After upgrading to Ubuntu 20.04.1 LTS from 18.04, the boot time, which wasn't great, is now even worse and takes typically two and a half minutes. I've stopped the NetworkManager-wait-online
service, but this only makes a small difference. Having read of similar problems with previous versions I'm none the wiser.
systemd-analyze
timings are below:
Startup finished in 39.960s (kernel) + 1min 46.291s (userspace) = 2min 26.252s graphical.target reached after 1min 45.661s in userspace
The main items from systemd-analyze blame
are:
56.025s plymouth-quit-wait.service
27.021s dev-sda1.device
23.838s snapd.service
21.920s networkd-dispatcher.service
20.433s systemd-journal-flush.service
18.533s apport-autoreport.service
17.737s accounts-daemon.service
17.062s dev-loop31.device
systemd-analyze critical-chain
shows:
graphical.target @1min 45.661s
└─multi-user.target @1min 45.660s
**└─snapd.seeded.service @1min 1.081s +663ms**
**└─snapd.service @37.238s +23.838s**
└─basic.target @35.464s
└─sockets.target @35.464s
**└─snapd.socket @35.462s +1ms**
└─sysinit.target @35.392s
└─swap.target @35.391s
**└─dev-mapper-cryptswap1.swap @35.263s +128ms**
└─dev-mapper-cryptswap1.device @35.262s**
Any help is welcome. The computer is a Sony Vaio laptop, bought in 2012, with an Intel i3 processor.