What do you get if you do ps -xauf
?
Redis-server shouldn't be able to launch now that you've run those earlier commands. The foresting from that ps command should show what redis's parent processes are.
this is what I get
pi@raspberrypi:~ $ ps -xauf
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 2 0.0 0.0 0 0 ? S 22:00 0:00 [kthreadd]
root 3 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [rcu_gp]
root 4 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [rcu_par_gp
root 5 0.0 0.0 0 0 ? I 22:00 0:00 \_ [kworker/0:
root 6 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [kworker/0:
root 7 0.0 0.0 0 0 ? I 22:00 0:00 \_ [kworker/u8
root 8 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [mm_percpu_
root 9 0.0 0.0 0 0 ? S 22:00 0:00 \_ [rcu_tasks_
root 10 0.0 0.0 0 0 ? S 22:00 0:00 \_ [rcu_tasks_
root 11 0.2 0.0 0 0 ? S 22:00 0:00 \_ [ksoftirqd/
root 12 0.2 0.0 0 0 ? I 22:00 0:00 \_ [rcu_sched]
root 13 0.0 0.0 0 0 ? S 22:00 0:00 \_ [migration/
root 14 0.0 0.0 0 0 ? S 22:00 0:00 \_ [cpuhp/0]
root 15 0.0 0.0 0 0 ? S 22:00 0:00 \_ [cpuhp/1]
root 16 0.0 0.0 0 0 ? S 22:00 0:00 \_ [migration/
root 17 0.2 0.0 0 0 ? S 22:00 0:00 \_ [ksoftirqd/
root 18 0.2 0.0 0 0 ? I 22:00 0:00 \_ [kworker/1:
root 19 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [kworker/1:
root 20 0.0 0.0 0 0 ? S 22:00 0:00 \_ [cpuhp/2]
root 21 0.0 0.0 0 0 ? S 22:00 0:00 \_ [migration/
root 22 0.1 0.0 0 0 ? S 22:00 0:00 \_ [ksoftirqd/
root 23 0.0 0.0 0 0 ? I 22:00 0:00 \_ [kworker/2:
root 24 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [kworker/2:
root 25 0.0 0.0 0 0 ? S 22:00 0:00 \_ [cpuhp/3]
root 26 0.0 0.0 0 0 ? S 22:00 0:00 \_ [migration/
root 27 0.1 0.0 0 0 ? S 22:00 0:00 \_ [ksoftirqd/
root 28 0.0 0.0 0 0 ? I 22:00 0:00 \_ [kworker/3:
root 29 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [kworker/3:
root 30 0.0 0.0 0 0 ? S 22:00 0:00 \_ [kdevtmpfs]
root 31 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [netns]
root 32 0.4 0.0 0 0 ? I 22:00 0:00 \_ [kworker/0:
root 33 0.0 0.0 0 0 ? I 22:00 0:00 \_ [kworker/1:
root 34 0.1 0.0 0 0 ? I 22:00 0:00 \_ [kworker/2:
root 35 0.0 0.0 0 0 ? S 22:00 0:00 \_ [kauditd]
root 36 0.0 0.0 0 0 ? S 22:00 0:00 \_ [khungtaskd
root 37 0.0 0.0 0 0 ? S 22:00 0:00 \_ [oom_reaper
root 38 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [writeback]
root 39 0.0 0.0 0 0 ? S 22:00 0:00 \_ [kcompactd0
root 57 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [kblockd]
root 58 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [blkcg_punt
root 59 0.0 0.0 0 0 ? S 22:00 0:00 \_ [watchdogd]
root 60 0.1 0.0 0 0 ? I 22:00 0:00 \_ [kworker/3:
root 61 0.2 0.0 0 0 ? I< 22:00 0:00 \_ [kworker/3:
root 62 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [rpciod]
root 63 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [kworker/u9
