Mini Shell

#!/usr/bin/sh

if modprobe sunrpc || strstr "$(cat /proc/filesystems)" rpc_pipefs; then
    [ ! -d /var/lib/nfs/rpc_pipefs/nfs ] \
        && mount -t rpc_pipefs rpc_pipefs /var/lib/nfs/rpc_pipefs

    # Start rpcbind or rpcbind
    # FIXME occasionally saw 'rpcbind: fork failed: No such device' -- why?
    command -v portmap > /dev/null && [ -z "$(pidof portmap)" ] && portmap
    if command -v rpcbind > /dev/null && [ -z "$(pidof rpcbind)" ]; then
        mkdir -p /run/rpcbind
        chown rpc:rpc /run/rpcbind
        rpcbind
    fi

    # Start rpc.statd as mount won't let us use locks on a NFSv4
    # filesystem without talking to it. NFSv4 does locks internally,
    # rpc.lockd isn't needed
    command -v rpc.statd > /dev/null && [ -z "$(pidof rpc.statd)" ] && rpc.statd
    command -v rpc.idmapd > /dev/null && [ -z "$(pidof rpc.idmapd)" ] && rpc.idmapd
else
    warn 'Kernel module "sunrpc" not in the initramfs, or support for filesystem "rpc_pipefs" missing!'
fi