I have installed the RTnet over Xenomai. RTnet compiled well, and I also tested loopback on the single machine and was able to ping.

However I noticed ./rtnet start showing the following output: What should I interpret when all it says is "no such device"?

What more info should I provide here for you to help me in getting rid of this error?

linux-y3pi:/usr/local/rtnet/sbin # ./rtnet start

rteth0: unknown interface: No such device
rteth0-mac: unknown interface: No such device
ioctl: No such device
ioctl: No such device
ioctl: No such device
ioctl: No such device
ioctl (add): No such device
vnic0: unknown interface: No such device
SIOCSIFADDR: No such device
vnic0: unknown interface: No such device
SIOCSIFNETMASK: No such device
Waiting for all slaves...ioctl: No such device
ioctl: No such device

linux-y3pi:/usr/local/rtnet/sbin #

lsmod:

linux-y3pi:/usr/local/rtnet/sbin # lsmod
Module                  Size  Used by
tdma                   18281  0 
rtmac                   9274  1 tdma
rtcfg                  49485  0 
rtcap                   7216  0 
rt_loopback             1563  2 
rtpacket                5517  0 
rtudp                  10655  0 
rt_8139too             11374  0 
rtipv4                 22842  2 rtcfg,rtudp
rtnet                  42130  9 tdma,rtmac,rtcfg,rtcap,rt_loopback,rtpacket,rtudp,rt_8139too,rtipv4
ip6t_LOG                8480  6 
xt_tcpudp               3540  2 
xt_pkttype              1176  3 
ipt_LOG                 8201  6 
xt_limit                2159  12 
snd_pcm_oss            44878  0 
snd_mixer_oss          15151  1 snd_pcm_oss
snd_seq                55731  0 
s    nd_seq_device          6698  1 snd_seq
edd                     8407  0 
ip6t_REJECT             4306  3 
nf_conntrack_ipv6       8186  4 
nf_defrag_ipv6         10128  1 nf_conntrack_ipv6
ip6table_raw            1451  1 
xt_NOTRACK              1112  4 
ipt_REJECT              2397  3 
xt_state                1314  8 
iptable_raw             1478  1 
iptable_filter          1706  1 
ip6table_mangle         1756  0 
nf_conntrack_netbios_ns     1678  0 
nf_conntrack_ipv4       8957  4 
nf_conntrack           80411  5 nf_conntrack_ipv6,xt_NOTRACK,xt_state,nf_conntrack_netbios_ns,nf_conntrack_ipv4
nf_defrag_ipv4          1561  1 nf_conntrack_ipv4
ip_tables              18872  2 iptable_raw,iptable_filter
ip6table_filter         1679  1 
ip6_tables             19066  4 ip6t_LOG,ip6table_raw,ip6table_mangle,ip6table_filter
x_tables               24094  16 ip6t_LOG,xt_tcpudp,xt_pkttype,ipt_LOG,xt_limit,ip6t_REJECT,ip6table_raw,xt_NOTRACK,ipt_REJECT,xt_state,iptable_raw,iptable_filter,ip6table_mangle,ip_tables,ip6table_filter,ip6_tables
fuse                   69279  3 
loop                   17417  0 
dm_mod                 71671  0 
snd_hda_codec_via      57768  1 
snd_hda_intel          24871  2 
snd_hda_codec          95006  2 snd_hda_codec_via,snd_hda_intel
snd_hwdep               6540  1 snd_hda_codec
snd_pcm                90716  3 snd_pcm_oss,snd_hda_intel,snd_hda_codec
snd_timer              22050  2 snd_seq,snd_pcm
snd                    71410  14 snd_pcm_oss,snd_mixer_oss,snd_seq,snd_seq_device,snd_hda_codec_via,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore               7854  1 snd
iTCO_wdt               11716  0 
iTCO_vendor_support     2942  1 iTCO_wdt
snd_page_alloc          8324  2 snd_hda_intel,snd_pcm
sr_mod                 13186  0 
cdrom                  37628  1 sr_mod
i2c_i801                9677  0 
pcspkr                  1950  0 
sg                     28847  0 
serio_raw               4534  0 
ext4                  361361  2 
jbd2                   82943  1 ext4
crc16                   1699  1 ext4
i915                  500199  2 
drm_kms_helper         33537  1 i915
drm                   211193  3 i915,drm_kms_helper
sd_mod                 33977  5 
i2c_algo_bit            5625  1 i915
intel_agp              11529  1 i915
intel_gtt              16397  3 i915,intel_agp
ata_generic             3787  0 
ata_piix               22875  4 
ahci                   20097  0 
libahci                22089  1 ahci
libata                194812  4 ata_generic,ata_piix,ahci,libahci
scsi_mod              204709  4 sr_mod,sg,sd_mod,libata
linux-y3pi:/usr/local/rtnet/sbin #