root over nfs, error -93

[Julius <julius.junghans@gmx.de>]

Hi,


im trying to get a client boot from my server via nfs. but it fails
with:

Root-NFS: Server returned error -93 while
mounting /nfs-exports/pxeclient

the client uses a vanilla 2.6.24.7 kernel with these settings:
<*>   NFS file system support 
 [*]     Provide NFSv3 client support 
 [*]       Provide client support for the NFSv3 ACL protocol extension 
 [*]   Root file system on NFS
 [*]   Support for rpcbind versions 3 & 4 (EXPERIMENTAL)


full config:
http://metalfan2.me.funpic.de/.config


kernel append line:
append root=/dev/nfs nfsroot=192.168.11.3:/nfs-exports/pxeclient ip=dhcp


the system successfully boots the kernel via syslinux and requests its
ip via dhcp


server:
rpcinfo -p localhost
   program vers proto   port
    100000    2   tcp    111  portmapper
    100000    2   udp    111  portmapper
    100024    1   udp  54039  status
    100024    1   tcp  57693  status
    100005    3   udp  48497  mountd
    100005    3   tcp  34406  mountd
    100003    2   udp   2049  nfs
    100003    3   udp   2049  nfs
    100003    4   udp   2049  nfs
    100021    1   udp  47061  nlockmgr
    100021    3   udp  47061  nlockmgr
    100021    4   udp  47061  nlockmgr
    100003    2   tcp   2049  nfs
    100003    3   tcp   2049  nfs
    100003    4   tcp   2049  nfs
    100021    1   tcp  54896  nlockmgr
    100021    3   tcp  54896  nlockmgr
    100021    4   tcp  54896  nlockmgr

nfs-utils-1.1.0



Any ideas whats wrong?