[FIXED HUDSON-3044] Recover from missing libzfs. Will be in 1.285.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@15433 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/os/solaris/ZFSInstaller.java

@@ -117,6 +117,9 @@ public class ZFSInstaller extends AdministrativeMonitor implements Serializable
         } catch (Exception e) {
             LOGGER.log(Level.WARNING, "Failed to detect whether Hudson is on ZFS",e);
             return false;
+        } catch (LinkageError e) {
+            LOGGER.log(Level.WARNING, "No ZFS available",e);
+            return false;
         }
     }