root 64 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [xprtiod]
root 65 0.3 0.0 0 0 ? S 22:00 0:00 \_ [kswapd0]
root 66 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [nfsiod]
root 67 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [iscsi_eh]
root 68 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [iscsi_dest
root 69 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [dwc_otg]
root 70 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [DWC Notifi
root 71 0.2 0.0 0 0 ? I 22:00 0:00 \_ [kworker/1:
root 72 0.0 0.0 0 0 ? S< 22:00 0:00 \_ [vchiq-slot
root 73 0.0 0.0 0 0 ? S< 22:00 0:00 \_ [vchiq-recy
root 74 0.0 0.0 0 0 ? S< 22:00 0:00 \_ [vchiq-sync
root 75 0.0 0.0 0 0 ? I< 22:00 0:00 \_ [zswap-shri
root 76 0.4 0.0 0 0 ? I 22:01 0:00 \_ [kworker/1:
root 77 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [mmc_comple
root 78 0.4 0.0 0 0 ? I< 22:01 0:00 \_ [kworker/1:
root 79 0.3 0.0 0 0 ? I< 22:01 0:00 \_ [kworker/0:
root 80 0.0 0.0 0 0 ? S 22:01 0:00 \_ [jbd2/mmcbl
root 81 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [ext4-rsv-c
root 82 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [kworker/0:
root 83 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [ipv6_addrc
root 84 0.1 0.0 0 0 ? I 22:01 0:00 \_ [kworker/0:
root 85 0.1 0.0 0 0 ? I 22:01 0:00 \_ [kworker/u8
root 87 0.4 0.0 0 0 ? I< 22:01 0:00 \_ [kworker/2:
root 102 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [kworker/2:
root 103 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [kworker/3:
root 108 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [kworker/1:
root 124 0.0 0.0 0 0 ? I 22:01 0:00 \_ [kworker/3:
root 140 0.0 0.0 0 0 ? I 22:01 0:00 \_ [kworker/u8
root 164 0.0 0.0 0 0 ? I 22:01 0:00 \_ [kworker/2:
root 167 0.0 0.0 0 0 ? S 22:01 0:00 \_ [vchiq-keep
root 171 0.0 0.0 0 0 ? S< 22:01 0:00 \_ [SMIO]
root 188 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [mmal-vchiq
root 189 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [mmal-vchiq
root 193 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [mmal-vchiq
root 195 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [mmal-vchiq
root 246 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [cfg80211]
root 253 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [brcmf_wq/m
root 254 0.0 0.0 0 0 ? S 22:01 0:00 \_ [brcmf_wdog
root 261 0.0 0.0 0 0 ? I 22:01 0:00 \_ [kworker/0:
root 284 0.0 0.0 0 0 ? I 22:01 0:00 \_ [kworker/1:
root 541 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [kworker/u9
root 543 0.0 0.0 0 0 ? I< 22:01 0:00 \_ [kworker/u9
root 570 0.0 0.0 0 0 ? S< 22:01 0:00 \_ [krfcommd]
root 1454 0.0 0.0 0 0 ? I 22:01 0:00 \_ [kworker/1:
root 1455 0.0 0.0 0 0 ? I 22:01 0:00 \_ [kworker/1:
root 1456 0.0 0.0 0 0 ? I 22:01 0:00 \_ [kworker/1:
root 1457 0.0 0.0 0 0 ? I 22:01 0:00 \_ [kworker/1:
root 1458 0.0 0.0 0 0 ? I 22:01 0:00 \_ [kworker/1:
