Keywords: Ubuntu check slow boot, Ubuntu check slow startup, Ubuntu troubleshoot slow boot, Ubuntu check slow startup, systemd, systemd-analyze blame, Kali Linux, boot time, slow boot time, slow startup time Sometimes, Ubuntu startup takes very long time, we want to find out the cause. (Following command is not limited to Ubuntu, it can actually be used on any Linux distributions with systemd installed) When the systems boots up completely, we can use following command to check which process took longest time during boot time. $ sudo systemd-analyze blame We can also use head to see top 10 slowest ones $ sudo systemd-analyze blame | head root@linux:/var/log# sudo systemd-analyze blame | head 55.280s plymouth-quit-wait.service 22.142s snapd.service 22.140s dev-sda6.device 17.104s networkd-dispatcher.service 15.401s dev-loop60.device 15.234s dev-loop64.device 15.221s dev-loop39.device 15.006s udisks2.service 14.995s dev-loop66.device 14.826s dev-loop58.device if you have dual boot with w...