Libguestfs - May 2012 - Re： Re： guestfs_mount_local* api undefined symbols

the 'hivex' had been installed actually,  hivex.x86_64 0:1.2.4-3.el6 and
perl-hivex.x86_64 0:1.2.4-3.el6,
however it just could not be detected.Maybe i should compile one rather than
just yum.
I`m not familiar with hivex,as far as i know, it can be used to modify windows
registry,
but why the inspection API had been binded with hivex when we might use
inspection api
solely with linux os instance image?


Nok




------------------ ???? ------------------
???: "Richard W.M. Jones"<rjones at redhat.com>;
????: 2012?5?11?(???) ??1:19
???: "Nok"<leolc_2749 at qq.com>; 
??: "libguestfs"<libguestfs at redhat.com>; 
??: Re:  ??? [Libguestfs] guestfs_mount_local* api undefined symbols



On Fri, May 11, 2012 at 01:03:26AM +0800, Nok wrote:
> I checked the version and found that it printed an old 1.17.17
> version which was deployed before.  But I remembered i did check the
> version in guestfish shell and it said 1.17.40 before that?then i
> totally ignored the fact i had another version involved.
Local builds act a bit differently because they contain a hidden
'RPATH' ELF entry:

  $ eu-readelf -d ./fish/.libs/lt-guestfish | grep RPATH
  RPATH             Library rpath:
[/home/rjones/d/libguestfs/src/.libs:/usr/local/lib]

This RPATH entry overrides LD_LIBRARY_PATH:

  $ LD_LIBRARY_PATH=/usr/lib64 ./fish/.libs/lt-guestfish --version
  guestfish 1.17.40

For the builds that we provide in Fedora and RHEL, we strip out RPATH:

  $ eu-readelf -d /usr/bin/guestfish | grep RPATH
  $ /usr/bin/guestfish --version
  /usr/bin/guestfish 1.17.36fedora=17,release=2.fc17
> I`ve changed the LD_LIBRARY_PATH and the "undefined symbol" error
> disappeared.But some "inspection API not available because of
> compiled without hivex library" pops up.I`ll check this out later.
Install the 'hivex-devel' and 'libvirt-devel' packages (from
RHEL)
before ./configure && make.

You may be able to do 'yum-builddep libguestfs' to install all the
dependencies; or else read the libguestfs.spec file (BuildRequire lines).

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-p2v converts physical machines to virtual machines.  Boot with a
live CD or over the network (PXE) and turn machines into Xen guests.
http://et.redhat.com/~rjones/virt-p2v



  
 


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On Fri, May 11, 2012 at 10:13:49AM +0800, Nok wrote:
> the 'hivex' had been installed actually, hivex.x86_64 0:1.2.4-3.el6
> and perl-hivex.x86_64 0:1.2.4-3.el6, however it just could not be
> detected.
You need 'hivex-devel'.
> I`m not familiar with hivex,as far as i know, it can be used to
> modify windows registry, but why the inspection API had been binded
> with hivex when we might use inspection api solely with linux os
> instance image?
Because the ./configure test is very simplistic, hivex is required
even if you're only going to inspect Linux guests.  In any case,
hivex(-devel) is a simple C library which is very widely available so
this is not really a problem.

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