My computer used to boot up in about 8 seconds with UM 16.04 and it would shut down in 1-2 seconds.
It was blazing fast, but for the past 2 days it's been taking about 60 seconds to boot up or down. This is extremely odd.
Does anyone know what is going on or how I can fix this? It's really embarrassing trying to show people how cool Linux is when my own $1,000 linux machine takes forever to Startup. Lol!
Hi Justin,
all I can say is keep updating and hopefully all the bugs will be gone soon!. 
Systemd currently has a bug causing shutdown and boot to go 90 seconds before timing out. I am having time out problems with both shutdown and startup, others have just one.
So I changed the default start/stop timeout value from 90 seconds to 10S and I am happy with that until a real fix comes out, another user changed it to 6 seconds.
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1457400/comments/12
Thanks for the info!
It’s kinda weird because I was able to edit the “DefaultTimeoutStartSec=
DefaultTimeoutStopSec=” values but the “TimeoutSec=” value was non existent .Very peculiar… must be the important one because the workaround didn’t work 
I’ve had systemd Shutdown on non-Ubuntu systems in less than three seconds (no SSD). It should be faster, this must be a bug.
I do not have that one either, only the start/stop was needed. Those two lines should read:
DefaultTimeoutStartSec=10S
DefaultTimeoutStopSec=10S
Oh thank you I didn’t put the S’s. Problem solved you rock.
Okay this still doesn’t work for me. Not sure what’s wrong. Any other kind of work arounds?
Try to see witch service is cousing the slow boot time by systemd-analyze blame .
I'm still kind of a newb so I don't quite know what that means, but I ran systemd-analyze blame and the output is really long but doesn't really help me lol
Hi Justin,
try running “dpkg” per the update guide (a network cable connection is required!) and it may/may not solve the issue you are having!:
I searched for this startup problems . I found an interesting solution . Do not know if it work for you . If your pc is in warrenty you will void it . Trie to remove your RAMs and plug them in to see if it has a change in systemd-analyze blame . Link to the topic here .
Thanks everyone for the suggestions… I’m getting extremely irritated by this. I’m trying to convert multiple people to linux right now and it doesn’t help my case when my computer is taking an incredibly long time to restart. It literally takes 4 minutes to reboot when it used to take like 8 seconds… doesn’t make linux look very good. Of course I can explain that it’s just a bug with systemd, but that will only be met by blank stares and head nods.
I’ve edited the default timeout values, updated 8,000 times, and I don’t feel comfortable taking my RAM out right now as I’m on vacation in Minnesota.
Sorry for the rant guys but this is just a pointless issue that shouldn’t exist and I can’t fix it. face palm
Hi
Did you try adding the TimeoutSec= value in the end?
I know it’s not in the default file but I’ve added it without breaking anything.
Cheers
Edit: oh and I’ve used lower case “s” for the “Seconds” suffix, no idea if that matters.
Hi @Justin,
I had to re-install completely on 2 PC’s due to multiple problems, once everything was re-installed, the problems went away!, just a suggestion!. (Happy holidays (vacation) btw! )
Thanks man. I’m still having issues and I’m on vacation so It’s not very simple for me to do a fresh install right now. has anyone else figured anything out for this???
That is realy strange man . Not yet started . Some service can’t be started and hangs the system . Trie to disable the topmost 3 services with systemctl disable (nameofservice) . To see if it loads faster . If not trie to systemd-analyze verify
It’s really weird because when I use systemd-analyze the output says that it took 3min 6sec for startup which is correct because it’s PAINFULLY slow, but when I use the blame argument there are no lagging processes. I’m pulling my hair out here. I wish I was at home so I could just do a fresh install and be done with it.
