Acabei de atualizar para o 18.04 e, diante de uma inicialização lenta, executei o seguinte:
$ systemd-analyze blame
14.760s dev-sda5.device
13.228s systemd-journal-flush.service
12.607s dev-loop1.device
12.537s dev-loop0.device
12.486s dev-loop2.device
12.453s dev-loop4.device
12.423s dev-loop3.device
12.375s dev-loop6.device
12.344s dev-loop7.device
12.331s dev-loop5.device
12.299s dev-loop8.device
12.279s dev-loop10.device
12.263s dev-loop9.device
12.223s dev-loop11.device
10.228s apparmor.service
9.953s systemd-udevd.service
9.155s NetworkManager-wait-online.service
7.387s plymouth-quit-wait.service
4.037s udisks2.service
4.001s snapd.service
3.950s NetworkManager.service
2.964s plymouth-start.service
2.906s ModemManager.service
2.809s accounts-daemon.service
2.756s grub-common.service
2.045s networkd-dispatcher.service
1.852s avahi-daemon.service
1.791s thermald.service
1.274s wpa_supplicant.service
1.224s keyboard-setup.service
1.082s fwupd.service
e próximo
$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop0 7:0 0 86.6M 1 loop /snap/core/4486
loop1 7:1 0 21M 1 loop /snap/gnome-logs/25
loop2 7:2 0 140M 1 loop /snap/gnome-3-26-1604/59
loop3 7:3 0 162.9M 1 loop /snap/spotify/16
loop4 7:4 0 124.3M 1 loop /snap/thunderbird/3
loop5 7:5 0 1.6M 1 loop /snap/gnome-calculator/154
loop6 7:6 0 3.3M 1 loop /snap/gnome-system-monitor/36
loop7 7:7 0 12.2M 1 loop /snap/gnome-characters/69
loop8 7:8 0 299.9M 1 loop /snap/pycharm-professional/68
loop9 7:9 0 198M 1 loop /snap/vlc/365
loop10 7:10 0 139.4M 1 loop /snap/chromium/343
loop11 7:11 0 4.9M 1 loop /snap/canonical-livepatch/41
loop12 7:12 0 86.6M 1 loop /snap/core/4650
loop13 7:13 0 3.7M 1 loop /snap/gnome-system-monitor/41
loop14 7:14 0 2.3M 1 loop /snap/gnome-calculator/170
loop15 7:15 0 14.5M 1 loop /snap/gnome-logs/34
loop16 7:16 0 13M 1 loop /snap/gnome-characters/96
loop17 7:17 0 139.5M 1 loop /snap/gnome-3-26-1604/64
sda 8:0 0 465.8G 0 disk
├─sda1 8:1 0 248G 0 part /media/foo/4afaaee5-473b-41c9-acd0-506a3566fcf5
├─sda5 8:5 0 201.9G 0 part /
└─sda6 8:6 0 15.9G 0 part [SWAP]
sr0 11:0 1 1024M 0 rom
Parece que meu dispositivo principal leva 14 segundos (não tenho certeza se isso é muito), mas todos esses dispositivos de loop (snaps?) somam muito tempo também. Isso é comportamento normal? Existe alguma outra maneira de reduzir o tempo de inicialização além de desinstalá-los?