I<febootstrap-supermin-helper> reconstructs a bootable kernel and
initramfs from a supermin appliance. First you should be familiar
-with L<febootstrap(8)>, L<febootstrap-to-initramfs(8)> and
-L<febootstrap-to-supermin(8)>.
+with L<febootstrap(8)>.
=head1 PARAMETERS
host will be included. This is safer, but can produce rather large
appliances which need a lot more memory to boot.
+=item B<-u user> | B<--user user> | B<-g group> | B<--group group>
+
+Run febootstrap-supermin-helper as an alternate user and/or group.
+C<user> and C<group> can be specified as either a name, which will
+be resolved using the system name service, or a uid/gid. Use of these
+options requires root privileges.
+
+Use of these options is required if running febootstrap-supermin-helper
+as root with the effective uid/gid set to non-root. Bash will reset
+the effective uid/gid to the real uid/gid when invoked. As
+febootstrap-supermin-helper uses bash in parts, this will result in the
+creation of an appliance with a mixture of ownerships.
+
=back
=head1 SPEED
Minimize the appliance, removing as much extraneous junk as possible.
-As well as using L<febootstrap-minimize(8)> it is worth checking for
-anything that is not necessary for your particular application and
-removing it by hand.
+=back
+
+=head1 ENVIRONMENT VARIABLES
+
+=over 4
+
+=item FEBOOTSTRAP_KERNEL
+
+If this environment variable is set, then automatic selection of the
+kernel is bypassed and this kernel is used.
+
+The environment variable should point to a kernel file,
+eg. C</boot/vmlinuz-3.0.x86_64>
+
+The corresponding module path is guessed from the kernel name, but you
+can override that by setting C<FEBOOTSTRAP_MODULES>.
+
+=item FEBOOTSTRAP_MODULES
+
+If C<FEBOOTSTRAP_KERNEL> and C<FEBOOTSTRAP_MODULES> are both set, then
+automatic selection of the kernel is bypassed and the kernel and
+module path are set to these values.
+
+The environment variable should point to a module directory,
+eg. C</lib/modules/3.0.x86_64/>
+
+This has no effect if C<FEBOOTSTRAP_KERNEL> is not set.
=back
=head1 SEE ALSO
-L<febootstrap(8)>,
-L<febootstrap-to-initramfs(8)>,
-L<febootstrap-to-supermin(8)>.
+L<febootstrap(8)>.
=head1 AUTHORS