I've been using Ubuntu for a while, for some reason, though, from some point on, it started to boot very slowly, about 2 minutes. Systemd-analyze output is:
Startup finished in 7.911s (firmware) + 5.078s (loader) + 6.034s (kernel) + 1min 28.681s (userspace) = 1min 47.704s
graphical.target reached after 1min 2.054s in userspace
Systemd-analyze blame is:
1min 2.056s man-db.service
35.463s udisks2.service
25.140s NetworkManager-wait-online.service
16.481s networkd-dispatcher.service
12.920s dev-sda6.device
12.440s accounts-daemon.service
11.782s systemd-journal-flush.service
11.096s logrotate.service
9.849s ModemManager.service
8.955s polkit.service
8.374s snapd.service
8.130s avahi-daemon.service
8.128s bluetooth.service
8.114s NetworkManager.service
8.018s iio-sensor-proxy.service
7.410s switcheroo-control.service
7.400s systemd-logind.service
7.397s thermald.service
6.710s wpa_supplicant.service
6.115s snapd.seeded.service
5.476s [email protected]
5.302s dev-loop3.device
5.249s mnt-84D85686D8567700.mount
4.658s dev-loop8.device
4.651s gdm.service
4.218s dev-loop7.device
3.913s grub-common.service
3.885s dev-loop4.device
3.694s gpu-manager.service
3.506s tlp.service
3.332s dev-loop6.device
3.289s dev-loop5.device
3.222s dev-loop0.device
3.043s dev-loop2.device
3.019s dev-loop1.device
2.916s cpufreqd.service
2.729s loadcpufreq.service
2.674s apt-daily-upgrade.service
2.649s apport.service
2.298s upower.service
2.245s fwupd.service
2.199s apparmor.service
2.109s systemd-fsck@dev-disk-by\x2duuid-DCCD\x2d34F3.service
2.046s preload.service
1.884s secureboot-db.service
1.866s systemd-tmpfiles-setup.service
1.677s lm-sensors.service
1.606s mnt-82B0CEE6B0CEE031.mount
1.586s rsyslog.service
1.458s systemd-resolved.service
1.445s systemd-udevd.service
1.423s e2scrub_reap.service
1.423s fstrim.service
1.265s snap-core-11606.mount
1.163s snap-chromium-1732.mount
1.148s snapd.apparmor.service
1.127s systemd-sysctl.service
1.115s systemd-modules-load.service
1.005s grub-initrd-fallback.service
995ms snap-auto\x2dcpufreq-71.mount
964ms snap-gtk\x2dcommon\x2dthemes-1515.mount
959ms systemd-backlight@backlight:intel_backlight.service
954ms systemd-random-seed.service
929ms snap-core20-1081.mount
929ms kerneloops.service
914ms binfmt-support.service
873ms keyboard-setup.service
872ms [email protected]
845ms setvtrgb.service
797ms snap-gnome\x2d3\x2d28\x2d1804-161.mount
788ms snap-jdownloader2-17.mount
762ms pppd-dns.service
753ms systemd-tmpfiles-setup-dev.service
686ms snap-core18-2128.mount
667ms openvpn.service
642ms systemd-user-sessions.service
618ms systemd-sysusers.service
564ms colord.service
520ms boot-efi.mount
492ms snap-snapd-12883.mount
471ms systemd-udev-trigger.service
443ms hddtemp.service
377ms ufw.service
330ms dev-disk-by\x2duuid-21455d02\x2d8efb\x2d4566\x2d8474\x2d74ed32541dc7.swap
310ms systemd-journald.service
281ms systemd-timesyncd.service
265ms apport-autoreport.service
245ms dev-mqueue.mount
245ms sys-kernel-debug.mount
244ms sys-kernel-tracing.mount
244ms dev-hugepages.mount
238ms kmod-static-nodes.service
237ms [email protected]
225ms systemd-remount-fs.service
187ms console-setup.service
183ms proc-sys-fs-binfmt_misc.mount
166ms [email protected]
156ms systemd-backlight@leds:dell::kbd_backlight.service
109ms systemd-update-utmp.service
87ms snapd.socket
34ms snap-auto\x2dcpufreq-72.mount
27ms snap-snapd-13170.mount
23ms alsa-restore.service
20ms sys-fs-fuse-connections.mount
20ms sys-kernel-config.mount
17ms plymouth-read-write.service
17ms [email protected]
14ms systemd-tmpfiles-clean.service
11ms cpufrequtils.service
9ms systemd-update-utmp-runlevel.service
8ms dev-loop10.device
2ms rtkit-daemon.service
2ms dev-loop9.device
2ms e2scrub_all.service
1ms plymouth-quit-wait.service
289us clean-mount-point@media-j-Seagate\x20Expansion.service
Systemd-analyze critical chain:
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 @1min 2.054s
└─udisks2.service @26.590s +35.463s
└─basic.target @25.113s
└─sockets.target @25.108s
└─snapd.socket @25.011s +87ms
└─sysinit.target @24.746s
└─snapd.apparmor.service @23.595s +1.148s
└─apparmor.service @21.394s +2.199s
└─local-fs.target @21.392s
└─run-user-1000-gvfs.mount @1min 11.515s
└─run-user-1000.mount @58.284s
└─swap.target @19.048s
└─dev-disk-by\x2duuid-21455d02\x2d8efb\x2d4566\x2d8474\x2d74ed32541dc7.s>
└─dev-sda7.device @18.715s
Even so, the slow boot isn't the worst problem. The worst problem is that, after booting, it takes about five minutes to actually be usable. It's laggy, it freezes, it takes ages to open a program, and when it opens, let's say Firefox, it lags, it says 'Firefox is frozen, do you want to wait or force close?' if open two tabs or so. Then the updater, which takes minutes to open, appears, and after a while it starts to function normally and pretty fast. Any ideas? Could it be the updater running? How can I disable it and open it when I want? Thanks.
