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po.pe
Asked: 2018-07-20 23:41:16 +0800 CST

Xubuntu User Space boot takes very long

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I found similar topics regarding slow kernel boot but my problem is that my system takes 3 minutes to load the userspace

systemd-analyze gives the following output

Startup finished in 4.247s (kernel) + 3min 743ms (userspace = 3min 4.991s
graphical.target reacher after 1min 35.812s in userspace

Is there a way to identify what exactly is taking so much time? I'm running Xubuntu 18.04 in a VirtualBox and I think the problem started after I enlarged my partition (including a recreation of the swap partition).

edit: Output of the systemd-analyze critical-chain

graphical.target @1min 35.812s
└─multi-user.target @1min 35.812s
  └─docker.service @1min 32.815s +2.996s
    └─network-online.target @1min 32.814s
      └─NetworkManager-wait-online.service @1min 31.863s +951ms
        └─NetworkManager.service @1min 31.075s +784ms
          └─dbus.service @1min 30.640s
            └─basic.target @1min 30.529s
              └─sockets.target @1min 30.529s
                └─docker.socket @1min 30.498s +30ms
                  └─sysinit.target @1min 30.493s
                    └─apparmor.service @979ms +695ms
                      └─local-fs.target @947ms
                        └─media-aj-VBox_GAs_5.2.81.mount @1min 39.649s
                          └─clean-mount-point@media-aj-VBox_GAs_5.2.81.service @
                            └─system-clean\x2dmount\x2dpoint.slice @1min 39.668s
                              └─system.slice @272ms
                                └─-.slice @266ms
virtualbox boot performance xubuntu user-space

1 Answers

  1. Best Answer

    What finally resolved my issue was updating the UUID of my swap partition in the /etc/fstab according to the information from Slow boot - "a start job is running for dev-disk-by..."

    As I resized my primary partition I had to move my swap partion as well, seems like the system would create a new UUID but not update it in the fstab file. I'm back at a few seconds of booting time.

    The answer from Alexander helped me to get the bootup messages guiding me in the right direction.

    • 2