Bug#830777: nfs-common: rpc.idmapd does not start under systemd on a pure client system

[Ben Harris <bjh21@cam.ac.uk>]

Package: nfs-common
Version: 1:1.2.8-9.1
Severity: normal

Dear Maintainer,

I have a system that acts as an NFSv4 client.  It does not have
nfs-kernel-server installed.  After a recent reboot, I found that none
of the files in my NFS-mounted home directory was owned by me any more:

bjh21@wraith:~/config/platforms-ansible$ ls -l ~/.ssh
total 609
-rw-r--r-- 1 4294967294 4294967294    616 Aug 14  2015 authorized_keys
...

I found that rpc.idmapd was not running, and could not be started:

wraith:/home/bjh21/config/platforms-ansible# service nfs-idmapd status
* nfs-idmapd.service - NFSv4 ID-name mapping service
   Loaded: loaded (/lib/systemd/system/nfs-idmapd.service; static; vendor preset
   Active: inactive (dead)
wraith:/home/bjh21/config/platforms-ansible# service nfs-idmapd start
Failed to start nfs-idmapd.service: Unit nfs-server.service not found.

When I copied /lib/systemd/system/nfs-idmapd.service to 
/etc/systemd/system and commented out the line 
"BindsTo=nfs-server.service", things got better and "service nfs-idmapd 
start" worked.  After a few seconds, my home directory had the correct 
owner:

bjh21@wraith:~/config/platforms-ansible$ ls -l ~/.ssh
total 609
-rw-r--r-- 1 bjh21 bjh21    616 Aug 14  2015 authorized_keys

I think that nfs-common should arrange that rpc.idmapd is started even on 
systems without nfs-kernel-server installed, or at least that there is a 
note in NEWS.Debian telling users how to turn it back on.

--
Ben Harris, University of Cambridge Information Services.

-- Package-specific info:
-- rpcinfo --
   program vers proto   port  service
    100000    4   tcp    111  portmapper
    100000    3   tcp    111  portmapper
    100000    2   tcp    111  portmapper
    100000    4   udp    111  portmapper
    100000    3   udp    111  portmapper
    100000    2   udp    111  portmapper
    100007    2   udp    762  ypbind
    100007    1   udp    762  ypbind
    100007    2   tcp    763  ypbind
    100007    1   tcp    763  ypbind
-- /etc/default/nfs-common --
NEED_STATD=
STATDOPTS=
NEED_IDMAPD=yes
NEED_GSSD=yes
-- /etc/idmapd.conf --
[General]
Verbosity = 0
Pipefs-Directory = /run/rpc_pipefs
Domain = cam.ac.uk
[Mapping]
Nobody-User = nobody
Nobody-Group = nogroup
-- /etc/fstab --

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 4.6.0-1-686-pae (SMP w/8 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)

Versions of packages nfs-common depends on:
ii  adduser              3.115
ii  init-system-helpers  1.36
ii  libc6                2.22-13
ii  libcap2              1:2.25-1
ii  libcomerr2           1.43.1-1
ii  libdevmapper1.02.1   2:1.02.127-1
ii  libevent-2.0-5       2.0.21-stable-2+b1
ii  libgssapi-krb5-2     1.14.2+dfsg-1
ii  libk5crypto3         1.14.2+dfsg-1
ii  libkeyutils1         1.5.9-9
ii  libkrb5-3            1.14.2+dfsg-1
ii  libmount1            2.28-5
ii  libnfsidmap2         0.25-5
ii  libtirpc1            0.2.5-1
ii  libwrap0             7.6.q-25
ii  lsb-base             9.20160629
ii  rpcbind              0.2.3-0.5
ii  ucf                  3.0036

Versions of packages nfs-common recommends:
ii  python  2.7.11-2

Versions of packages nfs-common suggests:
pn  open-iscsi  <none>
pn  watchdog    <none>

-- Configuration Files:
/etc/default/nfs-common changed:
NEED_STATD=
STATDOPTS=
NEED_IDMAPD=yes
NEED_GSSD=yes


-- no debconf information