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

Linux archlinux 5.7.3-arch1-1 #1 SMP PREEMPT Wed, 17 Jun 2020 19:42:12 +0000 x86_64 GNU/Linux

GNU C               	10.1.0
GNU Make            	4.3
Binutils            	2.34.0
Util-linux          	2.35.2
Mount               	2.35.2
Module-init-tools   	27
E2fsprogs           	1.45.6
Jfsutils            	1.1.15
Reiserfsprogs       	3.6.27
Xfsprogs            	5.6.0
Quota-tools         	4.05
PPP                 	2.4.7
Nfs-utils           	2.4.3
Bison               	3.6.3
Flex                	2.6.4
Linux C++ Library   	6.0.28
Linux C Library     	2.31
Dynamic linker (ldd)	2.31
Procps              	3.3.16
Kbd                 	2.2.0
Console-tools       	2.2.0
Sh-utils            	8.32
Udev                	245
Modules Loaded      	ac ac97_bus aesni_intel agpgart ata_generic ata_piix atkbd bluetooth bnep btbcm btintel btrtl btusb cdrom cec crc16 crc32c_generic crc32c_intel crc32_pclmul crct10dif_pclmul cryptd crypto_simd crypto_user drm drm_kms_helper e1000 ecc ecdh_generic ehci_hcd ehci_pci evdev ext4 fat fb_sys_fops fuse gameport ghash_clmulni_intel glue_helper hid hid_generic i2c_piix4 i8042 inet_diag input_leds intel_agp intel_gtt intel_rapl_common intel_rapl_msr intel_rapl_perf ip_tables jbd2 joydev libps2 mac_hid mbcache mousedev mptbase mptscsih mptspi nls_cp437 nls_iso8859_1 pata_acpi pcspkr psmouse rc_core rfcomm rfkill sch_fq scsi_transport_spi serio serio_raw sg snd snd_ac97_codec snd_ens1371 snd_pcm snd_rawmidi snd_seq_device snd_timer soundcore sr_mod sunrpc syscopyarea sysfillrect sysimgblt tcp_bbr tcp_diag ttm udp_diag uhci_hcd usbhid vfat vmw_balloon vmwgfx vmw_vmci vmw_vsock_virtio_transport_common vmw_vsock_vmci_transport vsock vsock_loopback xhci_hcd xhci_pci x_tables