If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
 
Linux kvm 2.6.32-ARCH #1 SMP Sun Jan 24 22:05:36 MSK 2010 i686 AMD Phenom(tm) II X2 550 Processor AuthenticAMD GNU/Linux
 
Gnu C                  4.4.2
Gnu make               3.81
binutils               2.20.0.20091101
util-linux             2.16.2
mount                  support
module-init-tools      3.11.1
e2fsprogs              1.41.9
reiserfsprogs          3.6.21
pcmciautils            015
PPP                    2.4.4
Linux C Library        2.11.1
Dynamic linker (ldd)   2.11.1
Linux C++ Library      6.0.13
Procps                 3.2.8
Net-tools              1.60
Kbd                    1.15.1
Sh-utils               8.4
wireless-tools         29
Modules Loaded         nls_utf8 cifs cpufreq_conservative nfsd exportfs nfs lockd nfs_acl auth_rpcgss sunrpc crc32c bridge stp llc snd_hda_codec_atihdmi ata_generic pata_atiixp snd_hda_codec_realtek ohci_hcd ide_pci_generic snd_hda_intel ohci1394 8250_pnp 8250 serial_core snd_hda_codec snd_pcm snd_timer ieee1394 r8169 mii snd soundcore snd_page_alloc skge atiixp tun ehci_hcd ide_core usbcore kvm_amd kvm it87 hwmon_vid hwmon loop fuse powernow_k8 processor ext3 jbd mbcache sd_mod ahci libata
