Hi Steve & Dominic,
Let me know if I should be making my own thread, but this issue looks very similar to what I'm seeing when trying to use a VMWare Fusion shared folder as an apt-cache. The deb files as downloaded from the Linux guest and shared to OSX host have big chunks of zeros cut out of them, which of course causes apt to freak out a little.
See here for the full discovery process: https://github.com/fgrehm/vagrant-cachier/issues/24
I'm psyched to use vagrant with vmware fusion in my work, but file corruption in shared folders is a *major* roadblock. Any movement on this issue in the past few weeks?
Thanks for your time!
Paul