This is my neofetch:
j@j-Inspiron-17-7779
--------------------
OS: Ubuntu 20.04.3 LTS x86_64
Host: Inspiron 17-7779
Kernel: 5.11.0-27-generic
Uptime: 24 mins
Packages: 2424 (dpkg), 17 (flatpak), 10 (snap)
Shell: bash 5.0.17
Resolution: 1920x1080
DE: GNOME
WM: Mutter
WM Theme: Adwaita
Theme: Yaru-light [GTK2/3]
Icons: Yaru [GTK2/3]
Terminal: gnome-terminal
CPU: Intel i7-7500U (4) @ 3.500 GHz
GPU: NVIDIA GeForce 940MX
GPU: Intel HD Graphics 620
Memory: 3414MiB / 15880MiB
Disks:
[![Partition 3 and 4 were mounted at startup. I'll quit 3 since I don't want it anymore mounted, but 4 is for files so I need it mounted at start-up.][1]][1]
cat /etc/fstab:
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda6 during installation
UUID=0523d920-7cab-41b3-a0c0-341c5de2fce1 / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sda1 during installation
UUID=DCCD-34F3 /boot/efi vfat umask=0077 0 1
# swap was on /dev/sda7 during installation
UUID=21455d02-8efb-4566-8474-74ed32541dc7 none swap sw 0 0
/dev/disk/by-uuid/82B0CEE6B0CEE031 /mnt/82B0CEE6B0CEE031 auto nosuid,nodev,nofail,x-gvfs-show,x-gvfs-name=Windows 0 0
/dev/disk/by-uuid/84D85686D8567700 /mnt/84D85686D8567700 auto nosuid,nodev,nofail,x-gvfs-show,x-gvfs-name=Datos 0 0
free -h:
total used free shared buff/cache available
Mem: 15Gi 2,9Gi 2,8Gi 646Mi 9,7Gi 11Gi
Swap: 3,3Gi 0B 3,3Gi
swapon -s:
Filename Type Size Used Priority
/dev/sda7 partition 3458044 0 -2
j@j-Inspiron-17-7779:~$
After unmounting at start:
j@j-Inspiron-17-7779:~$ systemd-analyze blame
29.376s udisks2.service
26.747s systemd-journal-flush.service
18.215s snapd.service
18.054s networkd-dispatcher.service
16.949s NetworkManager-wait-online.service
13.361s apport-autoreport.service
11.996s dev-sda6.device
11.744s accounts-daemon.service
8.674s polkit.service
7.918s avahi-daemon.service
7.915s bluetooth.service
7.897s NetworkManager.service
7.814s iio-sensor-proxy.service
6.968s [email protected]
6.842s switcheroo-control.service
6.829s systemd-logind.service
6.828s thermald.service
6.162s wpa_supplicant.service
4.966s dev-loop3.device
4.796s cpufreqd.service
4.760s dev-loop9.device
4.675s tlp.service
4.503s dev-loop8.device
4.453s gpu-manager.service
4.124s secureboot-db.service
3.996s loadcpufreq.service
3.869s dev-loop2.device
3.694s dev-loop7.device
3.488s gdm.service
3.461s dev-loop6.device
3.445s dev-loop5.device
3.444s dev-loop4.device
3.162s grub-common.service
3.147s apport.service
j@j-Inspiron-17-7779:~$ systemd-analyze
Startup finished in 7.798s (firmware) + 5.318s (loader) + 6.766s (kernel) + 1min 16.122s (userspace) = 1min 36.005s
graphical.target reached after 1min 8.645s in userspace
I'm thinking it might be the snaps? For comparison, I've just tried copying over 3.3 GB in Ubuntu... it went at about 2 MBps and took about 10 minutes. The same thing in Linux Mint, and it took 1 minute, at 30 MBps...
So I'm honestly pretty confused, I think I won't touch it or I'll reinstall it in any case.
After mounting as instructed:
j@j-Inspiron-17-7779:~$ systemd-analyze
Startup finished in 7.881s (firmware) + 4.504s (loader) + 6.694s (kernel) + 57.510s (userspace) = 1min 16.589s
graphical.target reached after 54.163s in userspace
j@j-Inspiron-17-7779:~$ systemd-analyze blame
25.849s snapd.service
25.055s udisks2.service
15.271s NetworkManager-wait-online.service
13.105s dev-sda6.device
10.788s [email protected]
10.720s systemd-journal-flush.service
9.544s networkd-dispatcher.service
8.785s accounts-daemon.service
8.559s apport-autoreport.service
6.585s polkit.service
6.387s NetworkManager.service
6.205s avahi-daemon.service
6.200s bluetooth.service
5.696s iio-sensor-proxy.service
5.676s dev-loop4.device
5.186s dev-loop8.device
5.067s switcheroo-control.service
5.047s systemd-logind.service
5.037s thermald.service
4.772s wpa_supplicant.service
4.504s dev-loop9.device
4.215s dev-loop6.device
3.966s systemd-tmpfiles-setup.service
3.835s gpu-manager.service
3.801s gdm.service
3.777s dev-loop3.device
3.635s dev-loop7.device
3.576s dev-loop1.device
3.563s dev-loop2.device
3.334s dev-loop5.device
3.075s dev-loop0.device
2.948s cpufreqd.service
2.681s secureboot-db.service
2.467s loadcpufreq.service
