Reinstall from flar archive

Hello:
I am reinstalling a Sun Fire 480R (host name fx3) from its flar archive,
getting several errors:

Flar archive filebs information:
b&
creation_release=5.10
creation_os_name=SunOS
creation_os_version=Generic_147440-15
rootpool=rootpool
bootfs=rootpool/ROOT/s10u10-1

boot from jumpstart server (host name solaris02):
ok> boot net b install   (boot from Solaris 10 u10)
/pci@9,700000/network@2: 100 Mbps full duplex link up
SunOS Release 5.10 Version Generic_147440-01 64-bit
Copyright (c) 1983, 2011, Oracle and/or its affiliates. All rights reserved.
Configuring devices.
b&
Processing profile
        - Opening Flash archive
        - Validating Flash archive
        - Selecting all disks
        - Configuring boot device
        - Configuring / (c2t0d0s0)
        - Deselecting unmodified disk (c1t10d0)
b&
ZFS send stream rootpool/ROOT/s10u10-1 gets extracted to
rootpool/ROOT/s10u10-1
ZFS send stream rootpool/apps gets extracted to rootpool/apps
Verifying disk configuration
        - WARNING: Changing the system's default boot device in the EEPROM
Verifying space allocation
        NOTE: 1 archives did not include size information
Configuring disk (c2t0d0)
        - Creating Solaris disk label (VTOC)
        - Creating pool rootpool
        - Creating swap zvol for pool rootpool
        - Creating dump zvol for pool rootpool
Beginning Flash archive processing
Extracting archive: fx3_120609
        Extracted    0.00 MB (  0% of 10197.35 MB archive)
ERROR: Could not write to pipe while processing
198.4.195.103:/flarFS/fx3_120609_c.flar
ERROR: Errors occured during the extraction of flash archive. The file
/tmp/flash_errors contains the list of errors encountered
ERROR: Could not extract Flash archive
ERROR: Flash installation failed
#
Cat /tmp/flash_errors
cannot receive: stream has unsupported feature, feature flags = 0

jumpstart server:
O/S  5.10 Generic_147440-07
/etc/bootparams entry:
fx3  root=solaris02:/jumpstart/s10u10/Solaris_10/Tools/Boot
install=solaris02:/jumpstart/s10u10 boottype=:in
sysid_config=198.4.195.103:/jumpstart/custom_js
install_config=198.4.195.103:/jumpstart/custom_js/  rootopts=:rsize=8192
Client (fx3) profile:
install_type flash_install
archive_location        nfs     198.4.195.103:/flarFS/fx3_120609_c.flar
partitioning explicit
pool    rootpool auto auto auto c2t0d0s0
Where c2t0d0 is a 146G local disk.

Thanks.
Warren