配备 4GB RAM 的联想 Thinkpad T61 上运行着 Ubuntu 16.04。
自从从 14.04 升级以来，Ubuntu 启动需要 5 分钟以上。从 dmesg 中，我发现下面两个部分耗时最多。但我不知道该怎么办。有人可以分享一些见解吗？非常感谢。
[ 27.002297] audit: type=1400 audit(1483808627.513:11): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/evince-previewer" pid=9 35 comm="apparmor_parser"
[ 102.305230] **cgroup: new mount options do not match the existing superblock, will be ignored**
[ 152.080602] Bluetooth: RFCOMM ver 1.11
[ 237.887583] wls3: authenticate with ec:aa:a0:a2:88:38
zhoub@erdbeer:~$ systemd-analyze
Startup finished in 6.430s (kernel) + 3min 3.345s (userspace) = 3min 9.775s
zhoub@erdbeer:~$ systemd-analyze blame | head -n 20
40.804s docker.service
18.212s winbind.service
18.171s nmbd.service
17.509s samba-ad-dc.service
10.116s ModemManager.service
9.270s dev-sda5.device
9.216s NetworkManager-wait-online.service
8.978s dev-sda8.device
6.893s NetworkManager.service
6.049s accounts-daemon.service
4.595s gpu-manager.service
4.026s thermald.service
3.915s vboxdrv.service
3.328s apparmor.service
3.282s systemd-fsck@dev-disk-by\x2duuid-7a44ebaa\x2d3c90\x2d4dc0\x2db73d\x2df4514bf902cb.service
3.165s colord.service
2.809s lightdm.service
2.516s lvm2-monitor.service
2.374s console-kit-log-system-start.service
2.262s systemd-fsck@dev-disk-by\x2duuid-b1e33271\x2d0169\x2d4110\x2d915c\x2d1a5494277e1b.service