Factotum used to mount itself on /mnt and serving the first-level
directory "factotum" itself. This has the undesired consequence
that it has to respond to all walks crossing the /mnt directory.
Instead, we make factotum interpret the previously ignored
mount-spec (aname). If it is "factotum", it serves the
factotum directory as the root, so it can be directly mounted
onto /mnt/factotum. For backwards compatibility, the old
behaviour is preserved.
The namespace file will now always mount factotum onto /mnt/factotum.
In the case of a old factotum, that ignores the mount-spec,
do a bind moving /mnt/factotum/factotum to /mnt/factotum.
theres a bootstrap problem:
when /bin/init is run, it processes /lib/namespace where we might want to
mount or bind resources to /n or /mnt. but mntgen was run later in
cpurc/termrc so these mounts would be ignored.
we already have mntgen in bootfs, so we can provide these mountpoints early.
i keep the termrc/cpurc mntgens where they are, but ignore the error
prints. this way old kernels will continue to work.
this makes sure tcp boot will have ther user /tmp's
the same way as from local cwfs. we used /srv/cwfs
to prevent a deadlock with 9660srv as a root filesystem
which has been fixed now.
