I just installed Ubuntu 16.04.1 on a 256 GB Samsung SSD. I noticed a very slow boot process, specially if compared with my other OS (Ubuntu 12.04) installed in a separate SSD.

Startup finished in 4.829s (kernel) + 34.163s (userspace) = 38.992s

Any idea why?

My system is Acer Aspire 7750G, CPU Intel Core i5 2410M 2.3Ghz, Ram 8 GB, SSD 256 GB Samsung, AMD Radeon HD 6650M 1 GB VRAM.

Once logged in, the system is quite fast.

  • 1st boot after a system update is noticeably slower then normal ... are you seeing this slowness after another boot up ? – Scott Stensland Jan 16 '17 at 23:51
  • Are your disk partitions aligned? Use sudo fdisk -l for a quick check, and sudo parted align-check for a more accurate check. Do you have the latest firmware in the Samsung SSD? – heynnema Jan 17 '17 at 2:04
  • I reboot many times: once after the installation, then after some updates, then again... And today I got the same boot time. The output of sudo fdisk -l is too long (more than 3.000 char). How can I attach a log file ? – user59114 Jan 17 '17 at 18:45
  • Here you can find the sudo fdisk -l output: pastebin.com/kMrdLZHy – user59114 Jan 17 '17 at 18:53
  • fdisk doesn't show any partition alignment problem. Always start new comments directed to me with @heynnema or I may miss them. Did you intentionally format your SSD with MBR instead of GPT? – heynnema Jan 18 '17 at 6:49

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