Yes, same with 2.5.6-22. EFI boot seems to have problems with hyphens. If I try to use ocs_prerun1="dhclient -v" ocs_prerun2="mount -t cifs //server/dir/ /home/partimag -o user=username,password=secret" , it will drop everything from the beginning to -t, and fail, as the command -t does not exist. If I get rid of -t with mount.cifs, ocs_prerun2="mount.cifs //server/dir/ /home/partimag -o user=username,password=secret", it will fail on -o. Workaround: use shell parameters to pass username and password,...