2:46 a.m.
On Thu, Feb 09, 2012 at 03:17:22PM -0800, Irfan Ahmed wrote:
I am using Xen and want to access the page file contents of windows
XP SP2 virtual machine from dom0. Is it possible to read the page
file of live Windows XP virtual machine using libguestfs. I have a C
program and want to extend its functionality using
libguestfs. Please help me how this can be done.
Yes; this can be done by reading the file through libguestfs, which is
what 'virt-cat' (a C program) does.
I would suggest you start with these two examples:
http://libguestfs.org/guestfs-examples.3.html
https://github.com/libguestfs/libguestfs/blob/6ca8a2db6d6f1028a35ece616af...
If you need to locate the page file (ie. it's not in a default
location) then you will have to read that from the registry, which
libguestfs can also do.
If the guest is live you won't simply be able to keep a handle open
and re-read the file. You might need to map the file to disk blocks
and read them directly. (This is a bit more experimental)
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-top is 'top' for virtual machines. Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
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11:51 a.m.
New subject: Error while compiling febootstrap (a prereq for libguestfs)
I want to install libguestfs in Centos 5 Kernel version 2.6.18.8-xen. For this, I have
sucessfully installed ocaml-3.12.1, findlib-1.2.7. Now when I am trying to install
febootstrap-3.13 (another prereq for libguestfs), I am getting the following error during
'make'.
[root@M febootstrap-3.13]# make
make all-recursive
make[1]: Entering directory `/home/pf/febootstrap-3.13'
Making all in lib
make[2]: Entering directory `/home/pf/febootstrap-3.13/lib'
make all-recursive
make[3]: Entering directory `/home/pf/febootstrap-3.13/lib'
make[4]: Entering directory `/home/pf/febootstrap-3.13/lib'
make[4]: Nothing to be done for `all-am'.
make[4]: Leaving directory `/home/pf/febootstrap-3.13/lib'
make[3]: Leaving directory `/home/pf/febootstrap-3.13/lib'
make[2]: Leaving directory `/home/pf/febootstrap-3.13/lib'
Making all in src
make[2]: Entering directory `/home/pf/febootstrap-3.13/src'
ocamlfind ocamlopt -warn-error CDEFLMPSUVXYZ -package unix,str -c febootstrap_cmdline.ml
-o febootstrap_cmdline.cmx
File "febootstrap_cmdline.ml", line 1, characters 0-1:
Error: Could not find the .cmi file for interface febootstrap_cmdline.mli.
make[2]: *** [febootstrap_cmdline.cmx] Error 2
make[2]: Leaving directory `/home/pf/febootstrap-3.13/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/pf/febootstrap-3.13'
make: *** [all] Error 2
Does anyone have idea to fix it.
--Irfan
12:21 p.m.
New subject: Error while compiling febootstrap (a prereq for libguestfs)
On Fri, Feb 10, 2012 at 09:51:17AM -0800, Irfan Ahmed wrote:
I want to install libguestfs in Centos 5 Kernel version
2.6.18.8-xen. For this, I have sucessfully installed ocaml-3.12.1,
findlib-1.2.7. Now when I am trying to install febootstrap-3.13
(another prereq for libguestfs), I am getting the following error
during 'make'.
It's essentially very difficult to compile libguestfs for RHEL 5. We
stopped supporting it some time ago, except for the old version of
libguestfs that ships in RHEL 5 (1.2.something, about 2 years old).
I'm not even sure what "2.6.18.8-xen" is. I don't think it's a
kernel
that Red Hat ship, and so it's not likely that it contains the bits
required to run recent libguestfs (virtio-serial etc.).
I would use RHEL 6 instead, which is supported and for which we even
build packages for you:
http://people.redhat.com/~rjones/libguestfs-RHEL-6.3-preview/
If you can't do that, then you can look here and try to make
more recent versions of these:
http://libguestfs.org/download/binaries/rhel5-packages/
but as I said above, this is going to be extremely hard work.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
New in Fedora 11: Fedora Windows cross-compiler. Compile Windows
programs, test, and build Windows installers. Over 70 libraries supprt'd
http://fedoraproject.org/wiki/MinGW http://www.annexia.org/fedora_mingw
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