Using AMD with NFS Mounts

Tim Gustafson tjg at soe.ucsc.edu
Tue Aug 28 17:06:53 UTC 2012


Unrelated to my existing ZFS issue, I also have an NFS/AMD question.

I am trying to get FreeBSD to behave more like our existing Linux, Mac
and Solaris systems when it comes to auto-mounting.  We maintain all
our mount information in our LDAP server, and Linux, Mac and Solaris
act upon that data directly using autofs.  I know that FreeBSD prefers
AMD, so I'm willing to write a script that exports the data from the
LDAP server into AMD-map format, but I'm having a problem getting even
the basics to go.  My configuration files are included below.

AMD runs, and the log file indicates that it's ready to accept
requests, but when I try to cd into any AMD-hosted folder, I get
miscellaneous errors related to "too many levels of symlinks" or
flat-out permission denied errors.  Sometimes I am able to re-start
AMD, and other time re-starting AMD hangs.  I can statically mount the
filesystems in question by hand, so I'm sure the "permission denied"
errors are not NFS-related.

I'm guessing that I have some minor error in my configuration file,
but I can't see what it is.  What am I missing?  Here's the output
from my syslog:

amd[1983]: switched to logfile "syslog:daemon"
amd[1983]: AM-UTILS VERSION INFORMATION:
amd[1983]: Copyright (c) 1997-2006 Erez Zadok
amd[1983]: Copyright (c) 1990 Jan-Simon Pendry
amd[1983]: Copyright (c) 1990 Imperial College of Science, Technology & Medicine
amd[1983]: Copyright (c) 1990 The Regents of the University of California.
amd[1983]: am-utils version 6.1.5 (build 900044).
amd[1983]: Report bugs to https://bugzilla.am-utils.org/ or
am-utils at am-utils.org.
amd[1983]: Configured by David O'Brien <obrien at FreeBSD.org> on date
4-December-2007 PST.
amd[1983]: Built by root at client.soe.ucsc.edu.
amd[1983]: cpu=amd64 (little-endian), arch=amd64, karch=amd64.
amd[1983]: full_os=freebsd9.0, os=freebsd9, osver=9.0,
vendor=undermydesk, distro=The FreeBSD Project.
amd[1983]: domain=soe.ucsc.edu, host=client, hostd=client.soe.ucsc.edu.
amd[1983]: Map support for: root, passwd, union, nis, ndbm, file, exec, error.
amd[1983]: AMFS: nfs, link, nfsx, nfsl, host, linkx, program, union, ufs, cdfs,
amd[1983]:       pcfs, auto, direct, toplvl, error, inherit.
amd[1983]: FS: cd9660, nfs, nfs3, nullfs, msdosfs, ufs, unionfs.
amd[1983]: Network 1: wire=*SNIP*
amd[1983]: Network 2: wire=*SNIP*
amd[1983]: My ip addr is 127.0.0.1
amd[1984]: released controlling tty using setsid()
amd[1984]: Locked process pages in memory
amd[1984]: file server localhost, type local, state starts up
amd[1984]: /dev/ad8s1a restarted fstype ufs on /, flags 0x89
amd[1984]: devfs restarted fstype link on /dev, flags 0x89
amd[1984]: procfs restarted fstype link on /proc, flags 0x89
amd[1984]: fdescfs restarted fstype link on /dev/fd, flags 0x89
amd[1984]: Unknown host: pid1715 at client
amd[1984]: pid1715 at client:/projects restarted fstype nfs on /projects,
flags 0x29
amd[1984]: Unknown host: pid1715 at client
amd[1984]: pid1715 at client:/soe restarted fstype nfs on /soe, flags 0x29
amd[1984]: pid1715 at client:/soe referenced fstype nfs on /soe
amd[1984]: /soe set to timeout in 30 seconds
amd[1984]: pid1715 at client:/projects referenced fstype nfs on /projects
amd[1984]: /projects set to timeout in 30 seconds
amd[1984]: WARNING: automounter going down on signal 15
amd[1984]: WARNING: automounter going down on signal 15

And, here are my configuration files:

====================
amd.conf
====================
[ global ]
 browsable_dirs = no
 map_type = file
 mount_type = nfs
 cache_duration = 30
 autofs_use_lofs = yes
 log_file = syslog:daemon
 log_options = fatal,error
 print_pid = yes
 pid_file = /var/run/amd.pid
 restart_mounts = yes
 selectors_in_defaults = no

[ /soe ]
 map_name = /etc/amd/soe.map

[ /projects ]
 map_name = /etc/amd/projects.map

====================
soe.map
====================
/defaults type:=nfs;opts:=tcp,soft,nodev,nosuid,umount,vers=3
* fs:=/soe/${key};rhost:=fs2;rfs:=/export/home/${key}
tjg fs:=/soe/tjg;rhost:=bsd-06;rfs:=/tank/export/home/tjg

====================
projects.map
====================
/defaults type:=nfs;opts:=tcp,soft,nodev,nosuid,umount,vers=3
* fs:=/projects/${key};rhost:=fs2;rfs:=/export/projects/${key}

-- 

Tim Gustafson
tjg at soe.ucsc.edu
831-459-5354
Baskin Engineering, Room 313A


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