Thanks for the help, Ivan. Regarding to this I just realized I'm having some problem with the dissemination:
dpsace:/var/www/dspace/bin# ./dspace packager -d -a -t AIP -e
mai...@ull.es -i 915/0 e.zip
INFO [main] (DSpaceKernelInit.java:52) - Created new kernel: DSpaceKernel:org.dspace:name=ec27d1a3-4edd-41eb-990f-96fc84b51219,type=DSpaceKernel:lastLoad=null:loadTime=0:running=false:kernel=null
INFO [main] (ConfigurationManager.java:1224) - Loading from classloader: file:/opt/www/dspace/config/dspace.cfg
INFO [main] (ConfigurationManager.java:1224) - Using dspace provided log configuration (log.init.config)
INFO [main] (ConfigurationManager.java:1224) - Loading: /opt/www/dspace/config/log4j.properties
Disseminating DSpace SITE [ hdl=915/0 ] to e.zip
Also disseminating all child objects (recursive mode)..
This may take a while, please check your logs for ongoing status while we process each package.
Exception: No such file or directory
java.io.IOException: No such file or directory
at java.io.UnixFileSystem.createFileExclusively(Native Method)
at java.io.File.checkAndCreate(File.java:1717)
at java.io.File.createTempFile0(File.java:1738)
at java.io.File.createTempFile(File.java:1815)
at org.dspace.content.crosswalk.RoleCrosswalk.disseminateElement(RoleCrosswalk.java:186)
at org.dspace.content.packager.AbstractMETSDisseminator.crosswalkToMetsElement(AbstractMETSDisseminator.java:1359)
at org.dspace.content.packager.AbstractMETSDisseminator.makeMdSec(AbstractMETSDisseminator.java:614)
at org.dspace.content.packager.AbstractMETSDisseminator.addToAmdSec(AbstractMETSDisseminator.java:727)
at org.dspace.content.packager.AbstractMETSDisseminator.addAmdSec(AbstractMETSDisseminator.java:753)
at org.dspace.content.packager.AbstractMETSDisseminator.makeManifest(AbstractMETSDisseminator.java:839)
at org.dspace.content.packager.AbstractMETSDisseminator.writeZipPackage(AbstractMETSDisseminator.java:311)
at org.dspace.content.packager.AbstractMETSDisseminator.disseminate(AbstractMETSDisseminator.java:258)
at org.dspace.content.packager.DSpaceAIPDisseminator.disseminate(DSpaceAIPDisseminator.java:160)
at org.dspace.content.packager.AbstractPackageDisseminator.disseminateAll(AbstractPackageDisseminator.java:86)
at org.dspace.app.packager.Packager.disseminate(Packager.java:636)
at org.dspace.app.packager.Packager.main(Packager.java:460)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:183)