Da quando ho aggiornato Ubuntu all'ultima release Noble Numbat LTS i tempi di avvio del PC variano in modo totalmente casuale, o almeno così mi sembra... il più delle volte il boot avviene in oltre 4 o 5 minuti, a volte in 30 secondi è tutto pronto.
Di seguito l'output in occasione di un boot lento:
Codice: Seleziona tutto
riccardo@riccardo-LIFEBOOK-E558:~$ systemd-analyze
Startup finished in 3.699s (firmware) + 18.159s (loader) + 5.172s (kernel) + 4min 32.851s (userspace) = 4min 59.881s
graphical.target reached after 4min 32.804s in userspace.
riccardo@riccardo-LIFEBOOK-E558:~$ systemd-analyze critical-chain
The time when unit became active or started is printed after the "@" character.
The time the unit took to start is printed after the "+" character.
graphical.target @4min 32.804s
└─multi-user.target @4min 32.804s
└─plymouth-quit-wait.service @2min 27.969s +2min 4.832s
└─systemd-user-sessions.service @2min 27.813s +136ms
└─network.target @2min 27.587s
└─NetworkManager.service @1min 11.864s +1min 15.722s
└─dbus.service @37.419s +34.407s
└─basic.target @37.386s
└─sockets.target @37.386s
└─libvirtd-ro.socket @37.386s
└─libvirtd.socket @37.372s +13ms
└─sysinit.target @37.364s
└─snapd.apparmor.service @33.708s +3.654s
└─apparmor.service @29.656s +4.035s
└─local-fs.target @29.283s
└─run-snapd-ns-snapd\x2ddesktop\x2dintegration.mnt.>
└─run-snapd-ns.mount @2min 29.615s
└─local-fs-pre.target @8.069s
└─systemd-tmpfiles-setup-dev.service @8.053s >
└─systemd-tmpfiles-setup-dev-early.service >
└─kmod-static-nodes.service @6.151s +258ms
└─systemd-journald.socket @6.111s
└─-.mount @6.077s
└─-.slice @6.077s
Codice: Seleziona tutto
riccardo@riccardo-LIFEBOOK-E558:~$ systemd-analyze
Startup finished in 3.397s (firmware) + 4.637s (loader) + 4.335s (kernel) + 12.154s (userspace) = 24.525s
graphical.target reached after 12.128s in userspace.
riccardo@riccardo-LIFEBOOK-E558:~$ systemd-analyze critical-chain
The time when unit became active or started is printed after the "@" character.
The time the unit took to start is printed after the "+" character.
graphical.target @12.128s
└─multi-user.target @12.128s
└─plymouth-quit-wait.service @6.332s +5.793s
└─systemd-user-sessions.service @6.232s +59ms
└─network.target @6.198s
└─NetworkManager.service @3.809s +2.388s
└─dbus.service @3.436s +359ms
└─basic.target @3.416s
└─sockets.target @3.416s
└─libvirtd-ro.socket @3.416s
└─libvirtd.socket @3.407s +8ms
└─sysinit.target @3.401s
└─systemd-backlight@backlight:intel_backlight.service @4.>
└─system-systemd\x2dbacklight.slice @4.533s
└─system.slice @889ms
└─-.slice @889ms
Grazie!
Riccardo