root 1459 0.0 0.0 0 0 ? I 22:01 0:00 \_ [kworker/1:
root 1460 0.2 0.0 0 0 ? I 22:01 0:00 \_ [kworker/1:
root 1461 0.0 0.0 0 0 ? I 22:01 0:00 \_ [kworker/1:
root 1462 0.0 0.0 0 0 ? I 22:01 0:00 \_ [kworker/1:
root 1723 0.0 0.0 0 0 ? I 22:02 0:00 \_ [kworker/2:
root 2030 0.0 0.0 0 0 ? I 22:02 0:00 \_ [kworker/0:
root 2031 0.0 0.0 0 0 ? I 22:02 0:00 \_ [kworker/0:
root 2032 0.0 0.0 0 0 ? I 22:02 0:00 \_ [kworker/0:
root 2033 0.0 0.0 0 0 ? I 22:02 0:00 \_ [kworker/0:
root 2034 0.0 0.0 0 0 ? I 22:02 0:00 \_ [kworker/0:
root 2035 0.1 0.0 0 0 ? I 22:02 0:00 \_ [kworker/0:
root 2036 0.0 0.0 0 0 ? I 22:02 0:00 \_ [kworker/0:
root 2037 0.0 0.0 0 0 ? I 22:02 0:00 \_ [kworker/0:
root 1 5.7 0.8 33852 8136 ? Ss 22:00 0:07 /sbin/init spla
root 112 0.8 0.7 33232 7072 ? Ss 22:01 0:01 /lib/systemd/sy
root 147 0.9 0.4 18536 4168 ? Ss 22:01 0:01 /lib/systemd/sy
systemd+ 319 0.3 0.5 22416 5412 ? Ssl 22:01 0:00 /lib/systemd/sy
root 356 0.1 0.3 25512 3028 ? Ssl 22:01 0:00 /usr/sbin/rsysl
nobody 360 0.0 0.2 4320 2020 ? Ss 22:01 0:00 /usr/sbin/thd -
root 364 0.2 0.6 13044 5892 ? Ss 22:01 0:00 /lib/systemd/sy
root 369 0.0 0.2 7948 2228 ? Ss 22:01 0:00 /usr/sbin/cron
message+ 373 0.6 0.3 6808 3780 ? Ss 22:01 0:00 /usr/bin/dbus-d
root 378 0.0 0.3 10744 3724 ? Ss 22:01 0:00 /sbin/wpa_suppl
avahi 382 0.1 0.3 5768 2940 ? Ss 22:01 0:00 avahi-daemon: r
avahi 422 0.0 0.0 5768 220 ? S 22:01 0:00 \_ avahi-daemo
root 384 0.5 0.9 63212 9128 ? Ssl 22:01 0:00 /usr/lib/udisks
root 395 0.0 0.0 3692 752 ? SNs 22:01 0:00 /usr/sbin/alsac
root 400 0.2 0.8 54648 7912 ? Ssl 22:01 0:00 /usr/sbin/Modem
root 408 0.0 0.0 27656 72 ? SLsl 22:01 0:00 /usr/sbin/rngd
root 440 0.0 0.1 2904 1680 ? Ss 22:01 0:00 /sbin/dhcpcd -q
root 474 0.1 0.6 37964 5776 ? Ssl 22:01 0:00 /usr/lib/policy
root 480 0.4 1.6 38720 15784 ? Ssl 22:01 0:00 /usr/bin/python
root 491 0.1 0.6 37504 5816 ? Ssl 22:01 0:00 /usr/sbin/light
root 513 2.4 5.3 235496 50764 tty7 Ssl+ 22:01 0:02 \_ /usr/lib/xo
root 681 0.0 0.6 29908 6184 ? Sl 22:01 0:00 \_ lightdm --s
pi 691 0.2 1.2 54460 11776 ? Ssl 22:01 0:00 \_ /usr/bi
pi 735 0.0 0.0 4520 288 ? Ss 22:01 0:00 \_ /us
pi 760 0.4 1.5 62608 14680 ? S 22:01 0:00 \_ ope
pi 769 0.0 1.1 47136 11016 ? Sl 22:01 0:00 \_ lxp
pi 770 2.2 2.9 148996 28176 ? Sl 22:01 0:02 \_ lxp
pi 2317 9.3 5.0 235384 47380 ? Sl 22:02 0:01 | lxt
pi 2347 1.0 0.3 8516 3592 pts/0 Ss 22:02 0:00 | bas
pi 2444 0.0 0.2 9944 2644 pts/0 R+ 22:03 0:00 | ps
pi 2318 9.7 4.9 235240 47184 ? Sl 22:02 0:01 | lxt
pi 2346 1.0 0.3 8516 3536 pts/1 Ss+ 22:02 0:00 | bas
pi 771 1.5 2.5 104584 24508 ? Sl 22:01 0:01 \_ pcm
root 495 1.6 3.9 963904 37044 ? Ssl 22:01 0:01 /usr/bin/contai
root 503 0.0 0.4 11004 3792 ? Ss 22:01 0:00 wpa_supplicant
root 514 0.0 0.2 5620 2464 tty1 Ss 22:01 0:00 /bin/login -f
pi 662 0.2 0.3 8492 3624 tty1 S+ 22:01 0:00 \_ -bash
