The kernel loads before the service. So disabling services will not speedup
the time to load the kernel.
You can either search the Web or just "systemctl disable" the service and
see.
Standard Trisquel 8 kernel:
$ uname -a
Linux atena 4.4.0-127-generic #153+8.0trisquel2 SMP Tue May 22 10:35:18 UTC
2018 x86_64 x86_64 x86_64 GNU/Linux
No. Send *me* bitcoins:
$ systemd-analyze
Startup finished in 8.298s (kernel) + 1.933s (userspace) = 10.231s
I cheat: SSD powa! :-p
Your objective being to "speedup the boot process", you should focus on the
critical chain (systemd activates units in parallel, if they do not depend on
each other, and your processor is probably multicore and hyperthreaded), as
far as I understand. This command shows it:
$
Systemd starts services in parallel. To graphically see not only the
initialization times but also when every service starts:
$ systemd-analyze plot > systemd.svg
"systemd.svg" can then be opened with Eye of MATE (or any other viewer that
understands SVG).
