Bug 25106 – Support NFSv4 with 2.5 and 2.6 kernels

• Product: Gentoo Linux
• Status: RESOLVED FIXED

[Description Michael Locher 2003-07-23 02:32:12 UTC]

NFSv4 support has been added to 2.5 and 2.6 kernels.
Some userspace tools need patches/updates. check the provided url for details.

rpc_pipefs needs to be mounted to /var/lib/rpc_pipes 
nfsd filesystem needs to be mounted to /proc/fs/nfs
idmap daemon needs to be started after mountd 

/sbin/mount needs a patch. (already integrated in util-linux ebuild)
empty directory /var/lib/nfs/v4root should be created by the nfs-utils ebuild.

for GSS security the gssd daemon and a patch to mit-krb5 is needed. (see
http://www.citi.umich.edu/projects/nfsv4/rpcsec_gss-linux/ )

for general information about NFSv4 refer to
http://www.nluug.nl/events/sane2000/papers/pawlowski.pdf

[Comment 1 Michael Locher 2003-07-23 03:06:01 UTC]

Created attachment 14899 [details, diff]
patch to /etc/init.d/nfs to activate server-side features

note: /etc/init.d/netmount must check if there are NFSv4 mounts and start the
idmapd and mount rpc_pipefs.

[Comment 2 Michael Locher 2003-07-23 03:12:25 UTC]

Created attachment 14901 [details]
ebuild for the idmap daemon

[Comment 3 Brian Jackson (RETIRED) 2003-10-20 21:55:27 UTC]

this looks like it's not really kernel related, I think might be for Azarah,
but I'll boot it back to bug-wranglers in case anybody else wants to have
a go

[Comment 4 Steve Arnold 2004-03-14 19:45:52 UTC]

This appears to be required for nfs between machines running 2.6.3 or better:

CONFIG_SECURITY=y
CONFIG_SECURITY_CAPABILITIES=y

or:

CONFIG_SECURITY=y
CONFIG_SECURITY_CAPABILITIES=m
and modprobe capability

Modprobing capability seems to have fixed my nfs connection errors; the 
errors only started after migrating an nfs server from a 2.4.20 RH machine 
to a 2.6.3 gentoo box (same 2.6.3 gentoo client).

http://www.ussg.iu.edu/hypermail/linux/kernel/0311.3/0436.html

[Comment 5 SpanKY 2004-06-08 12:05:40 UTC]

ive added idmapd to net-fs and updated nfs-utils to update the init.d
script (1.0.6-r2)

all that needs to be done now is update /etc/init.d/netmount which
is part of baselayout

[Comment 6 SpanKY 2004-06-08 12:12:31 UTC]

Created attachment 32928 [details, diff]
netmount.patch

proposed patch for netmount

[Comment 7 SpanKY 2004-10-02 23:03:10 UTC]

added my little patch to cvs baselayout