Make sure that "modprobe -c" shows an alias for the loop module.
Otherwise, add the following line to "/etc/conf.modules":
alias block-major-7 loop
I'm still trying to find the free time to make a new release of the module
support package. By then modprobe will hopefully have an even larger set
of pre-configured aliases, based on linux/Documentation/devices.
>
> A quick glance at loop.c shows that there apparently is no
> support for kerneld in there. Was this done on purpose?
Yes. The (generic) support is placed in "linux/fs/devices.c".
Bjorn