Q: How to add more modules when -H is specified?

[WANG Cong <xiyou.wangcong@xxxxxxxxx>]

Hi, dracut people,

I am not sure about the expected behaviour when I specify both
-H and --add foo (where module foo is not automatially added
by -H). It looks like with -H specified, --add foo will not
take any effect?

At least `-H --add nfs` doesn't work if my rootfs is not nfs,
I see the following check in modules.d/95nfs/module-setup.sh,

    [ $hostonly ] && ! egrep -q '/ nfs[34 ]' /proc/mounts && return 1

So, is this expected? I mean as long as I specify -H, there is
no way to add more modules? Or just the nfs check code is wrong?

Also, I am looking for a way to add all needed modules for
devices mounted in current system, as -H only adds modules
needed by rootfs.

Thanks!

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