Ubuntu – Ubuntu 17.04 slow boot on SSD with dual boot

bootdual-bootswap

I have Windows 10 and Ubuntu 17.04 on dual boot (120Gb SSD, 100 for windows and the rest for Linux).
When I installed Ubuntu in the second partition, I did not create any swap partition (I have 4Gb of ram and most forums said that with 4Gb+ you do not need swap), so I just created a root partition / with all the 20gb available and selected to encrypt my Home folder only.

The thing is that it's taking 1-2min to boot Ubuntu, while windows boots up in around 10 seconds or less.

I saw some posts here about this issue but most of the cases the OP had the swap partition created, and this is not my case.

What can I do? Install it again and create a swap partition this time or do I take another approach? I'm not tech savvy regarding Ubuntu, so I'd appreciate if you guys show me some steps do identify the issue, thanks!

EDIT #1

My Windows 10 is not set with fastboot because I can access all files/folders of Windows partition inside Linux.

EDIT #2

Output from sudo fdisk -l :

Disk /dev/loop0: 80,5 MiB, 84393984 bytes, 164832 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop1: 76 MiB, 79683584 bytes, 155632 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/sda: 111,8 GiB, 120034123776 bytes, 234441648 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x39380a4e

Device     Boot     Start       End   Sectors  Size Id Type
/dev/sda1  *         2048   1026047   1024000  500M  7 HPFS/NTFS/exFAT
/dev/sda2         1026048 193478655 192452608 91,8G  7 HPFS/NTFS/exFAT
/dev/sda3       193480702 234440703  40960002 19,5G  5 Extended
/dev/sda5       193480704 234440703  40960000 19,5G 83 Linux

Disk /dev/sdb: 931,5 GiB, 1000204138496 bytes, 1953523708 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x2de2a99a

Device     Boot Start        End    Sectors   Size Id Type
/dev/sdb1        2048 1953519615 1953517568 931,5G  7 HPFS/NTFS/exFAT

Output from systemd-analyze :

Startup finished in 5.074s (kernel) + 3min 514ms (userspace) = 3min 5.588s

Output from systemd-analyze blame :

7.518s NetworkManager-wait-online.service
3.920s fwupd.service
3.015s iio-sensor-proxy.service
1.217s dev-sda5.device
739ms apt-daily.service

EDIT #3:

Output from systemd-analyze critical-chain :

graphical.target @1min 38.007s
└─multi-user.target @1min 38.007s
  └─virtualbox.service @1min 37.938s +68ms
    └─network-online.target @1min 37.937s
      └─NetworkManager-wait-online.service @1min 30.418s +7.518s
        └─NetworkManager.service @1min 30.306s +105ms
          └─dbus.service @1min 30.281s
            └─basic.target @1min 30.273s
              └─sockets.target @1min 30.273s
                └─snapd.socket @1min 30.265s +8ms
                  └─sysinit.target @1min 30.264s
                    └─apparmor.service @193ms +264ms
                      └─local-fs.target @190ms
                        └─media-gdf897g6f9-HD\x20TOURO.mount @1min 50.061s
                          └─dev-sdb1.device @1.467s

EDIT #4:

Here's a image of command systemd-analyze plot > test.svg, a huge gap before sysinit.target, not sure what it means.

http://svgur.com/s/2SA

Best Answer

I could find a fix that a Reddit user posted, it was actually a bug:

In Ubuntu 17.04, there is a bug in the installer when using home folder encryption - a swap partition is referenced but 17.04 now uses a swap file.

Open /etc/crypttab in a text editor and change the following:

cryptswap1 UID=XXXXXXXX

to this:

cryptswap1 /swapfile

Now my Ubuntu boots in like 6 seconds :-)

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