
This error indicates that hivex cannot parse the SOFTWARE hive in this
guest. If you truly think this hive is not corrupt but that it's a
parsing bug in hivex, then you can download the hive from this 'guest'
and attach it to a bug against hivex.
You can set HIVEX_DEBUG=1 to get more debugging information from
hivex, which will tell you the actual problem that hivex is
encountering.
You mention that '6a3256bb-b247-4fb5-9f75-8ffa7151eeda' is a backing
file for other guests. It's not always valid to directly open backing
files (it depends on how it was created and updated). If the backing
file isn't a full guest image, then it is expected that the operation
above would not work.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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