If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.

Linux debian 4.9.0 #2 SMP PREEMPT Sun Dec 18 12:06:33 EET 2016 x86_64 GNU/Linux

GNU C               	4.9.2
GNU Make            	4.0
Binutils            	2.25
Util-linux          	2.25.2
Mount               	2.25.2
Linux C Library     	2.19
Dynamic linker (ldd)	2.19
Procps              	3.3.9
Kbd                 	1.15.5
Console-tools       	1.15.5
Sh-utils            	8.23
Udev                	230
Modules Loaded      	acpi_cpufreq af_packet ahci auth_rpcgss autofs4 backlight binfmt_misc button cdrom cfbcopyarea cfbfillrect cfbimgblt crc16 dm_mod dns_resolver drm drm_kms_helper ehci_hcd ehci_pci evdev ext4 f71882fg fam15h_power fb_sys_fops fuse grace hid hid_logitech i2c_algo_bit i2c_core i2c_piix4 jbd2 k10temp libahci libata lockd loop mbcache md_mod mii nfs nfs_acl nfsd nfsv3 nfsv4 ohci_hcd ohci_pci oid_registry processor r8169 radeon raid1 scsi_mod sd_mod snd snd_hda_codec snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_core snd_hda_intel snd_pcm snd_timer soundcore sr_mod sunrpc syscopyarea sysfillrect sysimgblt ttm usb_common usbcore usbhid xhci_hcd xhci_pci