Re: nfs: install modprobe config file

[Harald Hoyer <harald-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>]

Am 11.07.2012 07:08, schrieb Dave Young:
> install nfs modprobe config file
> 
> For nfs4, in case nfs.ko is not loaded mount.nfs4 will try to load
> nfs4.ko instead of nfs.ko. Fedora nfs-utils creates a lib/modprobe.d/nfs.conf
> in which there's below alias:
> alias nfs4 nfs
> 
> Dracut also need this file to auto load nfs kernel module.
> 
> Tested booting to a fedora 17 nfsroot share.
> 
> Signed-off-by: Dave Young <dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> ---
>  modules.d/95nfs/module-setup.sh  |    6 ++++++
>  modules.d/95nfs/parse-nfsroot.sh |    7 -------
>  2 files changed, 6 insertions(+), 7 deletions(-)
> 
> --- dracut.orig/modules.d/95nfs/module-setup.sh
> +++ dracut/modules.d/95nfs/module-setup.sh
> @@ -35,6 +35,12 @@ install() {
>          mount.nfs4 umount rpc.idmapd sed /etc/netconfig
>      dracut_install /etc/services /etc/nsswitch.conf /etc/rpc /etc/protocols /etc/idmapd.conf
>  
> +    if [ -f /lib/modprobe.d/nfs.conf ]; then
> +        dracut_install /lib/modprobe.d/nfs.conf
> +    else
> +        echo "alias nfs4 nfs" > $initdir/etc/modprobe.d/nfs.conf
> +    fi
> +
>      inst_libdir_file 'libnfsidmap_nsswitch.so*' 'libnfsidmap/*.so' 'libnfsidmap*.so*'
>  
>      _nsslibs=$(sed -e '/^#/d' -e 's/^.*://' -e 's/\[NOTFOUND=return\]//' /etc/nsswitch.conf \
> --- dracut.orig/modules.d/95nfs/parse-nfsroot.sh
> +++ dracut/modules.d/95nfs/parse-nfsroot.sh
> @@ -88,13 +88,6 @@ nfsroot_to_var $netroot
>  # Set fstype, might help somewhere
>  fstype=${nfs#/dev/}
>  
> -# NFS actually supported? Some more uglyness here: nfs3 or nfs4 might not
> -# be in the module...
> -if ! incol2 /proc/filesystems $fstype ; then
> -    modprobe nfs
> -    incol2 /proc/filesystems $fstype || die "nfsroot type $fstype requested but kernel/initrd does not support nfs"
> -fi
> -
>  # Rewrite root so we don't have to parse this uglyness later on again
>  netroot="$fstype:$server:$path:$options"
>  
> 


Hmm... that modprobe.d conf file should have been already copied to the initramfs:

modules.d/90kernel-modules/module-setup.sh:    dracut_install $(find -L
/etc/modprobe.d/ -maxdepth 1 -type f -name '*.conf')

Oh.. I see ... it's /lib/modprobe.d and not /etc/modprobe.d