Comment 37 for bug 653134

Any update on this?

Some users reported copying the wubildr from the c:\ubuntu\winboot\ directory over c:\wubildr fixed the problem for them - which doesn't make much sense to me - but I've seen 3 comments stating that this worked. My own broken wubi install is still the same (error: no suitable mode).
Others are applying the workaround to loop mount the root.disk and edit the grub.cfg. But obviously this is a pain and will have to be repeated after each kernel update.