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Ubuntu 15.04 is booting very slowly. I tried with dmesg output but couldn't understand which items were problems/issues actually. Here is dmesg output. Someone please help me!

EDIT 1 Here is the systemd-analyze critical-chain output. wpa_supplicant and kerneloops are killing time I guess! Any suggestion?

graphical.target @1min 10.998s
└─multi-user.target @1min 10.997s
  └─kerneloops.service @1min 10.869s +128ms
    └─network-online.target @1min 10.868s
      └─network.target @1min 849ms
        └─wpa_supplicant.service @1min 1.140s +192ms
          └─basic.target @57.119s
            └─sockets.target @57.118s
              └─avahi-daemon.socket @57.118s
                └─sysinit.target @57.109s
                  └─networking.service @56.947s +162ms
                    └─apparmor.service @56.105s +839ms
                      └─local-fs.target @56.104s
                        └─run-cgmanager-fs.mount @57.234s
                          └─local-fs-pre.target @55.259s
                            └─systemd-remount-fs.service @55.211s +35ms
                              └─systemd-fsck-root.service @55.103s +106ms
                                └─systemd-fsckd.socket @1.781s
                                  └─-.slice @1.690s
IFightCode
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  • How new is your installation, which is to say, how long ago did you install it and how many times have you rebooted it since it was installed? – gyropyge Jun 13 '15 at 02:49
  • See other questions for how to ask these questions better on a version 15 system such as yours, complete with the reports generated by systemd-analyze blame and systemd-analyze critical-chain included in the questions: http://askubuntu.com/questions/626115/ http://askubuntu.com/questions/614349/ http://askubuntu.com/questions/623799/ http://askubuntu.com/questions/615006/ http://askubuntu.com/questions/612600/ – JdeBP Jun 13 '15 at 13:09
  • wpa_supplicant and kerneloops are killing time I guess! Any suggestion? – IFightCode Jun 13 '15 at 13:45

2 Answers2

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Okay, now my machine is booting in 30 sec. I just issued the following command:

systemctl mask systemd-udev-settle

I visualize using systemd-analyze plot > plot.svg (output) and found systemd-udev-settle to take a minute. Then masking helped me a lot.

Thank you guys for helping me out.

IFightCode
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Yes, many people have had this same issue before. I'm positive that it is a bug in the current build of Mate. If you don't know much about code, then try another build of Mate. If the boot time is faster, then reply back.

Cocoffee
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