root 526 26.8 1.2 186124 11740 ? Sl 22:01 0:30 /opt/teamviewer
root 542 0.0 0.0 2140 48 ? S 22:01 0:00 /usr/bin/hciatt
root 554 0.0 0.4 9808 4396 ? Ss 22:01 0:00 /usr/lib/blueto
root 557 0.0 0.1 50232 1264 ? Ss 22:01 0:00 nginx: master p
www-data 559 0.0 0.2 50392 2668 ? S 22:01 0:00 \_ nginx: work
www-data 560 0.0 0.2 50392 2668 ? S 22:01 0:00 \_ nginx: work
www-data 561 0.0 0.2 50392 2668 ? S 22:01 0:00 \_ nginx: work
www-data 562 0.0 0.2 50392 2668 ? S 22:01 0:00 \_ nginx: work
root 558 0.0 0.4 26708 4112 ? Ssl 22:01 0:00 /usr/bin/blueal
root 577 3.6 7.2 1019432 68860 ? Ssl 22:01 0:04 /usr/bin/docker
pi 583 1.1 0.7 14848 7412 ? Ss 22:01 0:01 /lib/systemd/sy
pi 584 0.0 0.1 16748 1660 ? S 22:01 0:00 \_ (sd-pam)
pi 699 0.1 0.3 6544 3532 ? Ss 22:01 0:00 \_ /usr/bin/db
pi 744 2.1 8.2 396968 77864 ? Sl 22:01 0:02 \_ /opt/teamvi
pi 747 0.0 0.6 43412 6184 ? Ssl 22:01 0:00 \_ /usr/lib/gv
pi 886 0.3 0.6 52984 6412 ? Sl 22:01 0:00 | \_ /usr/li
pi 752 0.0 0.5 54512 5216 ? Sl 22:01 0:00 \_ /usr/lib/gv
pi 816 1.4 1.0 79348 9952 ? Ssl 22:01 0:01 \_ /usr/lib/gv
pi 826 0.0 0.4 40104 4360 ? Ssl 22:01 0:00 \_ /usr/lib/gv
pi 830 0.0 0.7 56028 6860 ? Ssl 22:01 0:00 \_ /usr/lib/gv
pi 836 0.0 0.5 41696 4988 ? Ssl 22:01 0:00 \_ /usr/lib/gv
pi 842 0.0 0.4 40128 4648 ? Ssl 22:01 0:00 \_ /usr/lib/gv
ferment+ 676 2.5 1.7 46800 16392 ? Sl 22:01 0:02 /home/fermentra
ferment+ 702 3.6 3.7 46768 35184 ? Ss 22:01 0:03 \_ /home/ferme
ferment+ 708 3.4 3.7 46768 35172 ? Ss 22:01 0:03 \_ /home/ferme
ferment+ 709 5.8 5.1 83728 49188 ? Ssl 22:01 0:06 \_ /home/ferme
ferment+ 710 3.6 3.8 64348 36796 ? Ssl 22:01 0:03 \_ /home/ferme
ferment+ 712 6.3 2.0 46444 19092 ? Ssl 22:01 0:06 \_ /home/ferme
ferment+ 1122 4.6 4.1 58884 38876 ? Ssl 22:01 0:03 \_ python -um
ferment+ 2369 56.3 3.8 75068 36464 ? Ssl 22:03 0:03 \_ python -um
pi 778 0.0 0.0 4520 288 ? Ss 22:01 0:00 /usr/bin/ssh-ag
pi 785 0.0 0.4 40452 4616 ? Sl 22:01 0:00 /usr/lib/geoclu
pi 863 0.0 0.5 26444 5176 ? Sl 22:01 0:00 /usr/lib/menu-c
root 1147 0.0 0.6 802816 5904 ? Sl 22:01 0:00 /usr/bin/contai
999 1228 0.6 0.5 48300 5260 ? Ssl 22:01 0:00 \_ redis-serve
root 1154 0.0 0.7 802816 6768 ? Sl 22:01 0:00 /usr/bin/contai
999 1236 0.4 2.0 199068 19824 ? Ss 22:01 0:00 \_ postgres
999 1637 0.0 0.4 199068 3840 ? Ss 22:01 0:00 \_ postgre
999 1638 0.0 0.4 199068 4560 ? Ss 22:01 0:00 \_ postgre
999 1639 0.0 0.8 199068 7900 ? Ss 22:01 0:00 \_ postgre
999 1640 0.0 0.6 199484 5760 ? Ss 22:01 0:00 \_ postgre
999 1642 0.0 0.3 55928 3540 ? Ss 22:01 0:00 \_ postgre
999 1643 0.0 0.4 199344 4712 ? Ss 22:01 0:00 \_ postgre
root 2397 1.5 0.7 802688 6916 ? Sl 22:03 0:00 /usr/bin/contai
sshd 2422 2.5 0.2 4308 2140 ? Ss 22:03 0:00 \_ /bin/bash /
sshd 2440 63.0 1.6 19204 15240 ? R 22:03 0:01 \_ python
pi@raspberrypi:~ $
I should also add got this issue after I updated my pi because I was installing teamviewer.