Hello,
I have a few Ubuntu 9.10 laptops I'm trying to learn NFS sharing with. I am just experimenting on this right now, so no harsh words about the security of what I'm playing with, please 
Below are the configs
/etc/exports on host
/home/woodnt/Homeschool 192.168.1.0/24(rw,async,no_root_squash)
/home/share/HomeSchool 192.168.1.0/24(rw,async,no_root_squash)
/HomeSchool 192.168.1.0/24(rw,async,no_root_squash)
/home 192.168.1.0/24(rw,async,no_root_squash)
/ 192.168.1.0/24(rw,async,no_root_squash)
mounts on client
toshiba-laptop:/home/woodnt/Homeschool on /mnt/mnt1 type nfs (rw,addr=192.168.1.54)
toshiba-laptop:/home/share/HomeSchool on /mnt/mnt2 type nfs (rw,addr=192.168.1.54)
toshiba-laptop:/HomeSchool on /mnt/mnt3 type nfs (rw,addr=192.168.1.54)
toshiba-laptop:/ on /mnt/mnt4 type nfs (rw,addr=192.168.1.54)
toshiba-laptop:/home on /mnt/mnt5 type nfs (rw,addr=192.168.1.54)
on the host machine, /bin and /home have the same permissions:
woodnt@toshiba-laptop$ ls -dl home bin
drwxr-xr-x 2 root root 4096 2009-12-22 23:21 bin
drwxr-xr-x 16 root root 4096 2009-12-23 20:45 home
also on the host machine /home/woodnt and /HomeSchool have the same permissions:
woodnt@toshiba-laptop$ ls -ld /home/woodnt /HomeSchool/
drwxr-xr-x 2 woodnt woodnt 4096 2010-01-08 18:48 /HomeSchool/
drwxr-xr-x 95 woodnt woodnt 4096 2010-01-08 20:21 /home/woodnt
Also, these have the same permissions on the host machine.
woodnt@toshiba-laptop$ ls -ld /bin/bash /home /home/2009-12-22-22-img-of-os/ /home/2009-12-22-22-img-of-os/parts
-rwxr-xr-x 1 root root 917960 2009-09-14 00:08 /bin/bash
drwxr-xr-x 16 root root 4096 2009-12-23 20:45 /home
drwxr-xr-x 2 root root 4096 2009-12-22 16:34 /home/2009-12-22-22-img-of-os/
-rwxr-xr-x 1 root root 5 2009-12-22 16:34 /home/2009-12-22-22-img-of-os/parts
From the client:
woodnt@luke-netbook:/mnt/mnt4$ ls -ld bin bin/bash
drwxr-xr-x 2 root root 4096 2009-12-22 23:21 bin
-rwxr-xr-x 1 root root 917960 2009-09-14 00:08 bin/bash
woodnt@luke-netbook:/mnt/mnt4$ ls home
woodnt@luke-netbook:/mnt/mnt4$
And I can see /bin, everything in /bin like /bin/bash, but not /home and any home contents.
I have the same GID and UID on both boxes (1000, not that that matters).
On the client with everything mounted as above, I can:
ls the contents of /bin, /home (via /mnt/mnt5), /, /home/woodnt/Homeschool/, /home/share/HomeScool, and /HomeSchool.
When I am on the mountpoint /mnt/mnt4 where the whole root directory is mounted and I " $ ls /mnt/mnt4/home " I get bupkis. Nada. Zilch.
Why can I see /home mounted on /mnt/mnt5 but not as a subdir of / when from the /mnt/mnt4?
I'm the same user in the same group logged into the same mountpoints on every one, but I can see inside the host /home when it is mounted directly, but not when it is mounted as root and cd'd too.
What gives?
Thanks for the help in advance,
Narnie
---------- Post updated at 11:22 PM ---------- Previous update was at 09:35 PM ----------
I set it up similarly on the same computer exporting only the root (/) directory. Same problem. Can't be a user/group problem or permission problem because it is the same user on the same computer/
The mount of root is to /mnt/mnt1
Notice the permissions below. I even cp -a /bin/bash /home just to have the same file with the same permissions and yet I can't see bash in /mnt/mnt1/home
Really crazy. This is duplicated on another pair of computers setups as well. not just this computer and the netbook above.
woodnt@toshiba-laptop / $ ls -ld /mnt/mnt1/home/ mnt/mnt1/bin/
drwxr-xr-x 2 root root 4096 2009-12-22 23:21 mnt/mnt1/bin/
drwxr-xr-x 2 root root 4096 2009-12-22 16:43 /mnt/mnt1/home/
woodnt@toshiba-laptop / $ ls -ld bin/ home/
drwxr-xr-x 2 root root 4096 2009-12-22 23:21 bin/
drwxrwxrwx 16 root root 4096 2010-01-08 23:10 home/
woodnt@toshiba-laptop / $ ls -l bin/bash home/bash
-rwxr-xr-x 1 root root 917960 2009-09-14 00:08 bin/bash
-rwxr-xr-x 1 root root 917960 2009-09-14 00:08 home/bash
woodnt@toshiba-laptop / $ ls -ld /mnt/mnt1/home/ mnt/mnt1/bin/
drwxr-xr-x 2 root root 4096 2009-12-22 23:21 mnt/mnt1/bin/
drwxr-xr-x 2 root root 4096 2009-12-22 16:43 /mnt/mnt1/home/
woodnt@toshiba-laptop / $ ls /mnt/mnt1/home/ mnt/mnt1/bin/
mnt/mnt1/bin/:
bash dumpkeys mktemp sh
bunzip2 echo more sh.distrib
bzcat ed mount sleep
bzcmp egrep mountpoint stty
bzdiff false mt su
bzegrep fgconsole mt-gnu sync
bzexe fgrep mv tailf
bzfgrep fuser nano tar
bzgrep fusermount nc tempfile
bzip2 grep nc.traditional touch
bzip2recover gunzip netcat true
bzless gzexe netstat ulockmgr_server
bzmore gzip ntfs-3g umount
cat hostname ntfs-3g.probe uname
chgrp ip open uncompress
chmod kbd_mode openvt unicode_start
chown keyctl pidof vdir
chvt kill ping which
cp less ping6 zcat
cpio lessecho ps zcmp
dash lessfile pwd zdiff
date lesskey rbash zegrep
dbus-cleanup-sockets lesspipe readlink zfgrep
dbus-daemon ln rm zforce
dbus-uuidgen loadkeys rmdir zgrep
dd login rnano zless
df ls run-parts zmore
dir lsmod sed znew
dmesg mkdir setfont
dnsdomainname mknod setupcon
/mnt/mnt1/home/:
woodnt@toshiba-laptop / $
again, nothing under /mnt/mnt1/home 
errrrrrr