Hello, Basically, the summary says it all: although everything suggests nfsmount (from net-fs/nfs-utils-1.1.0-r1) should automatically pull in rpc.idmapd if fstab contains entries with filesystem nfs4, on my system it doesn't. I suspect the awk expression used for that purpose doesn't like my fstab for some reason, unfortunately I don't know awk so I cannot debug the problem myself. For now I have simply added rpc.idmapd to runlevel default, where it starts without problems. Attached you will find the nfs4 mount lines from my fstab, with altered naming but preserved syntax.
Created attachment 146115 [details] Part of my fstab pertaining to nfs4 mounts
fixed in cvs http://sources.gentoo.org/net-fs/nfs-utils/files/nfsmount.initd?r1=1.8&r2=1.9