diskless client problem

hi! i setup a diskless client following the gentoo guide. When i boot the diskless client i get the following error

Code:

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Root-NFS: Server returned error -93 while mounting /netboot/diskless1
VFS: Unable to mount root fs via NFS, trying floppy.
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)

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anyone know why i get this error?