Depois de atualizar para o 16.04, o tempo de inicialização aumentou.
O sistema choca por cerca de 80 segundos com a mensagem:
A start job is running for dev-mapper-sysvg\x2dlvhome.device"
Aqui estão algumas informações:
$ systemd-analyze
Startup finished in 5.257s (kernel) + 2min 3.377s (userspace) = 2min 8.635s
$ systemd-analyze blame
10.868s vboxadd.service
8.220s ModemManager.service
7.230s NetworkManager-wait-online.service
6.476s accounts-daemon.service
5.223s vboxadd-x11.service
5.194s mdadm.service
5.005s networking.service
4.991s dev-sda1.device
4.953s NetworkManager.service
4.836s apport.service
4.260s lightdm.service
3.939s speech-dispatcher.service
3.610s thermald.service
3.575s virtualbox-guest-utils.service
3.406s gpu-manager.service
2.601s postfix.service
2.425s rsyslog.service
2.418s polkitd.service
2.116s loadcpufreq.service
2.098s lvm2-monitor.service
2.036s ssh.service
1.888s avahi-daemon.service
1.758s grub-common.service
1.486s colord.service
1.379s systemd-logind.service
1.352s irqbalance.service
1.299s run-rpc_pipefs.mount
1.266s systemd-journald.service
1.069s systemd-udevd.service
1.001s systemd-modules-load.service
950ms brltty.service
917ms systemd-tmpfiles-setup-dev.service
879ms ondemand.service
855ms kmod-static-nodes.service
761ms console-setup.service
622ms virtualbox.service
602ms dev-mqueue.mount
601ms sys-kernel-debug.mount
567ms dev-hugepages.mount
461ms systemd-user-sessions.service
411ms systemd-sysctl.service
328ms [email protected]
312ms systemd-tmpfiles-setup.service
255ms upower.service
253ms dns-clean.service
246ms systemd-journal-flush.service
220ms ntp.service
217ms plymouth-read-write.service
e aqui está o gráfico: dado por systemd-analyze plot
gráfico do tempo de inicialização
Como podemos ver, alguns serviços que estão inicializando o disco rígido estão demorando.
Eu tenho um lvm, aqui está a configuração:
$ sudo lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
lvhome sysvg -wi-ao---- 180,00g
lvroot sysvg owi-a-s--- 20,00g
lvswap sysvg -wi-a----- 8,00g
snap-2017-05-09 sysvg swi-a-s--- 20,00g lvroot 56,68
$ sudo pvs
PV VG Fmt Attr PSize PFree
/dev/sdb7 sysvg lvm2 a-- 234,55g 6,55g
$ sudo vgs
VG #PV #LV #SN Attr VSize VFree
sysvg 1 4 1 wz--n- 234,55g 6,55g
Editar 1: removi meu disco rígido com um lvm e o tempo de inicialização cai para ~ 30 s:
systemd-analyze
Startup finished in 5.299s (kernel) + 26.234s (userspace) = 31.534s
Systemd-analyze blame
9.541s vboxadd.service
6.516s NetworkManager-wait-online.service
6.321s networking.service
5.366s dev-sda1.device
5.318s NetworkManager.service
4.937s ModemManager.service
4.741s apport.service
4.709s mdadm.service
4.545s thermald.service
4.316s vboxadd-x11.service
4.025s speech-dispatcher.service
3.307s accounts-daemon.service
3.162s gpu-manager.service
2.960s rsyslog.service
2.775s virtualbox-guest-utils.service
Eu adiciono de volta meu disco rígido com lvm e, como sugerido por @ user535733, removi vboxadd.service , ModemManager.service , accounts-daemon.service , vboxadd-x11.service e o tempo de inicialização ainda é ~ 2min8.
