subprocess pre-removal script returned error

[T <mlist4suntong@yahoo.com>]

Hi, 

How to remove those packages that have pre-removal script errors?

This is what I tried:

  $ aptitude --purge-unused purge open-iscsi
  The following packages will be REMOVED:
    open-iscsi{p} 
  Removing open-iscsi ...
  Stopping iSCSI initiator service: succeeded.
  Removing iSCSI enterprise target modules: FATAL: Module scsi_transport_iscsi not found.
  failed.
  invoke-rc.d: initscript open-iscsi, action "stop" failed.
  dpkg: error processing open-iscsi (--purge):
   subprocess pre-removal script returned error exit status 1
  Starting iSCSI initiator service: FATAL: Module scsi_transport_iscsi not found.
  succeeded.
  Errors were encountered while processing:
   open-iscsi
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  $ apt-get remove --purge open-iscsi
  Removing open-iscsi ...
  Stopping iSCSI initiator service: succeeded.
  Removing iSCSI enterprise target modules: FATAL: Module scsi_transport_iscsi not found.
  failed.
  invoke-rc.d: initscript open-iscsi, action "stop" failed.
  dpkg: error processing open-iscsi (--purge):
   subprocess pre-removal script returned error exit status 1
  Starting iSCSI initiator service: FATAL: Module scsi_transport_iscsi not found.
  succeeded.
  Errors were encountered while processing:
   open-iscsi
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  $ dpkg --force-all --purge open-iscsi
  (Reading database ... 138056 files and directories currently installed.)
  Removing open-iscsi ...
  Stopping iSCSI initiator service: succeeded.
  Removing iSCSI enterprise target modules: FATAL: Module scsi_transport_iscsi not found.
  failed.
  invoke-rc.d: initscript open-iscsi, action "stop" failed.
  dpkg: error processing open-iscsi (--purge):
   subprocess pre-removal script returned error exit status 1
  Starting iSCSI initiator service: FATAL: Module scsi_transport_iscsi not found.
  succeeded.
  Errors were encountered while processing:
   open-iscsi

-- 
Tong (remove underscore(s) to reply)
  http://xpt.sourceforge.net/