Edit: Wait, I just noticed that Lines 1-23…skipping… Won’t let me click on it though.
justin@Cthulhu:~$ systemd-analyze
Startup finished in 6.433s (kernel) + 3min 538ms (userspace) = 3min 6.972s
justin@Cthulhu:~$ systemd-analyze blame
2.124s apt-daily.service
515ms NetworkManager-wait-online.service
379ms dev-sda2.device
201ms ModemManager.service
170ms gpu-manager.service
165ms accounts-daemon.service
148ms libvirt-bin.service
138ms apparmor.service
133ms systemd-logind.service
123ms grub-common.service
118ms apport.service
115ms NetworkManager.service
111ms ebtables.service
107ms irqbalance.service
104ms ondemand.service
96ms speech-dispatcher.service
95ms ufw.service
87ms lightdm.service
86ms upower.service
85ms qemu-kvm.service
81ms systemd-udev-trigger.service
81ms alsa-restore.service
64ms binfmt-support.service
lines 1-23...skipping...
2.124s apt-daily.service
2.124s apt-daily.service
2.124s apt-daily.service
515ms NetworkManager-wait-online.service
379ms dev-sda2.device
201ms ModemManager.service
170ms gpu-manager.service
165ms accounts-daemon.service
148ms libvirt-bin.service
138ms apparmor.service
133ms systemd-logind.service
123ms grub-common.service
118ms apport.service
115ms NetworkManager.service
111ms ebtables.service
107ms irqbalance.service
104ms ondemand.service
96ms speech-dispatcher.service
95ms ufw.service
87ms lightdm.service
2.124s apt-daily.service
2.124s apt-daily.service
515ms NetworkManager-wait-online.service
379ms dev-sda2.device
201ms ModemManager.service
2.124s apt-daily.service
515ms NetworkManager-wait-online.service
379ms dev-sda2.device
201ms ModemManager.service
170ms gpu-manager.service
165ms accounts-daemon.service
148ms libvirt-bin.service
138ms apparmor.service
133ms systemd-logind.service
123ms grub-common.service
118ms apport.service
115ms NetworkManager.service
111ms ebtables.service
107ms irqbalance.service
104ms ondemand.service
96ms speech-dispatcher.service
95ms ufw.service
87ms lightdm.service
86ms upower.service
85ms qemu-kvm.service
81ms systemd-udev-trigger.service
81ms alsa-restore.service
64ms binfmt-support.service
52ms console-setup.service
46ms ntp.service
45ms rsyslog.service
44ms systemd-journal-flush.service
40ms boot.mount
38ms avahi-daemon.service
37ms networking.service
37ms systemd-rfkill.service
36ms udisks2.service
35ms systemd-journald.service
33ms wpa_supplicant.service
32ms systemd-modules-load.service
30ms bluetooth.service
30ms systemd-fsck@dev-disk-by\x2duuid-f7265437\x2d7235\x2d4a75\x2d88ae\x2de99c3c304d9d.service
29ms systemd-user-sessions.service
28ms snap-ubuntu\x2dcore-109.mount
21ms plymouth-start.service
17ms polkitd.service
17ms hddtemp.service
16ms home.mount
15ms [email protected]
14ms systemd-udevd.service
11ms systemd-tmpfiles-setup.service
11ms plymouth-read-write.service
11ms systemd-fsck@dev-disk-by\x2duuid-bb329b49\x2d4a19\x2d494f\x2d8235\x2d65597cf42540.service
11ms libvirt-guests.service
10ms resolvconf.service
8ms sys-kernel-debug.mount
8ms systemd-remount-fs.service
8ms dev-mqueue.mount
7ms pppd-dns.service
7ms rc-local.service
6ms systemd-update-utmp.service
6ms dev-hugepages.mount
6ms systemd-random-seed.service
6ms proc-sys-fs-binfmt_misc.mount
5ms kmod-static-nodes.service
5ms systemd-backlight@backlight:intel_backlight.service
5ms systemd-update-utmp-runlevel.service
4ms rtkit-daemon.service
4ms systemd-tmpfiles-setup-dev.service
4ms ureadahead-stop.service
3ms sys-fs-fuse-connections.mount
3ms systemd-sysctl.service
1ms dev-loop0.device
1ms plymouth-quit-wait.service
780us snapd.socketTry running the following commands?:
sudo apt-get --fix-missing install
The above command downloads and installs any missing packages on your system.
sudo apt-get --fix-broken install
The above command downloads and installs any broken dependencies on your system.
Restart if anything updates!. 