[K12OSN] smbldap - root cannot access all folders on nfs mounted /home

[Krsnendu dasa]

I have installed K12LTSP6 and setup authentication from smbldap on the
previous K12LTSP5 server.
I have nfs exported /home from K12LTSP5 and mounted it.

When I go to /home as root in nautilus it says I do not have access to
some of the directories.
Shouldn't root be able to access any file or directory?

It seems to recognize the name root, but as an ordinary user not the superuser.
I check in visudo and root is set up as superuser.

How can I fix this?

[root at k12ltsp1 ~]# ls -al /home
total 76
drwxr-xr-x 14 root     root      4096 Jan  9 14:57 .
drwxr-xr-x 26 root     root      4096 Jan 14 15:34 ..
drwx------ 43 aruni    staff     4096 Nov  9 12:38 aruni
drwxrwxr-x  4 BackupPC BackupPC  4096 Dec 19 06:25 BackupPC
drwxr-xr-- 84 krsnendu admin    12288 Jan  9 22:04 krsnendu
drwxrwxrwx  6 root     root      4096 Jan  9 15:50 multimedia
drwx------ 31 nikunja  staff     4096 Jan 13 23:19 nikunja
drwxrwxrwx  2 root     root      4096 Jan  9 14:57 old
drwxrwxrwx 10 root     root      4096 Jan  9 15:07 oldwindows
drwx------ 23 prana    staff     4096 Oct  4 19:25 prana
lrwxrwxrwx  1 root     root         5 Aug  5 18:06 root -> /root
drwxrwx--- 10 krsnendu staff     4096 Jan  9 15:24 School Intranet
drwxrwxrwx 12 krsnendu students  4096 Jan 13 23:06 students
drwxrwx--x 40 vaisnavi admin     4096 Jan 15 09:19 vaisnavi
drwx------ 34 vimala   staff     4096 Dec 14 11:18 vimala


There are the relevant lines.
K12LTSP5:/etc/exports

/home                    192.168.0.0/255.255.255.0(rw,root_squash,sync)


K12LTSP6:/etc/fstab
192.168.0.254:/home /home   nfs    defaults 0 0