2:05 a.m.
Hi all,
I would like to use libguestfs to manage the virtual disk images of virtual machines on
XenServer, which is a virtualization platform.
When I try to do some test of the Java codes contained in the libguestfs package, the
following error promped up:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no guestfs_jni in
java.library.path
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at com.redhat.et.libguestfs.GuestFS.<clinit>(GuestFS.java:44)
at test.GuestFS005Load.main(GuestFS005Load.java:27)
It seems that I need to build guestfs_jni before I could use libguestfs through Java. But
I am not clear how to get this "guestfs_jni".......
Does anybody know how to fix this problem? Thank you very very much!
3:10 a.m.
On Mon, May 23, 2011 at 03:05:28PM +0800, 毛宏 wrote:
I would like to use libguestfs to manage the virtual disk images of
virtual machines on XenServer, which is a virtualization platform.
What version of libguestfs and where did you get it from?
When I try to do some test of the Java codes contained in the
libguestfs package, the following error promped up:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no guestfs_jni in
java.library.path
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at com.redhat.et.libguestfs.GuestFS.<clinit>(GuestFS.java:44)
at test.GuestFS005Load.main(GuestFS005Load.java:27)
It seems that I need to build guestfs_jni before I could use libguestfs through Java. But
I am not clear how to get this "guestfs_jni".......
Does anybody know how to fix this problem? Thank you very very much!
If the *.so file is in some non-standard place, then you may need to
define java.library.path to be the directory containing
libguestfs_jni.so.1. For example:
java -Djava.library.path=/path/to/library Test
You may also need to set your classpath to contain the jar file.
On a Fedora host using the libguestfs-java Fedora package, I can run
libguestfs like this [see attachment for test program]:
$ CLASSPATH=/usr/share/java/libguestfs-1.11.8.jar javac Test.java
$ CLASSPATH=/usr/share/java/libguestfs-1.11.8.jar:. java Test
$ virt-filesystems -a test.img --all --long
Name Type VFS Label Size Parent
/dev/VG/LV1 filesystem ext2 - 209715200 -
/dev/VG/LV2 filesystem unknown - 209715200 -
/dev/VG/LV1 lv - - 209715200 /dev/VG
/dev/VG/LV2 lv - - 209715200 /dev/VG
/dev/VG vg - - 520093696 -
/dev/sda pv - - 520093696 -
/dev/sda device - - 524288000 -
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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毛宏