User postinst hook script [/sbin/update-grub] exited with value 1
dpkg: error processing linux-image-2.6.18-4-686 (--configure):
 subprocess post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of linux-image-2.6-686:
 linux-image-2.6-686 depends on linux-image-2.6.18-4-686; however:
  Package linux-image-2.6.18-4-686 is not configured yet.
dpkg: error processing linux-image-2.6-686 (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 linux-image-2.6.18-4-686
 linux-image-2.6-686
E: Sub-process /usr/bin/dpkg returned an error code (1)