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EDIT :: parse-nfsroot.sh

#!/bin/sh # # Preferred format: # root=nfs[4]:[server:]path[:options] # # This syntax can come from DHCP root-path as well. # # Legacy format: # root=/dev/nfs nfsroot=[server:]path[,options] # # In Legacy root=/dev/nfs mode, if the 'nfsroot' parameter is not given # on the command line or is empty, the dhcp root-path is used as # [server:]path[:options] or the default "/tftpboot/%s" will be used. # # If server is unspecified it will be pulled from one of the following # sources, in order: # static ip= option on kernel command line # DHCP next-server option # DHCP server-id option # DHCP root-path option # # NFSv4 is only used if explicitly requested with nfs4: prefix, otherwise # NFSv3 is used. # type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh # This script is sourced, so root should be set. But let's be paranoid [ -z "$root" ] && root=$(getarg root=) [ -z "$nfsroot" ] && nfsroot=$(getarg nfsroot=) [ -n "$netroot" ] && oldnetroot="$netroot" # netroot= cmdline argument must be ignored, but must be used if # we're inside netroot to parse dhcp root-path if [ -n "$netroot" ] ; then for n in $(getargs netroot=); do [ "$n" = "$netroot" ] && break done if [ "$n" = "$netroot" ]; then #warn "Ignoring netroot argument for NFS" netroot=$root fi else netroot=$root; fi # LEGACY: nfsroot= is valid only if root=/dev/nfs if [ -n "$nfsroot" ] ; then # @deprecated warn "Argument nfsroot is deprecated and might be removed in a future release. See 'man dracut.kernel' for more information." if [ "$(getarg root=)" != "/dev/nfs" ]; then die "Argument nfsroot only accepted for legacy root=/dev/nfs" fi netroot=nfs:$nfsroot; fi case "$netroot" in /dev/nfs) netroot=nfs;; /dev/*) if [ -n "$oldnetroot" ]; then netroot="$oldnetroot" else unset netroot fi return ;; # LEGACY: root=<server-ip>:/<path [0-9]*:/*|[0-9]*\.[0-9]*\.[0-9]*[!:]|/*) netroot=nfs:$netroot;; esac # Continue if nfs case "${netroot%%:*}" in nfs|nfs4|/dev/nfs);; *) if [ -n "$oldnetroot" ]; then netroot="$oldnetroot" else unset netroot fi return ;; esac # Check required arguments if nfsdomain=$(getarg rd.nfs.domain -d rd_NFS_DOMAIN); then if [ -f /etc/idmapd.conf ]; then sed -i -e \ "s/^[[:space:]#]*Domain[[:space:]]*=.*/Domain = $nfsdomain/g" \ /etc/idmapd.conf fi # and even again after the sed, in case it was not yet specified echo "Domain = $nfsdomain" >> /etc/idmapd.conf fi nfsroot_to_var $netroot [ "$path" = "error" ] && die "Argument nfsroot must contain a valid path!" # Set fstype, might help somewhere fstype=${nfs#/dev/} # Rewrite root so we don't have to parse this uglyness later on again netroot="$fstype:$server:$path:$options" # If we don't have a server, we need dhcp if [ -z "$server" ] ; then DHCPORSERVER="1" fi; # Done, all good! rootok=1 # Shut up init error check or make sure that block parser wont get # confused by having /dev/nfs[4] root="$fstype" echo '[ -e $NEWROOT/proc ]' > $hookdir/initqueue/finished/nfsroot.sh mkdir -p /var/lib/rpcbind chown rpc:rpc /var/lib/rpcbind chmod 770 /var/lib/rpcbind

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