10.7.4 image does not mount

All: I am trying to rebuild my base image using the InstallESD.dmg from the 10.7.4 Lion installer, and I am encountering an error: [code] a201353:Storage acunning$ sudo /Volumes/Storage/instadmg/instadmg.bash -f -t / -m 10.7.4_Lion.hfs.dmg -n "Macintosh HD" 13:23:41 ###### InstaDMG build initiated ###### InstaDMG version 1.6rc1 (svn revision: 425) Host OS: Mac OS X Server 10.7.3 Host Hardware: MacBookPro6,2 Output file name: 10.7.4_Lion.hfs.dmg Output disk name: Macintosh HD 13:23:41 ###### Finding main MacOS X installer disk ###### Found primary OS installer disk: /Volumes/Storage/instadmg/InstallerFiles/BaseOS/InstallESD.dmg 13:23:41 ###### Looking for a Cached Image ###### No cached image found 13:23:42 ###### Mounting Mac OS X installer image ###### ###### Unable to mount : The image was not mounted where expected! Was "/idmg.COqW/idmg_temp.Ol8bD8", expected ://idmg.COqW/idmg_temp.Ol8bD8" ###### 13:23:45 ###### Cleaning up ###### Restoring normal installd daemon Ejecting images [/code] Notice the "image was not mounted where expected" error, with the paths differing only by a single extra forward slash. Is this a bug with the 10.7.4 installer, or a problem with InstaDMG 1.6rc1? Or perhaps I am doing something wrong? Thanks for any advice, -Andy